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Электронный компонент: MTV112A32

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MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
8051 Embedded CRT Monitor Controller
MASK Version
This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without
notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
Revision 1.2 - 1 - 2001/05/18
FEATURES
8051 core.
384-bytes internal RAM.
32K-bytes program Mask ROM.
14-channels 10V open-drain PWM DAC, 10 dedicated channels and 4 channels shared with I/O pin.
28 bi-direction I/O pin,12 dedicated pin,12 shared with DAC,4 shared with DDC/IIC interface.
5-output pin shared with H/V sync output and self test output pins.
SYNC processor for composite separation, polarity and frequency check, and polarity adjustment.
Built-in monitor self-test pattern generator.
Built-in low power reset circuit.
One slave mode IIC interface and one master mode IIC interface.
IIC interface for DDC1/DDC2B and EEPROM; only one EEPROM needed to store DDC1/DDC2B and
display mode information.
Dual 4-bit ADC or 4 channel 6-bit ADC.
Watchdog timer with programmable interval.
40-pin PDIP and 44-pin PLCC package.
GENERAL DESCRIPTION
The MTV112A32 micro-controller is an 8051 CPU core embedded device specially tailored to CRT monitor
applications. It includes an 8051 CPU core, 384-byte SRAM, 14 built-in PWM DACs, DDC1/DDC2B interface,
24Cxx series EEPROM interface, A/D converter and a 32K-bytes internal program Mask ROM.
BLOCK DIAGRAM
XFR
8051
CORE
P1.0-7
X1
X2
P2.0-3
P3.0-P3.2 P3.4
P0.0-7
RD
WR
INT
1
RST
P2.4-7
RD
WR
P0.0-7
WATCH-DOG
TIMER
RST
H / VSYNC
CONTROL
HSYNC
VSYNC
HBLANK
VBLANK
STOUT
14 CHANNEL
PWM DAC
DDC 1/2 B & FIFO
INTERFACE
HSCL
HSDA
IIC INTERFACE
ISDA
ISCL
DA10-13
DA0-9
ADC
AD0
AD1
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
2
1.0 PIN CONNECTION
MTV112A
P1.0
P1.1/HALFV
P1.2/HALFH
P1.3/HCLAMP
P1.4/AD2
P1.5/AD3
P1.6/AD0
P1.7/AD1
RST
HSCL/P3.0/Rxd
HSDA/P3.1/Txd
ISDA/P3.2/INT0
HSYNC
ISCL/P3.4/T0
VSYNC
HBLANK/P4.1
VBLANK/P4.0
X2
X1
VSS
VDD
DA0/P5.0
DA1/P5.1
DA2/P5.2
DA3/P5.3
DA4/P5.4
DA5/P5.5
DA6/P5.6
DA7/P5.7
DA8
DA9
STOUT/P4.2
DA10/P2.7
DA11/P2.6
DA12/P2.5
DA13/P2.4
P2.3
P2.2
P2.1
P2.0/INT0
MTV112A
NC
P1.5/AD3
P1.6/AD0
P1.7/AD1
RESET
HSCL/P3.0/Rxd
HSDA/P3.1/Txd
ISDA/P3.2/INT0
HSYNC
ISCL/P3.4/T0
VSYNC
DA4/P5.4
DA5/P5.5
DA6/P5.6
DA7/P5.7
DA8
DA9
STOUT/P4.2
DA10/P2.7
DA11/P2.6
DA12/P2.5
NC
NC
HBLANK/P4.1
VBLANK/P4.0
X2
X1
VSS
P2.0/INT0
P2.1
P2.2
P2.3
DA13/P2.4
P1.4/AD2
P1.3/HCLAMP
P1.2/HALFH
P1.1/HALFV
P1.0
VDD
DA0/P5.0
DA1/P5.1
DA2/P5.2
DA3/P5.3
NC
39
38
37
36
35
34
33
32
31
30
29
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
6
5
4
3
2
1
44
43
42
41
40
MTV112A
P1.0
P1.1/HALFV
P1.2/HALFH
P1.3/HCLAMP
P1.4/AD2
P1.5/AD3
P1.6/AD0
P1.7/AD1
RST
HSCL/P3.0/Rxd
HSDA/P3.1/Txd
ISDA/P3.2/INT0
HSYNC
ISCL/P3.4/T0
VSYNC
HCLAMP/P4.4
HBLANK/P4.1
VBLANK/P4.0
X2
X1
VSS
VDD
DA0/P5.0
DA1/P5.1
DA2/P5.2
DA3/P5.3
DA4/P5.4
DA5/P5.5
DA6/P5.6
DA7/P5.7
DA8
DA9
HALFH/P4.3
STOUT/P4.2
DA10/P2.7
DA11/P2.6
DA12/P2.5
DA13/P2.4
P2.3
P2.2
P2.1
P2.0/INT0
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
3
2.0 PIN DESCRIPTIONS
Pin#
Name
Type
40
42
44
Description
P1.0
I/O
1
1
2
General purpose I/O
P1.1/HALFV
I/O
2
2
3
General purpose I/O / Vsync half frequency output.
P1.2/HALFH
I/O
3
3
4
General purpose I/O / Hsync half frequency output.
P1.3/HCLAMP
I/O
4
4
5
General purpose I/O / Hsync clamp pulse output.
P1.4/AD2
I/O
5
5
6
General purpose I/O / ADC input.
P1.5/AD3
I/O
6
6
8
General purpose I/O / ADC input.
P1.6/AD0
I/O
7
7
9
General purpose I/O / ADC input
P1.7/AD1
I/O
8
8
10 General purpose I/O / ADC input
RST
I
9
9
11 Active high reset
HSCL/P3.0/Rxd
I/O
10
10
12 IIC clock / General purpose I/O / Rxd
HSDA/P3.1/Txd
I/O
11
11
13 IIC data / General purpose I/O / Txd
ISDA/P3.2/INT0
I/O
12
12
14 IIC data / General purpose I/O / INT0
HSYNC
I
13
13
15 Horizontal SYNC or Composite SYNC
ISCL/P3.4/T0
I/O
14
14
16 IIC clock / General purpose I/O / T0
VSYNC
I
15
15
17 Vertical SYNC
HCLAMP/P4.4
O
-
16
-
Hsync clamp pulse output / General purpose output
HBLANK/P4.1
O
16
17
19 Horizontal blank / General purpose output
VBLANK/P4.0
O
17
18
20 Vertical blank / General purpose output
X2
O
18
19
21 Oscillator output
X1
I
19
20
22 Oscillator input
VSS
-
20
21
23 Ground
P2.0/INT0
I/O
21
22
24 General purpose I/O / INT0
P2.1
I/O
22
23
25 General purpose I/O
P2.2
I/O
23
24
26 General purpose I/O
P2.3
I/O
24
25
27 General purpose I/O
DA13/P2.4
I/O
25
26
28 PWM DAC output / General purpose I/O (open-drain)
DA12/P2.5
I/O
26
27
30 PWM DAC output / General purpose I/O (open-drain)
DA11/P2.6
I/O
27
28
31 PWM DAC output / General purpose I/O (open-drain)
DA10/P2.7
I/O
28
29
32 PWM DAC output / General purpose I/O (open-drain)
STOUT/P4.2
O
29
30
33 Self-test video output / General purpose output
HALFH/P4.3
O
-
31
-
Hsync half frequency output / General purpose output
DA9
O
30
32
34 PWM DAC output / General purpose I/O (open-drain)
DA8
O
31
33
35 PWM DAC output / General purpose I/O (open-drain)
DA7/P5.7
O
32
34
36 PWM DAC output / General purpose I/O (open-drain)
DA6/P5.6
O
33
35
37 PWM DAC output / General purpose I/O (open-drain)
DA5/P5.5
O
34
36
38 PWM DAC output / General purpose I/O (open-drain)
DA4/P5.4
O
35
37
39 PWM DAC output / General purpose I/O (open-drain)
DA3/P5.3
O
36
38
41 PWM DAC output / General purpose I/O (open-drain)
DA2/P5.2
O
37
39
42 PWM DAC output / General purpose I/O (open-drain)
DA1/P5.1
O
38
40
43 PWM DAC output / General purpose I/O (open-drain)
DA0/P5.0
O
39
41
44 PWM DAC output / General purpose I/O (open-drain)
VDD
-
40
42
1
Positive power supply
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
4
3.0 FUNCTIONAL DESCRIPTION
1. 8051 CPU Core
MTV112A32 includes all 8051 functions with the following exceptions:
1.1 PSEN, ALE, RD and WR pins are disabled. The external RAM access is restricted to XFRs within
MTV112A32.
1.2 Port 0, port 3.3, and ports 3.5 ~ 3.7 are not general-purpose I/O ports. They are dedicated to monitor
control or DAC pins.
1.3 INT1 and T1 input pins are not provided.
1.4 Ports 2.4 ~ 2.7 are shared with DAC pins; ports 3.0 ~ 3.2, and port3.4 are shared with monitor control
pins.
In addition, there are 2 timers, 5 interrupt sources and a serial interface compatible with the standard 8051.
The Txd/Rxd (P3.0/P3.1) pins are shared with DDC interface. INT0/T0 pins are shared with IIC interface. An
extra option can be used to switch the INT0 source from P3.2 to P2.0. This feature maintains an external
interrupt source when IIC interface is enabled.
Note: All registers listed in this document reside in the external RAM area (XFR). For the internal
RAM memory map please refer to the 8051 spec.
Reg name
addr
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
PADMOD 30h (w)
SINT0
IICF
DDCE
IICE
DA13E
DA12E
DA11E
DA10E
PADMOD 31h (w)
P57E
P56E
P55E
P54E
P53E
P52E
P51E
P50E
PADMOD 37h (w)
-
-
-
-
-
-
-
MORE
SINT0 = 1
INT0 source is pin #21.
= 0
INT0 source is pin #12.
IICF
= 1
Selects 400kHz master IIC speed.
= 0
Selects 100kHz master IIC speed.
DDCE = 1
Pin #10 is HSCL; pin #11 is HSDA.
= 0
Pin #10 is P3.0/Rxd; pin #11 is P3.1/Txd.
IICE
= 1
Pin #12 is ISDA; pin #14 is ISCL.
= 0
Pin #12 is P3.2/(INT0*); pin #14 is P3.4/T0.
DA13E = 1
Pin #25 is DA13.
= 0
Pin #25 is P2.4.
DA12E = 1
Pin #26 is DA12.
= 0
Pin #26 is P2.5.
DA11E = 1
Pin #27 is DA11.
= 0
Pin #27 is P2.6.
DA10E = 1
Pin #28 is DA10.
= 0
Pin #28 is P2.7.
P57E = 1
Pin #32 is P5.7.
= 0
Pin #32 is DA7.
P56E = 1
Pin #33 is P5.6.
= 0
Pin #33 is DA6.
P55E = 1
Pin #34 is P5.5.
= 0
Pin #34 is DA5.
P54E = 1
Pin #35 is P5.4.
= 0
Pin #35 is DA4.
P53E = 1
Pin #36 is P5.3.
= 0
Pin #36 is DA3.
P52E = 1
Pin #37 is P5.2.
= 0
Pin #37 is DA2.
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
5
P51E = 1
Pin #38 is P5.1.
= 0
Pin #38 is DA1.
P50E = 1
Pin #39 is P5.0.
= 0
Pin #39 is DA0.
MORE = 1
Bits P57E,P56E,P55E,P54E,P53E,P52E,P51E,P50E,DACK,EHALFV,
EHALFH,ENCLP,ADCMOD can be programmed,and master IIC speed is
controlled by (MCLK1,MCLK0) bits.
= 0
above bits internal keep "0" by MTV112A32, and master IIC speed is controlled
by IICF bit.
* SINT0 should be 0 in this case.
2. Memory Allocation
2.1 Internal Special Function Registers (SFR)
SFR is a group of registers that is the same as standard 8051.
2.2 Internal RAM
There is a 384 bytes RAM in MTV112A32. The first portion of the RAM area contains 256 bytes, accessible
by setting PSW.1=0; the second portion of the RAM area contains 128 bytes, accessible by setting PSW.1=1.
2.3 External Special Function Registers (XFR)
XFR is a group of registers allocated in the 8051 external RAM area. Most of the registers are used for
monitor control or PWM DAC. The program can initialize Ri value and use "MOVX" instruction to access
these registers.
3. PWM DAC
Each D/A converter's output pulse width is controlled by an 8-bit register in XFR. The frequency of PWM clk
is X'tal or 2 * X'tal, selected by DACK. And the frequency of these DAC outputs is (PWM clk frequency)/253
or (PWM clk frequency)/256, selected by DIV253. If DIV253=1, writing FDH/FEH/FFH to the DAC register
generates stable high output. If DIV253=0, the output will pulse low at least once even if the DAC register's
content is FFH. Writing 00H to the DAC register generates stable low output.
reg name
addr
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
DA0
20h (r/w) DA0b7 DA0b6 DA0b5 DA0b4 DA0b3 DA0b2 DA0b1 DA0b0
DA1
21h (r/w) DA1b7 DA1b6 DA1b5 DA1b4 DA1b3 DA1b2 DA1b1 DA1b0
DA2
22h (r/w) DA2b7 DA2b6 DA2b5 DA2b4 DA2b3 DA2b2 DA2b1 DA2b0
DA3
23h (r/w) DA3b7 DA3b6 DA3b5 DA3b4 DA3b3 DA3b2 DA3b1 DA3b0
Accessible by indirect
addressing only.
The value of PSW.1 =
both 0 and 1.
(Using MOV A, @Ri
instruction)
FFH
80H
7FH
00H
SFR
Accessible by direct
addressing.
Accessible by direct
and indirect
addressing.
PSW.1=0
Accessible by direct
and indirect
addressing.
PSW.1 =1
XFR
Accessible by indirect
external RAM
addressing.
(Using MOVX A, @Ri
Instruction.)
FFH
00H
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TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
6
DA4
24h (r/w) DA4b7 DA4b6 DA4b5 DA4b4 DA4b3 DA4b2 DA4b1 DA4b0
DA5
25h (r/w) DA5b7 DA5b6 DA5b5 DA5b4 DA5b3 DA5b2 DA5b1 DA5b0
DA6
26h (r/w) DA6b7 DA6b6 DA6b5 DA6b4 DA6b3 DA6b2 DA6b1 DA6b0
DA7
27h (r/w) DA7b7 DA7b6 DA7b5 DA7b4 DA7b3 DA7b2 DA7b1 DA7b0
DA8
28h (r/w) DA8b7 DA8b6 DA8b5 DA8b4 DA8b3 DA8b2 DA8b1 DA8b0
DA9
29h (r/w) DA9b7 DA9b6 DA9b5 DA9b4 DA9b3 DA9b2 DA9b1 DA9b0
DA10
2Ah (r/w)
DA10b7 DA10b6 DA10b5 DA10b4 DA10b3 DA10b2 DA10b1 DA10b0
DA11
2Bh (r/w)
DA11b7 DA11b6 DA11b5 DA11b4 DA11b3 DA11b2 DA11b1 DA11b0
DA12
2Ch (r/w)
DA12b7 DA12b6 DA12b5 DA12b4 DA12b3 DA12b2 DA12b1 DA12b0
DA13
2Dh (r/w)
DA13b7 DA13b6 DA13b5 DA13b4 DA13b3 DA13b2 DA13b1 DA13b0
WDT
80h
WEN
WCLR
CLRDDC
DIV253
DACK
WDT2
WDT1
WDT0
DA0 (r/w) :
The output pulse width control for DA0.
DA1 (r/w) :
The output pulse width control for DA1.
DA2 (r/w) :
The output pulse width control for DA2.
DA3 (r/w) :
The output pulse width control for DA3.
DA4 (r/w) :
The output pulse width control for DA4.
DA5 (r/w) :
The output pulse width control for DA5.
DA6 (r/w) :
The output pulse width control for DA6.
DA7 (r/w) :
The output pulse width control for DA7.
DA8 (r/w) :
The output pulse width control for DA8.
DA9 (r/w) :
The output pulse width control for DA9.
DA10 (r/w) :
The output pulse width control for DA10.
DA11 (r/w) :
The output pulse width control for DA11.
DA12 (r/w) :
The output pulse width control for DA12.
DA13 (r/w) :
The output pulse width control for DA13.
WDT (w) :
Watchdog timer & special control bit.
DIV253 = 1
The PWM DAC outputs frequency is (PWM clk frequency)/253.
= 0
The PWM DAC output frequency is Xtal frequency/256.
DACK = 1
The PWM clk frequency is 2 x (X'tal frequency).
= 0
The PWM clk frequency is (X'tal frequency).
*1. All D/A converters are centered with value 80h after power-on.
4. H/V SYNC Processing
The H/V SYNC processing block performs the functions of composite signal separation, SYNC input
presence check, frequency counting, and polarity detection and control, as well as the protection of VBLANK
output while VSYNC speeds up to a high DDC communication clock rate. The present and frequency
function block treat any pulse less than one OSC period as noise.
4.1 Composite SYNC Separation
MTV112A32 continuously monitors the input HSYNC. If the vertical SYNC pulse can be extracted from the
input, a CVpre flag is set and the user can select the extracted "CVSYNC" for the source of polarity check,
frequency count and VBLANK. The CVSYNC will have a 10-16 us delay compared to the original signal. The
delay depends on the OSC frequency and composite mix method.
4.2 H/V Frequency Counter
MTV112A32 can discriminate HSYNC/VSYNC frequency and saves the information in XFRs. The 15-bit
Hcounter counts the time of the 64xHSYNC period, but only 11 upper bits are loaded into the
HCNTH/HCNTL latch. The 11-bit output value is {2/H-Freq} / {1/OSC-Freq}, updated once per
VSYNC/CVSYNC period when VSYNC/CVSYNC is present or continuously updated when VSYNC/CVSYNC
is not present. The 14-bit Vcounter counts the time between 2 VSYNC pulses, but only 9 upper bits are
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
7
loaded into the VCNTH/VCNTL latch. The 9-bit output value is {1/V-Freq} / {512/OSC-Freq}, updated every
VSYNC/CVSYNC period. An extra overflow bit indicates the condition of the H/V counter overflow. The
VFchg/HFchg interrupt is active when VCNT/HCNT value changes or overflows. Tables 4.2.1 and 4.2.2
shows the HCNT/VCNT value under the operations of 8MHz and 12MHz.
4.2.1 H-Freq Table
Output Value (11 bits)
H-Freq(KHZ)
8MHz OSC (hex / dec)
12MHz OSC (hex / dec)
1
30
215h / 533
320h / 800
2
31.5
1FBh / 507
2F9h / 761
3
33.5
1DDh /477
2CCh / 716
4
35.5
1C2h / 450
2A4h / 676
5
36.8
1B2h / 434
28Ch / 652
6
38
1A5h / 421
277h / 631
7
40
190h / 400
258h / 600
8
48
14Dh / 333
1F4h / 500
9
50
140h / 320
1E0h / 480
10
57
118h / 280
1A5h / 421
11
60
10Ah / 266
190h / 400
12
64
0FAh / 250
177h / 375
13
100
0A0h / 160
0F0h / 240
*1. The H-Freq output (HF10 - HF0) is valid.
*2. The tolerance deviation is + 1 LSB.
4.2.2 V-Freq Table
Output Value (9 bits)
V-Freq(Hz)
8MHz OSC (hex / dec)
12MHz OSC (hex / dec)
1
56.25
115h / 277
1A0h / 416
2
59.94
104h / 260
187h / 391
3
60
104h / 260
186h / 390
4
60.32
103h / 259
184h / 388
5
60.53
102h / 258
183h / 387
6
66.67
0EAh / 234
15Fh / 351
7
70.069
0DEh / 222
14Eh / 334
8
70.08
0DEh / 222
14Eh / 334
9
72
0D9h /217
145h / 325
10
72.378
0D7h / 215
143h / 323
11
72.7
0D6h / 214
142h / 322
12
87
0B3h / 179
10Dh / 269
*1. The V-Freq output (VF8 - VF0) is valid.
*2. The tolerance deviation is + 1 LSB.
4.3 H/V Presence Check
The Hpresent function checks the input HSYNC pulse. The Hpre flag is set when HSYNC is over 10KHz or
cleared when HSYNC is under 10Hz. The Vpresent function checks the input VSYNC pulse. The Vpre flag
is set when VSYNC is over 40Hz or cleared when VSYNC is under 10Hz. A control bit "PREFS" selects the
time base for these functions. The HPRchg interrupt is set when the Hpre value changes. The VPRchg
interrupt is set when the Vpre/CVpre value changes. However, the CVpre flag interrupt may be disabled
when S/W disables the composite function.
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
8
4.4 H/V Polarity Detection
The polarity functions detect the input HSYNC/VSYNC high and low pulse duty cycle. If the high pulse
duration is longer than that of the low pulse, the negative polarity is asserted; otherwise, positive polarity is
asserted. The HPLchg interrupt is set when the Hpol value changes. The VPLchg interrupt is set when the
Vpol value changes.
4.5 Output HBLANK/VBLANK Control and Polarity Adjustment
The HBLANK is the mux output of HSYNC and self-test horizontal pattern. The VBLANK is the mux output of
VSYNC, CVSYNC and the self-test vertical pattern. The mux selection and output polarity are S/W
controllable. The VBLANK output is cut off when VSYNC frequency is over 200Hz or 133Hz depends on
8MHz/12MHz OSC selection. The HBLANK/VBLANK shares the output pin with P4.1/ P4.0.
4.6 Self-Test Pattern Generator
This generator can generate 4 display patterns for testing purposes: positive cross-hatch, negative cross-
hatch, full white, and full black (shown in the following figure). It was originally designed to support the
monitor manufacturer in performing a burn-in test, or to offer the end-user a reference to check the monitor.
The generator's output STOUT shares the output pin with P4.2.
Display Region
Positive Cross-Hatch
Negative Cross-Hatch
Full White
Full Black
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TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
9
MTV112A32 Self-Test Pattern Timing (8MHz)
63.5KHz, 60Hz
31.7KHz, 60Hz
Absolute time
H dots
Absolute time
H dots
Hor. Total Time
Us(A)=15.75
1280
Us(A)=31.5
640
Hor. Acitve Time
Us(D)=12.05
979.3
Us(D)=24.05
488.6
Hor. F. P.
Us(E)=0.2
16.25
Us(E)=0.45
9
SYNC Pulse Width
Us(B)=1.5
122
Us(B)=3
61
Hor. B. P.
Us(C)=2
162.54
Us(C)=4
81.27
V lines
V lines
Hor. Total Time
Us(O)=16.6635
1024
Us(O)=16.6635
480
Hor. Active Time
Us(R)=15.6555
962
Us(R)=15.6555
451
Hor. F. P.
Us(S)=0.063
3.87
Us(S)=0.063
1.82
SYNC Pulse Width
Us(P)=0.063
3.87
Us(P)=0.063
1.82
Hor. B. P.
Us(Q)=0.882
54.2
Us(Q)=0.882
25.4
* 8 x 8 blocks of cross-hatch pattern in display region.
4.7 VSYNC Interrupt
MTV112A32 checks the VSYNC input pulse and generates an interrupt at its leading edge. The VSYNC1
flag is set each time MTV112A32 detects a VSYNC pulse.
4.8 H/V SYNC Processor Register
reg name
addr
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
PSTUS
40h (r)
CVpre
X
Hpol
Vpol
Hpre
Vpre
Hoff
Voff
HCNTH
41h (r)
Hovf
X
X
X
X
HF10
HF9
HF8
HCNTL
42h (r)
HF7
HF6
HF5
HF4
HF3
HF2
HF1
HF0
VCNTH
43h (r)
Vovf
X
X
X
X
X
X
VF8
VCNTL
44h (r)
VF7
VF6
VF5
VF4
VF3
VF2
VF1
VF0
PCTR0
40h (w)
C1
C0
HVsel
STOsel PREFS HALFV
HBpl
VBpl
PCTR2
42h (w)
X
X
X
Selft
STbsh
Rt1
Rt0
STF
PCTR3
43h (w) ENCLP CLPEG CLPPO CLPW2 CLPW1 CLPW0 EHALFV
EHALFH
P4OUT
44h (w)
X
X
X
P44
P43
P42
P41
P40
D
C
B
A
E
R
Q
P
O
S
Hor.
Vert.
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P5OUT 45h (r/w)
P57
P56
P55
P54
P53
P52
P51
P50
PCTR6
46h (w)
X
X
X
X
X
X
CLPsel
HALFHsel
INTFLG 50h (r/w) HPRchg VPRchg HPLchg VPLchg HFchg
VFchg
FIFOI
MI
INTEN
60h (w)
EHPR
EVPR
EHPL
EVPL
EHF
EVF
EFIFO
EMI
INTFLG 51h(r/w)
X
X
X
X
X
X
X
VSYNC
INTEN
61h(w)
X
X
X
X
X
X
X
EVSI
Present
Check
Digital Filter
Present
Check
Vpre
Frequency
Count
Vfreq
Polarity
Check
Vpol
High
Frequency
Mask
Vself
CVSYNC
Polarity Check &
Sync Seperator
CVpre
Hpol
Hself
Digital Filter
Present Check &
Frequency Count
Hpre
Hfreq
HBpl
VBpl
VBLANK
HBLANK
VSYNC
HSYNC
H/V SYNC Processor Block Diagram
PSTUS (r) :
The status of polarity, presence and static level for HSYNC and VSYNC.
CVpre = 1
The extracted CVSYNC is present.
= 0
The extracted CVSYNC is not present.
Hpol
= 1
HSYNC input is positive polarity.
= 0
HSYNC input is negative polarity.
Vpol
= 1
VSYNC (CVSYNC) is positive polarity.
= 0
VSYNC (CVSYNC) is negative polarity.
Hpre
= 1
HSYNC input is present.
= 0
HSYNC input is not present.
Vpre
= 1
VSYNC input is present.
= 0
VSYNC input is not present.
Hoff*
= 1
HSYNC input's off-level is high.
= 0
HSYNC input's off-level is low.
Voff*
= 1
VSYNC input's off-level is high.
= 0
VSYNC input's off-level is low.
*Hoff and Voff are valid when Hpre=0 or Vpre=0.
HCNTH (r) :
H-Freq counter's high bits.
Hovf
= 1
H-Freq counter overflows; this bit is cleared by H/W when condition removed.
HF10 - HF8 :
3 high bits of H-Freq counter.
HCNTL (r) :
H-Freq counter's low bits.
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VCNTH (r) :
V-Freq counter's high bits.
Vovf
= 1
V-Freq counter overflows; this bit is cleared by H/W when condition removed.
VF8 :
High bit of V-Freq counter.
VCNTL (r) :
V-Freq counter's low bits.
PCTR0 (w) :
SYNC processor control register 0.
C1, C0 = 1,1
Selects CVSYNC as the polarity, Freq and VBLANK source.
= 1,0
Selects VSYNC as the polarity, Freq and VBLANK source.
=
0,0
Disables composite function (MTV012 compatible mode).
= 0,1
H/W auto switches to CVSYNC when CVpre=1 and VSpre=0.
HVsel = 1
Pin #16 is P4.1, pin #17 is P4.0.
= 0
Pin #16 is HBLANK, pin #17 is VBLANK.
STOsel = 1
Pin #29 is P4.2.
= 0
Pin #29 is STOUT.
PREFS = 0
Selects 8MHz OSC as H/V presence check and self-test pattern time base.
= 1
Selects 12MHz OSC as H/V presence check and self-test pattern time base.
HALFV = 1
VBLANK is half frequency output of VSYNC.
HBpl =
1
Negative polarity HBLANK output.
= 0
Positive polarity HBLANK output.
VBpl
= 1
Negative polarity VBLANK output.
= 0
Positive polarity VBLANK output.
PCTR2 (w) :
Self-test pattern generator control.
Selft
= 1
Enables generator.
= 0
Disables generator.
STbsh = 1
63.5KHz (horizontal) output selected.
= 0
31.75KHz (horizontal) output selected.
Rt1, Rt0= 0,0
Positive cross-hatch pattern output.
= 0,1
Negative cross-hatch pattern output.
= 1,0
Full white pattern output.
= 1,1
Full black pattern output.
STF
=
1
Enables STOUT output.
= 0
Disables STOUT output.
PCTR3 (w) :
HSYNC clamp pulse control register.
ENCLP = 1
pin #4 is HCLAMP.
= 0
pin #4 is P1.3.
CLPEG = 1
Clamp pulse follows HSYNC leading edge.
= 0
Clamp pulse follows HSYNC trailing edge.
CLPPO= 1
Positive polarity clamp pulse output.
= 0
Negative polarity clamp pulse output.
CLPW2 : CLPW0 : Pulse width of clamp pulse is
[(CLPW2:CLPW0) + 1] X 0.25 s for 8MHz X'tal selection,or
[(CLPW2:CLPW0) + 1] X 0.167 s for 12MHz X'tal selection.
EHALFV= 1
pin #2 is HALFV.
= 0
pin #2 is P1.1.
EHALFV= 1
pin #3 is HALFH.
= 0
pin #3 is P1.2.
P4OUT (w) :
Port 4 data output value.
P5OUT (r/w) : Port 5 data input/output value.
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PCTR6 (w) :
Sync processor control register 6.
CLPsel = 1
pin HCLAMP/P4.4 is P4.4.
= 0
pin HCLAMP/P4.4 is HCLAMP.
HALFHsel = 1
pin HALFH/P4.3 is P4.3.
= 0
pin HALFH/P4.3 is HALFH.
INTFLG (w) : Interrupt flag. An interrupt event will set its individual flag, and, if the corresponding interrupt
enabler bit is set, the 8051 core's INT1 source will be driven by a zero level. Software MUST
clear this register while serving the interrupt routine.
HPRchg= 1
No action.
= 0
Clears HSYNC presence change flag.
VPRchg= 1
No action.
= 0
Clears VSYNC presence change flag.
HPLchg= 1
No action.
= 0
Clears HSYNC polarity change flag.
VPLchg= 1
No action.
= 0
Clears VSYNC polarity change flag.
HFchg = 1
No action.
= 0
Clears HSYNC frequency change flag.
VFchg = 1
No action.
= 0
Clears VSYNC frequency change flag.
VSYNCi= 1
No action.
= 0
Clears VSYNC interrupt flag.
INTFLG (r) :
Interrupt flag.
HPRchg= 1
Indicates an HSYNC presence change.
VPRchg= 1
Indicates a VSYNC presence change.
HPLchg= 1
Indicates a HSYNC polarity change.
VPLchg= 1
Indicates a VSYNC polarity change.
HFchg = 1
Indicates an HSYNC frequency change or counter overflow.
VFchg = 1
Indicates a VSYNC frequency change or counter overflow.
VSYNCi= 1
Indicates a VSYNC interrupt.
INTEN (w) :
Interrupt enabler.
EHPR = 1
Enables HSYNC presence change interrupt.
EVPR = 1
Enables VSYNC presence change interrupt.
EHPL = 1
Enables HSYNC polarity change interrupt.
EVPL = 1
Enables VSYNC polarity change interrupt.
EHF
= 1
Enables HSYNC frequency change / counter overflow interrupt.
EVF
= 1
Enables VSYNC frequency change / counter overflow interrupt.
EVSI
= 1
Enables VSYNC interrupt.
5. DDC & IIC Interface
5.1 DDC1 Mode
MTV112A32 enters DDC1 mode after Reset. In this mode, VSYNC is used as a data clock. The HSCL pin
should remain at high. The data output to the HSDA pin is taken from 8 bytes f FIFO in MTV112A32.
MTV112A32 fetches the data byte from FIFO, then sends it in a 9-bit packet format which includes a null bit
(=1) as packet separator. The software program should load EDID data (original stored in EEPROM) into
FIFO and take care of the FIFO depth. FIFO sets the FIFOI (FIFO low interrupt) flag when there are fewer
than N (N=2,3,4 or 5 controlled by LS1, LS0) bytes to be output to the HSDA pin. To prevent FIFO from
emptying, software needs to write EDID data to FIFO as soon as FIFOI is set. On the other hand, FIFO sets
the FIFOH flag when its capacity is full. Software should not write additional data to FIFO in such instance.
The FIFOI interrupt can be masked or enabled by an EFIFO control bit. A simple way to control FIFO is to
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set (LS1, LS0=1,0) and enable FIFOI interrupt, then software may load 4 bytes into FIFO each time a FIFOI
interrupt arises. A special control bit "LDFIFO" can reduce the software effort when EDID data is stored in
EEPROM. If LDFIFO=1, FIFO will be automatically loaded with MBUF data when software reads MBUF XFR.
5.2 DDC2B Mode
MTV112A32 switches to DDC2B mode when it detects a high to low transition on the HSCL pin. Once
MTV112A32 enters DDC2B mode, the host can access the EEPROM using IIC bus protocol as if the HSDA
and HSCL are directly bypassed to ISDA and ISCL pins. MTV112A32 will return to DDC1 mode if HSCL is
kept high for a 128 VSYNC clock period. However, it will lock in DDC2B mode if a valid IIC access has been
detected on HSCL/HSDA bus. The DDC2 flag reflects the current DDC status. S/W may clear it by setting
CLRDDC. Control bits M128/M256 are used to block the EEPROM write operation from the host if the
address is over 128/256.

5.3 Master Mode IIC Function Block
The master mode IIC block is connected to the ISDA and ISCL pins. Its speed can be selected to 100kHz or
400kHz by s/w set IICF control bit while MORE=0, or to 50KHz,100KHz,200KHz or 400KHz by s/w set
(MCLK1,MCLK0) bits while MORE=1. The software program can access the external EEPROM through this
interface. Since the EDID/VDIF data and display information share the common EEPROM, precaution must
be taken to avoid bus conflict. In DDC1 mode, the IIC interface is controlled by MTV112A32 only. In DDC2B
mode, the host may access the EEPROM directly. Software can test the HSCL condition by reading the
BUSY flag, which is set in case HSCL=0. A summary of master IIC access is illustrated as follows:
5.3.1. To Write EEPROM
1. Write the EEPROM slave address to MBUF (bit 0 = 0).
2. Set the S bit to Start.
3. After MTV112A32 transmits this byte, an MI interrupt will be triggered.
4. The program can write MBUF to transfer the next byte or set the P bit to Stop.
* Please see the attachments about "Master IIC Transmission Timing".
5.3.2. To Read EEPROM
1. Write the slave address to MBUF (bit 0 = 1).
2. Set the S bit to Start.
3. After MTV112A32 transmits this byte, a MI interrupt will be triggered.
4. Set or reset the ACK flag according to the IIC protocol.
5. Read out the useless byte to MBUF to continue the data transfer.
6. After MTV112A32 receives a new byte, the MI interrupt is triggered again.
7. Reading MBUF also triggers the next receiving operation, but setting the P bit before reading can
terminate the operation.
* Please see the attachments about "Master IIC Timing Receiving".
5.4 Slave Mode IIC Function Block
The slave mode IIC block can be connected to HSDA/HSCL or ISDA/ISCL pins, and selected by the SLVsel
control bit. This block can receive/transmit data using the IIC protocol. S/W may set the SLVADR register to
determine which slave address the block should respond to.
In receiving mode, the block first detects an IIC slave address match condition then issues a SLVMI interrupt.
The data received from SDA is shifted into a shift register and written to the RCBUF latch. The first byte
loaded is the word address (slave address is dropped). This block also generates an RCBI (Receive Buffer
full Interrupt) each time the RCBUF is loaded. If S/W can't read out the RCBUF in time, the next byte will not
be written to RCBUF and the slave block will return NACK to the master. This feature guarantees the data
integrity of communication. A WADR flag can tell S/W if the data in RCBUF is a word address.
In transmission mode, the block first detects an IIC slave address match condition then issues a SLVMI. In
the meantime, the data pre-stored in the TXBUF is loaded into the shift register, results in TXBUF emptying
and generates a TXBI (Transmission Buffer Interrupt). S/W should write the TXBUF a new byte for the next
transfer before the shift register empties. Failure to do this will cause data corruption. The TXBI occurs each
time the shift register receives new data from TXBUF. The SLVMI is cleared by writing the SLVSTUS
register. The RCBI is cleared by reading the RCBUF. The TXBI is cleared by writing the TXBUF.
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If the control bit ENSCL is set, the block will hold SCL low until the RCBI/TXBI is cleared.
*Please see the attachments about "Slave IIC Block Timing".
Reg name
addr
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
MCTR
00h (w)
LS1
LS0
LDFIFO
M256
M128
ACK
P
S
MSTUS
00h (r)
X
SCLERR
DDC2
BERR
HFREQ FIFOH
FIFOL
BUSY
MCTR
01h (w)
X
X
X
X
X
X
MCLK1 MCLK0
MBUF
10h (r/w) MBUF7 MBUF6 MBUF5 MBUF4 MBUF3 MBUF2 MBUF1 MBUF0
INTFLG 50h (r/w) HPRchg VPRchg HPLchg VPLchg HFchg
VFchg
FIFOI
MI
INTEN
60h (w)
EHPR
EVPR
EHPL
EVPL
EHF
EVF
EFIFO
EMI
FIFO
70h (w)
FIFO7
FIFO6
FIFO5
FIFO4
FIFO3
FIFO2
FIFO1
FIFO0
SLVCTR 90h (w) ENSLV SLVsel
ERCBI ESLVMI ETXBI
ENSCL
X
X
SLVSTUS 91h (r)
WADR
SLVS
RCBI
SLVMI
TXBI
RWB
ACKIN
X
SLVSTUS 91h (w)
Write to clear SLVMI
RCBUF
92h (r) RCbuf7 RCbuf6 RCbuf5 RCbuf4 RCbuf3 RCbuf2 RCbuf1 RCbuf0
TXBUF
92h (w) TXbuf7 TXbuf6 TXbuf5 TXbuf4 TXbuf3 TXbuf2 TXbuf1 TXbuf0
SLVADR 93h (w) SLVadr7 SLVadr6 SLVadr5 SLVadr4 SLVadr3 SLVadr2 SLVadr1
X
MCTR (w) :
Master IIC interface control register.
LS1, LS0
= 11
FIFOL is the status in which FIFO depth < 5.
= 10
FIFOL is the status in which FIFO depth < 4.
= 01
FIFOL is the status in which FIFO depth < 3.
= 00
FIFOL is the status in which FIFO depth < 2.
LDFIFO =
1
FIFO will be written while S/W reads MBUF.
M256
= 1
Disables host writing EEPROM when address is over 256.
M128
= 1
Disables host writing EEPROM when address is over 128.
ACK
= 1
In receiving mode, no acknowledgment is given by MTV112A32.
= 0
In receiving mode, ACK is returned by MTV112A32.
S, P
=
, 0 Start condition when Master IIC is not transferring.
= X,
Stop condition when Master IIC is not transferring.
= 1, X
Will resume transfer after a read/write MBUF operation.
= X, 0
Forces HSCL low and occupies the IIC bus.
MCLK1 : MCLK0 : Master IIC speed select,
= 0
50KHz for 8MHz X'tal, 75KHz for 12MHz X'tal.
= 1
100KHz for 8MHz X'tal, 150KHz for 12MHz X'tal.
= 2
200KHz for 8MHz X'tal, 300KHz for 12MHz X'tal .
= 3
400KHz for 8MHz X'tal, 600KHz for 12MHz X'tal.
* MTV112A32 uses a 100KHz clock to sample the S/P bit; any pulse should sustain at least 20us.
* A write/read MBUF operation can be recognized only after 10us of the MI flag's rising edge.
MSTUS (r) :
Master IIC interface status register.
SCLERR
= 1
The ISCL pin has been pulled low by other devices during the transfer,
cleared when S=0.
DDC2
= 1
DDC2B is active.
= 0
MTV112A32 remains in DDC1 mode.
BERR
= 1
IIC bus error, no ACK received from the slave, updated each time the
slave sends ACK on the ISDA pin.
HFREQ
= 1
MTV112A32 has detected a higher than 200Hz clock on the VSYNC pin.
FIFOH
= 1
FIFO high indicated.
FIFOL
= 1
FIFO low indicated.
BUSY
= 1
Host drives the HSCL pin to low.
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* While writing FIFO, the FIFOH/FIFOL flag will reflect the FIFO condition after 30us.
MBUF (w) :
Master IIC data shift register, after START and before STOP condition, write this register will
resume MTV112A32's transmission to the IIC bus.
MBUF (r) :
Master IIC data shift register, after START and before STOP condition, read this register will
resume MTV112A32's receiving from the IIC bus.
INTFLG (w) :
Interrupt flag. An interrupt event will set its individual flag, and, if the corresponding interrupt
enabler bit is set, the 8051 INT1 source will be driven by a zero level. Software MUST clear
this register while serving the interrupt routine.
FIFOI = 1
No action.
= 0
Clears FIFOI flag.
MI
= 1
No action.
= 0
Clears Master IIC bus interrupt flag (MI).
INTFLG (r) :
Interrupt flag.
FIFOI = 1
Indicates the FIFO low condition; when EFIFO is set, MTV112A32 will be
interrupted by INT1.
MI
= 1
Indicates when a byte is sent/received to/from the IIC bus; when EME is active,
MTV112A32 will be interrupted by INT1.
INTEN (w) :
Interrupt enabler.
EFIFO = 1
Enables FIFO interrupt.
EMI
= 1
Enables Master IIC bus interrupt.
FIFO (w) :
Writes FIFO contents.
SLVCTR (w) : Slave IIC block control.
ENSLV
= 1
Enables slave IIC block.
= 0
Disables slave IIC block.
SLVsel
= 1
Slave IIC connects to ISDA/ISCL.
= 0
Slave IIC connects to HSDA/HSCL.
ERCBI
= 1
Enables slave receiving buffer interrupt.
ESLVMI
= 1
Enables slave address match interrupt.
ETXBI
= 1
Enables slave transmission buffer interrupt.
ENSCL
= 1
Enables slave block to hold SCL pin low.
SLVSTUS (r) : Slave IIC block status.
WADR
= 1
The data in SLVBUF is a word address.
SLVS
= 1
The slave block has detected a START; cleared when STOP detected.
RCBI
= 1
RCBUF has loaded a new data byte; reset by S/W reading RCBUF.
SLVMI
= 1
The slave block has detected the slave address match condition; cleared
by S/W writing SLVSTUS.
TXBI
= 1
TXBUF is empty; reset by S/W writing TXBUF.
RWB
= 1
Current transfer is slave transmitting.
= 0
Current transfer is slave receiving.
ACKIN
= 1
Master responds to NACK.
SLVSTUS (w) : Clears SLVMI flag.
RCBUF (r) :
Slave IIC receives data buffer.
TXBUF (w) :
Slave IIC transmits data buffer.
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SLVADR (w) : Slave IIC address to which the slave block should respond.
6. Low Power Reset (LVR) & Watchdog Timer
When the voltage level of the power supply is below 4.0V for a specific time, the LVR will generate a chip
resetting signal. After the power supply is above 4.0V, LVR maintains the reset state for 144 Xtal cycles to
guarantee the chip exit reset condition has a stable Xtal oscillation. The specific time of power supply in a
low level is 3us and is adjustable by an external capacitor connected to the RST pin.
The watchdog timer automatically generates a device reset when it overflows. The interval of overflow is
0.25 sec x N, in which N is a number from 1 to 8, and can be programmed via register WDT (2:0). The timer
function is disabled after power-on reset. The user can activate this function by setting WEN and clear the
timer by setting WCLR.
7. A/D Converter
The MTV112 is equipped with two 4-bit or four 6-bit A/D converters. Each one can be enabled/disabled by
S/W control. The refresh rate for the ADC is OSC freq./6144(4-bit) or OSC freq./12288(6-bit). The ADC
compare the input pin voltage with the internal VDD*N/16(4-bit) or VDD*N/64(6-bit) voltage (where N = 0 -15
or N = 0 - 63). The ADC output value is N when pin voltage is greater than VDD*N/16 or VDD *N/64 and
smaller than VDD*(N+1)/16 or VDD*(N+1)/64.
Reg name
addr
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
ADC
A0h (w) ENADC
X
X
X
X
X
EADC1 EADC0
ADC
A0h (r)
AD1b3
AD1b2
AD1b1
AD1b0
AD0b3
AD0b2
AD0b1
AD0b0
ADC
A0h (r)
X
X
ADb5
ADb4
ADb3
ADb2
ADb1
ADb0
WDT
80h (w)
WEN
WCLR
CLRDDC
DIV253
DACK
WDT2
WDT1
WDT0
WDT (w) :
Watchdog timer control register.
WEN
= 1
Enables watchdog timer.
WCLR
= 1
Clears watchdog timer.
CLRDDC
= 1
Clears DDC2 flag.
WDT2: WDT0 = 0
Overflow interval = 8 x 0.25 sec.
= 1
Overflow interval = 1 x 0.25 sec.
= 2
Overflow interval = 2 x 0.25 sec.
= 3
Overflow interval = 3 x 0.25 sec.
= 4
Overflow interval = 4 x 0.25 sec.
= 5
Overflow interval = 5 x 0.25 sec.
= 6
Overflow interval = 6 x 0.25 sec.
= 7
Overflow interval = 7 x 0.25 sec.
ADC (w) :
ADC control.
ENADC
=
1
Enables ADC.
ADCMOD
= 1
4 channels 6 bits ADC are selected.
Note: Only one ADC input can be enabled at the same time.
= 0
Dual 4 bits ADC are selected.(ADC1 and ADC0)
EADC3
= 1
Enables ADC3 pin input.
EADC2
= 1
Enables ADC2 pin input.
EADC1
= 1
Enables ADC1 pin input.
EADC0
= 1
Enables ADC0 pin input.
ADC (r) :
ADC conversion result.
AD1b3: AD1b0 4-bit ADC1 convert result.
AD0b3: AD0b0 4-bit ADC0 convert result.
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17
ADb5: ADb0
6-bit ADC convert result.
4.0 Test Mode Condition
In normal applications, users should avoid the MTV012 entering its test/program mode, outlined as follow:
Test Mode A: RESET=1 & DA9=0 & DA8=1 & DA7=1 &DA6=0
Test Mode B: RESET falling edge & DA9=1 & DA8=0 & DA7=1 & DA6=0
5.0 ELECTRICAL PARAMETERS
5.1 Absolute Maximum Ratings
at: Ta= 0 to 70 oC, VSS=0V
Name
Symbol
Range
Unit
Maximum Supply Voltage
VDD
-0.3 to +6.0
V
Maximum Input Voltage
Vin
-0.3 to VDD+0.3
V
Maximum Output Voltage
Vout
-0.3 to VDD+0.3
V
Maximum Operating Temperature
Topg
0 to +70
oC
Maximum Storage Temperature
Tstg
-25 to +125
oC
5.2 Allowable Operating Conditions
at: Ta= 0 to 70 oC, VSS=0V
Name
Symbol
Min.
Max.
Unit
Supply Voltage
VDD
4.0
6.0
V
Input "H" Voltage
Vih1
0.4 x VDD
VDD +0.3
V
Input "L" Voltage
Vil1
-0.3
0.15 x VDD
V
Operating Freq.
Fopg
-
15
MHz
5.3 DC Characteristics
at: Ta=0 to 70 oC, VDD=4.0V ~ 6.0V, VSS=0V
Name
Symbol
Condition
Min.
Typ.
Max.
Unit
Output "H" Voltage, except open-
drain pins: pin #s 16, 17, 29
Voh1
Ioh=-50uA
4
V
Output "H" Voltage, pin #s 16, 17, 29
Voh2
Ioh=-1mA
4
V
Output "L" Voltage
Vol
Iol=8mA
0.45
V
Active
18
24
mA
Idle
1.3
4.0
mA
Power Supply Current
Idd
Power-Down
50
80
uA
RST Pull-Down Resistor
Rrst
VDD=5V
50
150
Kohm
Pin Capacitance
Cio
15
pF
5.4 AC Characteristics
at: Ta=0 to 70 oC, VDD=4.0V ~ 6.0V, VSS=0V
Name
Symbol
Condition
Min.
Typ.
Max.
Unit
Crystal Frequency
fXtal
8
MHz
PWM DAC Frequency
fDA
fXtal=8MHz
31.25
31.62
KHz
PWM DAC Frequency
fDA
fXtal=12MHz
46.875
47.43
KHz
HS Input Pulse Width
tHIPW fXtal=8MHz
0.3
12
uS
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
18
MTV 112A
36.83mm +/-0.05
15.494mm +/-0.254
70TYP.
0.457mm +/-0.127
1.270mm +/-0.254
1.981mm
+/-0.254
3.81mm
+/-0.127
1.778mm
+/-0.127
0.254mm
(min.)
3.302mm
+/-0.254
13.868mm +/-0.102
16.256mm +/-0.508
0.254mm
+/-0.102
5
o
~7
0
6
o
+/-3
o
VS Input Pulse Width
tVIPW fXtal=8MHz
3
US
HS Input Pulse Width
tHIPW fXtal=12MHz
0.2
8
US
VS Input Pulse Width
tVIPW fXtal=12MHz
2
US
HSYNC to HBLANK Output Jitter
tHHBJ
5
NS
H+V to VBLANK Output Delay
tVVBD fXtal=8MHz
16
uS
H+V to VBLANK Output Delay
tVVBD fXtal=12MHz
10
uS
VS Pulse Width in H+V Signal
tVCPW fXtal=8MHz
32
uS
VS Pulse Width in H+V Signal
tVCPW FXtal=12MHz
20
uS
6.0 PACKAGE DIMENSION
6.1 40 pin PDIP 600 mil
6.2 42 pin SDIP 600 mil
52.197mm +/-
0.127
15.494mm +/-
0.254
2.540m
m
0.457mm +/-
0.127
1.270mm +/-
0.254
1.981m
m
+/-0.254
3.81mm
+/-0.127
1.778m
m
+/-0.127
0.254m
m
(min.)
3.302m
m
+/-0.254
13.868mm +/-
0.102
16.256mm +/-
0.508
0.254m
m
+/-0.102
5
o
~7
0
6
o
+/-
3
o
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
19
6.3 44 pin PLCC Unit: inch
PIN #1 HOLE
0.653 +/-0.003
0.690 +/-0.005
0.690 +/-0.005
0.653 +/-0.003
0.045*45
0
0.180 MAX.
0.020 MIN.
0.610 +/-0.02
0.500
0.070
0.070
7
0
TYP.
0.010
0.050 TYP.
0.013~0.021 TYP.
0.026~0.032 TYP.
MYSON
TECHNOLOGY
MTV112A32
(Rev 1.2)
MTV112A32 Revision 1.2 05/18/2001
20
7.0 Ordering Information
Standard configurations:
Prefix
Part Type
Package Type
Other Information
MTV
112A
N: PDIP
V: PLCC
Part Numbers:
MTV 112A N -999
Prefix
Part Type
Package Type
Code Number