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Электронный компонент: Z0220516SSCR4259

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ZiLOG W
ORLDWIDE
H
EADQUARTERS
910 E. H
AMILTON
A
VENUE
C
AMPBELL
, CA 95008
T
ELEPHONE
: 408.558.8500 F
AX
: 408.558.8300 I
NTERNET
:
HTTP
://
WWW
.Z
I
LOG.
COM
M
ODEM
C
ONTROLLER
I
DEAL
FOR
L
OW
P
OWER
C
ONSUMPTION
, S
MALL
S
IZE
R
EQUIREMENTS
P
RODUCT
S
PECIFICATION
Z02205
PS001000-MOD0599
ii
Z02205
PS001000-MOD0599
1999 by ZiLOG, Inc. All rights reserved. Information in this publication concerning the devices, applica-
tions, or technology described is intended to suggest possible uses and may be superseded. ZiLOG, INC.
DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF
THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT. ZiLOG
ALSO DOES NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY INFRINGEMENT
RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR TECHNOLOGY
DESCRIBED HEREIN OR OTHERWISE. Except with the express written approval of ZiLOG, use of
information, devices, or technology as critical components of life support systems is not authorized. No
licenses are conveyed, implicitly or otherwise, by this document under any intellectual property rights.
PS001000-MOD0599
1
P
RODUCT
S
PECIFICATION
Z02205
1
M
ODEM
C
ONTROLLER
I
DEAL
FOR
L
OW
P
OWER
C
ONSUMPTION
, S
MALL
S
IZE
R
EQUIREMENTS
FEATURES
Includes
AT
command set interpreter in on-chip ROM--
no external memory required
Supports Tone dial or Pulse dial
Call progress monitoring controls
Handshake controls
Guard Tone controls
Line quality monitoring and Auto-Retrain
Auto-Dial and Auto-Answer
Glueless interface to Z02201 modem data pump
Watch-Dog Timer (WDT)/Power-On Reset (POR)
Type-I Caller ID
Dynamic power management
CMOS design for low power consumption
0
C to +70
C commercial temperature range
28-pin DIP, SOIC package
4.5V to 5.5V operating range
GENERAL DESCRIPTION
The Z02205 V.22bis Modem Controller serves as the mo-
dem controller in embedded V.22bis modem applications.
A complete modem can be made by adding ZiLOG data
pump (Z02201), phone line interface, and the required DTE
interface. The Z02205 has been designed for low-cost use
and includes a glueless interface to the ZiLOG data pumps.
The Z02205 is ideal for applications where small size and
low power consumption are requirements.
The Z02205 operates over dial-up telephone connections,
provides auto-dial and ring detect, and operates in either
SYNC
or
ASYNC
modes.
The Z02205 includes
AT
command and modem control
firmware in on-chip ROM. It also includes enhanced wake-
up circuitry, programmable Watch-Dog Timers (
WDT
), and
low-noise/EMI options.
AT commands stored on-chip in ROM provide control over
the following modem controller functions:
Call progress monitoring
Handshake negotiation
Dial controls--pulse or tone
S-registers
Auto-answer and auto-dial
Guard tones
On-hook and off-hook
Auto-retrain
Standard Z02205 sample devices and demonstration boards
contain controller code tailored for operation on the North
American phone network. For production usage, customers
must modify the controller code to meet the requirements
of their particular country and application.
Device
ROM
(KB)
RAM*
(Bytes)
Speed
(MHz)
Z02205
16
237
16
Z02205
Modem Controller
ZiLOG
2
PS001000-MOD0599
Note: All signals with an overline, are active Low. For exam-
ple, B/W, in which WORD is active Low; and B/W, in
which BYTE is active Low.
Power connections follow conventional descriptions be-
low:
Connection
Circuit
Device
Power
V
CC
V
DD
Ground
GND
V
SS
Figure 1. Functional Block Diagram
Figure 2. Z02205 Pin Diagram (SOIC/ DIP)
Z02205
Controller
Parallel
Z02201
Eye Pattern
Interface
Line
Interface
Oscilloscope
Telephone
Line
Data
Access
Arrangement
Serial
DTE
Optional
Speaker
Optional
or
Z02922
Data Pump
Optional
D5
D6
D7
DPRD
DPWR
DPRESET
MUTE
V
CC
XTAL2
XTAL1
DPIRQ
RINGDET
DTR
DCD
D4
D3
D2
D1
D0
DPCS
GND
A2
A1
A0
RxD
OH
TxD
SHUNT
28
Z02205
1
14
15
Z02205
ZiLOG
Modem Controller
PS001000-MOD0599
3
PIN DESCRIPTION
Table 1. Z02205 Pin Identification
Pin #
Symbol
Function
Direction
13
D5D7
DSP Register Data Lines 5 through 7
In/Output
4
DPRD
Data Pump Read
Output
5
DPWR
Data Pump Write
Output
6
DPRESET
Data Pump Reset
Output
7
MUTE
Speaker Mute
Output
8
V
CC
Power Supply
9
XTAL2
Crystal Oscillator
Output
10
XTAL1
Crystal Oscillator
Input
11
DPIRQ
Data Pump Interrupt Request
Input
12
RINGDET
Ring Detect Input
Input
13
DTR
Data Terminal Ready
Input
14
DCD
Data Carrier Detect
Output
15
SHUNT
Pulse Dial Shunt Relay Output
Output
16
TxD
Data Transmit
Output
17
OH
Off Hook Relay Output
Output
18
RxD
Data Receive
Input
1921
A0A2
DSP Register Address Lines 0 through 2
Output
22
GND
Ground
23
DPCS
Data Pump Chip Select
Output
2428
D0D4
DSP Register Data Lines 0 through 4
In/Output