FDC37B80x
ADVANCE INFORMATION
PC98/99 Compliant Enhanced Super I/O
Controller with Keyboard/Mouse Wake-Up
FEATURES
5 Volt Operation
PC98, PC99 Compliant
ISA Plug-and-Play Compatible Register Set
Intelligent Auto Power Management
- Shadowed Write-Only Registers
- Programmable Wake-up Event
Interface
System Management Interrupt, Watchdog
Timer
2.88MB Super I/O Floppy Disk Controller
-
Licensed CMOS 765B Floppy Disk
Controller
-
Software and Register Compatible
with SMSC's Proprietary 82077AA
Compatible Core
-
Supports One Floppy Drive
-
Configurable Open Drain/Push-Pull
Output Drivers
-
Supports Vertical Recording Format
-
16-Byte Data FIFO
-
100% IBM Compatibility
-
Detects All Overrun and Underrun
Conditions
-
Sophisticated Power Control Circuitry
(PCC) Including Multiple Powerdown
Modes for Reduced Power
Consumption
-
DMA Enable Logic
-
Data Rate and Drive Control Registers
-
480 Address, Up to 15 IRQ and
Three DMA Options
Floppy Disk Available on Parallel Port Pins
Enhanced Digital Data Separator
-
2 Mbps, 1 Mbps, 500 Kbps, 300
Kbps, 250 Kbps Data Rates
-
Programmable Precompensation
Modes
Keyboard Controller
-
8042 Software Compatible
-
8 Bit Microcomputer
-
2k Bytes of Program ROM
-
256 Bytes of Data RAM
-
Four Open Drain Outputs Dedicated
for Keyboard/Mouse Interface
-
Asynchronous Access to Two Data
Registers and One Status Register
-
Supports Interrupt and Polling Access
-
8 Bit Counter Timer
-
Port 92 Support
-
Fast Gate A20 and KRESET Outputs
-
8042 P12, P16 and P17 Outputs
Serial Ports
-
Two Full Function Serial Ports
-
High Speed NS16C550A Compatible
UARTs with Send/Receive 16-Byte
FIFOs
-
Supports 230k and 460k Baud
Programmable Baud Rate Generator
Modem Control Circuitry
-
480 Address and 15 IRQ Options
-
IrDA 1.0, HP-SIR, ASK IR Support
2
Multi-ModeTM Parallel Port with
ChiProtectTM
-
Standard Mode IBM PC/XT
, PC/AT
,
and PS/2TM Compatible Bidirectional
Parallel Port
-
Enhanced Parallel Port (EPP)
Compatible - EPP 1.7 and EPP 1.9
(IEEE 1284 Compliant)
-
IEEE 1284 Compliant Enhanced
Capabilities Port (ECP)
-
ChiProtect Circuitry for Protection
Against Damage Due to Printer Power-
On
-
480 Address, Up to 15 IRQ and
Three DMA Options
ISA Host Interface
-
16 Bit Address Qualification
-
8 Bit Data Bus
-
IOCHRDY for ECP and IrCC
-
Three 8 Bit DMA Channels
- Serial IRQ Interface Compatible with
Serialized IRQ Support for PCI
Systems
- PME Interface
100 Pin QFP Package
3
TABLE OF CONTENTS
FEATURES ....................................................................................................................................... 1
GENERAL DESCRIPTION................................................................................................................. 4
DESCRIPTION OF PIN FUNCTIONS ................................................................................................ 6
DESCRIPTION OF MULTIFUNCTION PINS .................................................................................... 10
REFERENCE DOCUMENTS ........................................................................................................... 10
FUNCTIONAL DESCRIPTION ......................................................................................................... 12
SUPER I/O REGISTERS ................................................................................................................. 12
HOST PROCESSOR INTERFACE................................................................................................... 12
FLOPPY DISK CONTROLLER ........................................................................................................ 13
FDC INTERNAL REGISTERS.......................................................................................................... 13
COMMAND SET/DESCRIPTIONS ................................................................................................... 36
INSTRUCTION SET ........................................................................................................................ 39
INFRARED INTERFACE.................................................................................................................. 80
PARALLEL PORT............................................................................................................................ 81
IBM XT/AT COMPATIBLE, BI-DIRECTIONAL AND EPP MODES .................................................... 83
EXTENDED CAPABILITIES PARALLEL PORT ................................................................................ 89
PARALLEL PORT FLOPPY DISK CONTROLLER...........................................................................102
POWER MANAGEMENT................................................................................................................104
V
TR
SUPPORT ................................................................................................................................104
SERIAL IRQ ...................................................................................................................................110
GP INDEX REGISTERS .................................................................................................................115
WATCH DOG TIMER .....................................................................................................................117
8042 KEYBOARD CONTROLLER DESCRIPTION ..........................................................................118
SYSTEM MANAGEMENT INTERRUPT (SMI) .................................................................................127
PME SUPPORT..............................................................................................................................127
CONFIGURATION..........................................................................................................................128
OPERATIONAL DESCRIPTION......................................................................................................158
MAXIMUM GUARANTEED RATINGS .............................................................................................158
DC ELECTRICAL CHARACTERISTICS ..........................................................................................158
TIMING DIAGRAMS .......................................................................................................................163
ECP PARALLEL PORT TIMING......................................................................................................184
80 Arkay Drive
Hauppauge, NY 11788
(516) 435-6000
FAX (516) 273-3123
4
GENERAL DESCRIPTION
The FDC37B80x with IrDA v1.0 support
incorporates a keyboard interface, SMSC's true
CMOS 765B floppy disk controller, advanced
digital data separator, two 16C550A compatible
UARTs, one Multi-Mode parallel port which
includes ChiProtect circuitry plus EPP and ECP,
on-chip 12 mA AT bus drivers, one floppy direct
drive support, and Intelligent Power
Management including PME support. The true
CMOS 765B core provides 100% compatibility
with IBM PC/XT and PC/AT architectures in
addition to providing data overflow and
underflow protection. The SMSC advanced
digital data separator incorporates SMSC's
patented data separator technology, allowing for
ease of testing and use. Both on-chip UARTs
are compatible with the NS16C550A. The
parallel port is compatible with IBM PC/AT
architecture, as well as IEEE 1284 EPP and
ECP. The FDC37B80x incorporates
sophisticated power control circuitry (PCC)
which includes support for keyboard, mouse,
and modem ring wake-up events. The PCC
supports multiple low power-down modes.
The FDC37B80x supports the ISA Plug-and-
Play Standard (Version 1.0a) and provides the
recommended functionality to support Windows
'95. The I/O Address, DMA Channel and
hardware IRQ of each logical device in the
FDC37B80x may be reprogrammed through the
internal configuration registers. There are 480
I/O address location options, a Serialized IRQ
interface, and three DMA channels.
The FDC37B80x does not require any external
filter components and is therefore easy to use
and offers lower system costs and reduced
board area. The FDC37B80x is software and
register compatible with SMSC's proprietary
82077AA core.
IBM, PC/XT and PC/AT are registered trademarks and PS/2 is a trademark
of International Business Machines Corporation
SMSC is a registered trademark and Ultra I/O, ChiProtect, and Multi-Mode
are trademarks of Standard Microsystems Corporation
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