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SCH3112 Datasheet(PDF) 1 Page - SMSC Corporation

Part # SCH3112
Description  LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

SCH3112 Datasheet(HTML) 1 Page - SMSC Corporation

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SMSC SCH311X
PRODUCT PREVIEW
Revision 1.1 (06-05-07)
Data Brief
PRODUCT FEATURES
SCH3112, SCH3114, SCH3116
LPC IO with 8042 KBC,
Reset Generation, HWM
and Multiple Serial
Ports
General Features
3.3 Volt Operation (SIO Block is 5 Volt Tolerant)
Low Pin Count Bus (LPC) Interface
Programmable Wake-up Event (PME) Interface
PC99, PC2001 Compliant
ACPI 2.0 Compliant
Serial IRQ Interface Compatible with Serialized IRQ
Support for PCI Systems
ISA Plug-and-Play Compatible Register Set
Four Address Options for Power On Configuration Port
System Management Interrupt (SMI)
40 General Purpose I/O pins
6 GPIO with VID compatible inputs
Support for power button on PS/2 Keyboard
Security Key Register (32 byte) for Device
Authentication
Watchdog Timer
Resume and Main Power Good Generator
Programmable Clock Output to 16 HZ.
2.88MB Super I/O Floppy Disk Controller
Licensed CMOS 765B Floppy DiskController
Supports Two Floppy Drives
Configurable Open Drain/Push-Pull
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 Eight IRQ and Four DMA Options
Support FDD Interface on Parallel Port Pins
Enhanced Digital Data Separator
2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbp 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
Phoenix Keyboard BIOS ROM
Multiple Serial Ports
SCH3112 - 2 Full Function Serial Ports
SCH3114 - 4 Full Function Serial Ports
SCH3116 - 4 Full Function and 2 Four-Pin Serial Ports
High Speed NS16C550A Compatible UARTs with
Send/Receive 16-Byte FIFOs
Supports 230k, 460k, 921k and 1.5M Baud
Programmable Baud Rate Generator
Modem Control Circuitry
480 Address and 15 IRQ Options
Support IRQ Sharing among serial ports
RS485 Auto Direction Control Mode
Infrared Port
Multiprotocol Infrared Interface
IrDA 1.0 Compliant
SHARP ASK IR
480 Addresses, Up to 15 IRQ
Multi-Mode™ Parallel Port with ChiProtect™
Standard Mode IBM PC/XT®, PC/AT®, and PS/2™
Compatible Bi-directional 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
960 Address, Up to 15 IRQ and Four DMA Options
Hardware Monitor
Monitor Power supplies (+2.5V, +5V, +12V, Vccp
(processor voltage), VCC, Vbat and Vtr.
Remote Thermal Diode Sensing for Two External
Temperature Measurements accurate to 1.5oC
Internal Ambient Temperature Measurement
Limit Comparison of all Monitored Values
Programmable Automatic FAN control based on
temperature
nHWM_INT Pin for out-of-limit Temperature or Voltage
Indication
Thermtrip signal for over temperature indication
IDE Reset Output and 3 PCI Reset Buffers with
Software Control Capability (SCH3112 and SCH3114
Only)
Power Button Control and AC Power Failure
Recovery (SCH3112 and SCH3114 Only)
Temperature Range Available
— Industrial (+85
°C to -40°C)
— Commercial (+70
°C to 0°C)
128 Pin VTQFP Lead-free RoHS Compliant Package


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