sch3112 Standard Microsystems Corp., sch3112 Datasheet

sch3112

Manufacturer Part Number

sch3112

Description

Lpc Io With 8042 Kbc, Reset Generation, Hwm And Multiple Serial Ports Data Brief

Manufacturer

Standard Microsystems Corp.

Datasheet

1.SCH3112.pdf (6 pages)

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PRODUCT FEATURES

SMSC SCH311X

General Features

Watchdog Timer

Resume and Main Power Good Generator

Programmable Clock Output to 16 HZ.

2.88MB Super I/O Floppy Disk Controller

Enhanced Digital Data Separator

Keyboard Controller

— 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

— 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

— 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

— 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

— 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbp Data

— Programmable Precompensation Modes

— 8042 Software Compatible

— 8 Bit Microcomputer

— 2k Bytes of Program ROM

— 256 Bytes of Data RAM

— Four Open Drain Outputs Dedicated for

— Asynchronous Access to Two Data Registers and One

— Supports Interrupt and Polling Access

— 8 Bit Counter Timer

— Port 92 Support

— Fast Gate A20 and KRESET Outputs

— Phoenix Keyboard BIOS ROM

Support for PCI Systems

Authentication

Multiple Powerdown Modes for Reduced Power

Consumption

Rates

Keyboard/Mouse Interface

Status Register

PRODUCT PREVIEW

Multiple Serial Ports

Infrared Port

Multi-Mode™ Parallel Port with ChiProtect™

Hardware Monitor

IDE Reset Output and 3 PCI Reset Buffers with

Power Button Control and AC Power Failure

Temperature Range Available

128 Pin VTQFP Lead-free RoHS Compliant Package

— 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

— Multiprotocol Infrared Interface

— IrDA 1.0 Compliant

— SHARP ASK IR

— 480 Addresses, Up to 15 IRQ

— Standard Mode IBM PC/XT

— Enhanced Parallel Port (EPP) Compatible - EPP 1.7

— IEEE 1284 Compliant Enhanced Capabilities Port

— ChiProtect Circuitry for Protection

— 960 Address, Up to 15 IRQ and Four DMA Options

— Monitor Power supplies (+2.5V, +5V, +12V, Vccp

— Remote Thermal Diode Sensing for Two External

— Internal Ambient Temperature Measurement

— Limit Comparison of all Monitored Values

— Programmable Automatic FAN control based on

— nHWM_INT Pin for out-of-limit Temperature or Voltage

— Thermtrip signal for over temperature indication

Software Control Capability (SCH3112 and SCH3114

Only)

Recovery (SCH3112 and SCH3114 Only)

— Industrial (+85°C to -40°C)

— Commercial (+70°C to 0°C)

LPC IO with 8042 KBC,

Reset Generation, HWM

and Multiple Serial

Ports

SCH3112, SCH3114, SCH3116

Compatible Bi-directional Parallel Port

and EPP 1.9 (IEEE 1284 Compliant)

(ECP)

(processor voltage), VCC, Vbat and Vtr.

Temperature Measurements accurate to 1.5

temperature

Indication

®,

PC/AT

Revision 1.1 (06-05-07)

, and PS/2™

Data Brief

Related parts for sch3112

sch3112 Summary of contents

Page 1

... Reset Generation, HWM and Multiple Serial Ports 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 — ...

Page 2

... SCH3114i-NU FOR 128 PIN, VTQFP PACKAGE (LEAD-FREE, ROHS COMPLAINT - INDUSTRIAL TEMPERATURE RANGE) SCH3116i-NU FOR 128 PIN, VTQFP PACKAGE (LEAD-FREE, ROHS COMPLAINT - INDUSTRIAL TEMPERATURE RANGE) SCH3112-NU FOR 128 PIN, VTQFP PACKAGE (LEAD-FREE, ROHS COMPLAINT - COMMERCIAL TEMPERATURE RANGE) SCH3114-NU FOR 128 PIN, VTQFP PACKAGE (LEAD-FREE, ROHS COMPLAINT - COMMERCIAL TEMPERATURE RANGE) ...

Page 3

... LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports General Description The SCH3112/SCH3114/SCH3116 Product Family is a 3.3V (Super I/O Block is 5V tolerant) PC99/PC2001 compliant Super I/O controller with an LPC interface. The SCH3112/SCH3114/SCH3116 Product Family also includes Hardware Monitoring capabilities, enhanced Security features, Power Control logic and Motherboard Glue logic ...

Page 4

... FUNCTION SCH3112 LPC Bus Interface Legacy functional ( ) Blocks 1. Floppy on Parallel Port Option Reset Generator Serial Ports Programmable Clock Output IDE / PCI Reset Outputs Power Button / AC Fail Support GPIOs GPIO with VID Compatible Inputs Dedicated GPIOs Hardware Monitor 1. Legacy Blocks include floppy disk, parallel port, watchdog timer and keyboard controller 2 ...

Page 5

... PCI Reset nPCIRST[1:3] Outputs MCLK, MDAT Keyboard/Mouse A20M, 8042 nKBDRST, controller KCLK,KDAT PB_IN# Power Control PS_ON# and Recovery SLP_SX# PB_OUT# TXD5, RXD5 High-Speed nSCIN5 16550A nSCOUT5 UART TXD6, RXD6 PORT 5 & 6 nSCIN6 nSCOUT6 SCH3112, SCH3114 ONLY SCH3114, SCH3116 ONLY SCH3116 ONLY Revision 1.1 (06-05-07) ...

Page 6

Package Outline E1 TOP VIEW SEE DETAIL "A" SIDE VIEW 3-D VIEW Figure 2 128 Pin VTQFP Package Outline; 14x14x1.0 Body, 2mm Footprint GAUGE PLANE ...

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