Data Brief and Design Tools

Features

	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
	Watch Dog 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 Disk Controller 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 Power Down 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 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 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 NS16C550 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 1.5°C 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

Data Brief and Design Tools

Description	File Name	File Size	Date
SCH311x Data Brief	311xdb.pdf	487K	6/5/07