SCH3112_07 Datasheet, PDF (1/6 Pages) SMSC Corporation – LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports

SCH3112, SCH3114, SCH3116
LPC IO with 8042 KBC,
Reset Generation, HWM
and Multiple Serial
Ports
PRODUCT FEATURES
Data Brief
„ 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 1.5^oC
— 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
SMSC SCH311X
PRODUCT PREVIEW
Revision 1.1 (06-05-07)