W83627F-AW

Winbond LPC I/O

GENERAL DESCRIPTION

The W83627HF and W83627F are evolving product fromWinbond"s most popular I/O family. They

feature a whole new interface, namely LPC（Low Pin Count）interface, which will be supported in the next generation Intel chip-set. This interface as its name suggests is to provide an economical implementation of I/O"s interface with lower pin countand still maintains equivalent performance as its ISA interface counterpart. Approximately 40 pin counts are saved in LPC I/O comparing to ISA implementation. With this additional freedom, we can implement more devices on a single chip as demonstrated in W83627F/HF"s integration of Game Port and MIDI Port.It is fully transparentin terms of software which means no BIOS or device driver update is needed except chip-specific configuration.

FEATURES

General

• Meet LPC Spec. 1.0

•Support LDRQ#（LPC DMA）, SERIRQ （serial IRQ）

• Include all the features of Winbond I/O W83977TF and W83977EF

• Integrate Hardware Monitor functions

• Compliant with Microsoft PC98/PC99 Hardware Design Guide

•Support DPM （Device Power Management）, ACPI

• Programmable configuration settings

• Single 24 or 48 MHz clock input

FDC

• Compatible with IBM PC AT disk drive systems

• Variable write pre-compensation with track selectable capability

• Support vertical recording format

• DMA enable logic

• 16-byte data FIFOs

• Support floppy disk drives and tape drives

• Detects all overrun and underrun conditions

• Built-in address mark detection circuit to simplify the read electronics

• FDD anti-virus functions with software write protect and FDD write enable signal （write data

signal was forced to be inactive）

• Support up to four 3.5-inch or 5.25-inch floppy disk drives

• Completely compatible with industry standard 82077

• 360K/720K/1.2M/1.44M/2.88M format; 250K, 300K, 500K, 1M, 2M bps data transfer rate

• Support 3-mode FDD, and its Win95/98 driver

UART

• Two high-speed 16550 compatible UARTs with 16-byte send/receive FIFOs

•MIDI compatible

• Fully programmable serial-interface characteristics：

─5, 6, 7 or 8-bit characters

─Even, odd or no parity bit generation/detection

─1, 1.5 or 2 stop bits generation

• Internal diagnostic capabilities：

─Loop-back controls for communications link fault isolation

─Break, parity, overrun, framing error simulation

• Programmable baud generator allows division of 1.8461 MHz and 24 MHz by 1 to （216-1）

• Maximum baud rate up to 921k bps for 14.769 MHz and 1.5M bps for 24 MHz

Infrared

• Support IrDA version 1.0 SIR protocol with maximum baud rate up to 115.2K bps

Parallel Port

• Compatible with IBM parallel port

• Support PS/2 compatible bi-directional parallel port

• Support Enhanced Parallel Port（EPP）−Compatible with IEEE 1284 specification

• Support Extended Capabilities Port（ECP）−Compatible with IEEE 1284 specification

• Extension FDD mode supports disk drive B; and Extension 2FDD mode supports disk drives A

and B through parallel port

• Enhanced printer port back-drive current protection

Keyboard Controller

• 8042 based with optional F/W from AMIKKEYTM -2,or customer code with 2K bytes of program

mable ROM, and 256 bytes of RAM

• Asynchronous Access to Two Data Registers and One status Register

• Software compatibility with the 8042

• Support PS/2 mouse

• Support port 92

• Support both interrupt and polling modes

• Fast Gate A20 and Hardware Keyboard Reset

• 8 Bit Timer/ Counter

• Support binary and BCD arithmetic

• 6 MHz, 8 MHz, 12 MHz, or 16 MHz operating frequency

Game Port

• Support two separate Joysticks

• Support every Joystick two axis （X,Y）and two button （A,B）controllers

MIDI Port

• The baud rate is 31.25 Kbaud

• 16-byte input FIFO

• 16-byte output FIFO

General Purpose I/O Ports

• 22 programmable general purpose I/O ports

• General purpose I/O ports can serve as simple I/O ports, interrupt steering inputs, watch dog

timer output, power LED output, infrared I/O pins, KBC control I/O pins, suspend LED output,

RSMRST# signal, PWROK signal, Beep output

• Functional in power down mode （GP1 only） OnNow Functions

• Keyboard Wake-Up by programmable keys

• Mouse Wake-Up by programmable buttons

• CIR Wake-Up by programmable keys

• On Now Wake-Up from all of the ACPI sleeping states （S1-S5）

Hardware Monitor Functions （Only for W83627HF）

• 5 VID input pins for CPU Vcore identification

• 3 thermal inputs from optionally remote thermistors or 2N3904 transistors or PentiumTM II

（Deschutes）thermal diode output

• 7 positive voltage inputs （typical for +12V, -12V, +5V, -5V, +3.3V, VcoreA, VcoreB）

• 2 intrinsic voltage monitoring （typical for Vbat, +5VSB）

• 3 fan speed monitoring inputs

• 2 fan speed control

• Build in Case open detection circuit

• WATCHDOG comparison of all monitored values

• Programmable hysteresis and setting points for all monitored items

• Over temperature indicate output

• Automatic Power On voltage detection Beep

• Issue SMI#, IRQ, OVT# to activate system protection

•Intel LDCMTM / Acer ADMTM compatible

Package

• 128-pin PQFP