F71889
General Description

The F71889 which is the featured IO chip for new generational PC system is equipped with one IEEE 1284 parallel port,two UARTports, KBC, Serial Peripheral Interface (SPI), 80-Port, SIR, VID controller and one FDC. The F71889 integrated with hardware monitor, 9 sets of voltage sensor, 3 sets of creative auto-controlling fans and 3 temperature sensor pins for the accurate dual current type temp. measurement for CPU thermal diode or external transistors 2N3906.

The F71889 provides flexible features for multi-directional application. For instance, supports Bus Interface pins, provides 59 GPIO pins (multi-pin), IRQ sharing function also designed in UART feature for particular usage and accurate current mode H/W monitor will be worth in measurement of temperature, provides 3 modes fan speed control mechanism included Manual Mode/Speed Mode/Temperature Mode for users’ selection.

Additionally, integrated SPI interface, 80-Port, and 5VDUAL voltage switch switch and adjustable voltage reference outputs related functions. The SPI interface is for BIOS usage including bridge function (Supports up to 16M), and the 80-Port is for engineering and debuging usage. F71889 also provides 5V dual controller and some voltage reference outputs for system application. Others, the F71889 supports newest AMD new interface TSI and Intel PECI 1.1/SST interfaces for temperature reading. These features will help you more and improve product value. Finally, the F71889 is powered by 3.3V voltage, with the LPC interface in the package of 128-QFP green package.

  • FEATURES
  • PACKAGE
  • ATTACHMENTS
  • General Functions

                    -       Comply with LPC Spec. 1.1

                    -       Support DPM (Device Power Management), ACPI

-       Bus Interface for CPU use

-       Provides one FDC, two UARTs, KBC and Parallel Port

-       16 pins VID controller for VRM 11.x and OTF

-       Serial VID controller with CORE_TYPE input for AMD Processor

-       H/W monitor functions

-       Reference voltage outputs support

-       5VDUAL voltage switch

-       SPI interface for BIOS Bridge

-       80-Port interface from LPT or COM2

-       Support AMD TSI interface and Intel SST/PECI interface

-       PECI Spec.1.1 ready

-       Support Ibex protocol SMBus interface

-       59 GPIO Pins for flexible application    

-       24/48 MHz clock input

-       Packaged in 128-PQFP green package and powered by 3.3VCC

  • 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 under run conditions

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

-       Completely compatible with industry standard 82077

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

  • UART

-       Two high-speed 16C550 compatible UART with 16-byte FIFOs

-       Fully programmable serial-interface characteristics

-       Baud rate up to 115.2K

-       Support IRQ sharing

  • Infrared

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

  • Parallel Port

-       One 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

-       Enhanced printer port back-drive current protection

  • Keyboard Controller

-       Compatibility with the 8042

-       Support PS/2 mouse

-       Support both interrupt and polling modes

-       Hardware Gate A20 and Hardware Keyboard Reset

  • Hardware Monitor Functions

-       3 dual current type (±3ºC) thermal inputs for CPU thermal diode and 2N3906 transistors

-       Temperature range -40ºC ~127ºC

-       9 sets voltage monitoring (6 external and 3 internal powers)

-       High limit signal (PME#) for Vcore level

-       3 fan speed monitoring inputs

-       3 fan speed PWM/DC control outputs(support 3 wire and 4 wire fans)

-       Issue PME# and OVT# hardware signals output

-       Case intrusion detection circuit

-       WATCHDOG# comparison of all monitored values

  • Serial Peripheral Interface Compatible

-       Support SPI bridge function for BIOS use

-       Up to 16M bit Support

  • 80-Port Interface

-       Monitor 0x80 Port and output the value via signals defined for 7-segment display.

-       High nibble and low nibble are outputted interleaved at 1KHz frequency.

-       80-Port output by LPT or COM2 interface.

  • 8-IN and 8-OUT VID Controller for VRM11.x and OTF
  • Serial VID Controller with CORE_TYPE Input for AMD CPU application
  • Integrate AMD TSI interface
  • Integrate Intel PECI 1.1 /SST interface
  • Support Ibex Protocol SMBus interface
  • Support FSB over clocking control bus
  • 5V Dual Voltage Switch

-       Provide ACPI-compliant 5VDUAL voltage switch

-       5VDUAL for USB/Keyboard/Mouse application

  • Adjustable Voltage Reference Outputs

-       Enable pin for VREF2 and 3 Voltage Reference Output control

-       0.9V default output on VREF1~3 pins

-       Adjustable voltage range from 0~2.295V

  • Package

-       128-pin PQFP green package

128-QFP Green Package
If you are interested in obtaining the most updated information, please contact us at marketing@fintek.com.tw
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