F71858A数据手册FINTEK中文资料规格书

描述 Description

The F71858AD is hardware KBC integratingthe ACPI, temperature sensing and fan control functionsspecific for the legacy free MB application.  The KBC functions include one keyboard and one PS/2 mouse, and can be used with IBMÒ-compatible personal computers or PS/2-based systems. The controller receives serial data from the keyboard or PS/2 mouse, checks the parity of the data, and presents the data to the system as a byte of data in its output buffer. The controller will assert an interrupt to the system when data are placed in its output buffer. (1)The F71858AD provides the ACPI control signals as well such as S3 state, resume reset, 12 pins GPIO, WDT, PCI reset outputs or power OK signals.  The power LED is programmable and compliant with PC2001.  (1)As to the environment sensing functions, F71858AD provides 2 remote analog dual current temp. sensing inputs and one internal local temperature sensing.  One HW_IRQ (alert signal) will be issued while the temperature is over the programmable limit.  4 fan monitoring inputs and 3 fan controlling outputs provide Fintek’s patented auto-fan controlling features. Besides, the F71858AD supports AMD TSI and Intel PECI/SST interfaces for next generation CPU temp. sensing technology.  (1)F71858AD is in LPC interface and powered by 3VCC, 3V standby, and battery.  The package is in 48 pin LQFP Green Package. (1)(1)

特性 Features

General Functions
          -    Comply with LPC Spec. 1.1
          -    Hardware Keyboard Controller support one PS/2 keyboard and one PS/2 mouse
          -    Hardware Gate A20 and Hardware Keyboard Reset
          -    Support ACPI 3.0
          -    12 GPIO Pins
          -    WDT signal
          -    HWM functions (Also support PECI fan control mechanism)
KBC
          -    LPC interface support serial interrupt channel 1, 12. 
          -    Two 16bit Programmable Address fully decoder, default 0x60 and 0x64.
          -    Support two PS/2 interface, one for PS/2 mouse and the other for keyboard.
          -    Keyboard’s scan code support set1, set2.
          -    Programmable compatibility with the 8042.
          -    Support both interrupt and polling modes.
          -    Hardware Gate A20 and Hardware Keyboard Reset.
ACPI Functions
          -    1 reset input and 5 PCI reset output pins
          -    2 programmable power LED
          -    S3Gate control
          -    Resume reset
          -    Power ok signal
Hardware Monitor Functions
          -    2 current type accurate (3℃) thermal inputs for CPU thermal diode/2N3906 transistors
          -    One internal local thermal sensor 
          -    Pin HW_IRQ# (default limit 100°C for CPU temp.)
          -    Temperature sensing range from -40℃~127℃
          -    4 fan speed monitoring inputs
          -    3 fan speed auto-control (support 3 wire and 4 wire fans)
          -    Support PWM and DAC mode control
          -    Default PWM duty is 40% when system boot up promptly
          -    Provide Intel PECI/SST interface for temperature sensing
          -    Provide AMD TSI interface for temperature sensing
          -    Support 3 channels voltage monitor ( VCC3V + VSB3V + VBAT)
          -    Voltage monitor resolution is 8mV per LSB
GPIO Function
          -    Total 12 pins GPIO
          -    GPIO supports interrupt event by PME/SERIRQ
Watch Dog Timer
          -    Time resolution minute/second by option
          -    Maximum 256 minutes or 256 seconds
          -    Output WDT signal via PWOK pin
Package
          -    48-pin LQFP
48-LQFP Green Package