F81801数据手册FINTEK中文资料规格书

描述 Description

The F81801 which is the featured IO chip for new generational PC system is equipped with two UARTports, KBC, Serial Peripheral Interface (SPI), and 80-Port. The F81801 integrated with hardware monitor, 2 sets of voltage sensor, 2 sets of creative auto-controlling fans and 2 temperature sensor pins for the accurate dual current type temp. measurement for CPU thermal diode or external transistors 2N3906.(1)The F81801 provides flexible features for multi-directional application. For instance, provides 16 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 2 modes fan speed control mechanism included Manual Mode/Speed Mode/Temperature Mode for users’ selection.(1) Additionally SPI interface is for BIOS usage including bridge function and back up function (Supports up to 16M and provides Mapping selection), and the 80-Port is for engineering and debuging usage. The F81801 supports newest AMD new interface TSI and Intel PECI 1.1/SST interfaces for temperature reading. Finally, the F81801 is powered by 3.3V voltage, with the LPC interface in the package of 64-TQFP green package.(1)(1)

特性 Features

General Functions-    Comply with LPC Spec. 1.1
-    Support ACPI
-    Provides two UARTs,
-    Support KBC  
-    H/W monitor functions
-    SPI interface for BIOS Bridge and backup use.
-    Support Mapping selection for BIOS backup function
-    80-Port interface from COM2
-    Support AMD TSI interface and Intel SST/PECI interface
-    PECI
-    16 GPIO Pins for flexible application    
-    24/48 MHz clock input
-    Packaged in 64-TQFP green package and powered by 3.3VCC
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
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            -    2 dual current type (±3℃) thermal inputs for CPU thermal diode
            -    Temperature range -40℃~127℃
            -    2 sets voltage monitoring
            -    High limit signal (PME#) for Vcore level
            -    2 fan speed monitoring inputs
            -    2 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
            -    Support Back Up BIOS function
            -    Up to 16M bit Support
            -    Mapping Selection function
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 COM2 interface.
Integrate AMD TSI interface
Integrate Intel PECI 1.1 /SST interface
Package
            -    64-TQFP green package
      Noted: Patented TW207103 TW207104 TW220442 US6788131 B1 TWI235231 TW237183 TWI263778
64-TQFP Green Package