General Description
The F81865 is the featured IO chip for Industrial PC system. Equipped with one IEEE 1284 parallel port, 6 UART ports with 9-bit protocol, KBC, Serial Peripheral Interface (SPI), SIR and one FDC. The F81865 integrated with hardware monitor, 7 sets of voltage sensor, 2 sets of creative auto-controlling fans and 2 temperature sensor pins for the accurate dual current type temperature measurement for CPU thermal diode or external transistors
2N3906.

General Functions
Comply with LPC 1.1
Support ACPI 3.0
Provides one FDC, KBC and Parallel Port
Provide 6 fully functional UART and 1 SIR
9-bit Protocol for UARTs
Support IRQ Sharing function.
H/W monitor functions
SPI interface for BIOS
RTC function
Support PECI 1.0 interface
53 GPIO Pins for flexible application
24/48 MHz clock input
Packaged in 128-PQFP and powered by 3.3VCC