FT8U100AX datasheet(21/25 Pages) FTDI

Part #	FT8U100AX

Description	FT8U100AX Seven Port USB Hub Controller with Embedded Peripheral Functions

PDF	25 Pages

Scroll/Zoom	100%

Manufacturer	FTDI [Future Technology Devices International Ltd.]

Direct Link	http://www.ftdichip.com

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21 / 25 page

Future Technology Devices Intl.

FT8U100AX Product Data Rev 0.90

Page 21

IRQ Source Register

Address = DFh r/o

Bit - 0 timer

Bit - 1 serial 1

Bit - 2 serial 2

Bit - 3 SIE

Bit - 4 HUB

Bit - 5 PS/2 Keyboard

Bit - 6 USB Port

Bit - 7 Generic two wire serial interface

PS/2 Keyboard/mouse Control ports

Address = F4h r/w

Write:

bit 0 - set output shift register to load

bit 1 - set output shift register to shift

bit 2 - invert keyboard clock coming in

bit 3 - reset input shift register and keyboard clock disable

bit 4 - 0 resets port60wr interrupt signal

bit 5 - 0 resets port64wr interrupt signal

bit 6 - 0 resets keyboard send interrupt signal

bit 7 -

Read:

bit 0 - keyboard clock line in

bit 1 - keyboard data line in

bit 2 - Output Buffer Full status 64 bit 0

bit 3 - Input Buffer Full status 64 bit 1

bit 4 - port60wr interrupt signal

bit 5 - port64wr interrupt signal

bit 6 – keyboard send interrupt signal

bit 7 -

FT8U100AX Datasheet(PDF) 21 Page - Future Technology Devices International Ltd.