F85226 Datasheet, PDF (24/44 Pages) Feature Integration Technology Inc. – LPC to ISA Bridge

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Feature Integration Technology Inc.
F85226
8.8 GPIO Port Define Register (High byte)– Index 12h
Power-on default [7:0] =0000_0000b
Bit
Name
R/W PWR
Description
7-0 GP_ADDR[15:8]
R/W
VDD3V
User defines port address to control GPIO functions. To control GPIO state
without entry configure mode. (If GPIO no enable “CR10 bit0”, This register will
read only).
For example: if define GP_ADDR 0x150 in CR11 and CR12t.
If(GPIO output ctrl (REG 0x15, 0x18) set to output mode then:
-o 150 aa (10101010b) to set GP17, GP15, GP13 and GP11 to High.
-o 150 55 (01010101 b) to set GP16, GP14, GP12 and GP10 to High.
-o 151 aa (10101010b) to set GP23 and GP21 to High.
-o 151 55 (01010101 b) to set GP22 and GP20 to High.
If(GPIO output ctrl (REG 0x15, 0x18) set to input mode then:
-i 150 ------ show pin states of GP1[7..0].
-i 151 ------ show pin states of GP2[3..0].
8.9 Address Decoder Register (I) – Index 013h
Power-on default [7:0] =1111_1111b
Bit
Name
R/W PWR
Description
7-4 DECODER_SEL2 R/W
3-0 DECODER_SEL1 R/W
VDD3V
VDD3V
Select GPIO pin to be GPCS2# that define decode address by CR21, 22. (If GPIO
no enable “CR10 bit0”, This register will read only).
0000: if decode_sel2 set to 0x0h the GPCS2 will output from pin GP10.
0011: if decode_sel2 set to 0x3h the GPCS2 will output from pin GP13.
0100: if decode_sel2 set to 0x4h the GPCS2 will output from pin GP14.
0101: if decode_sel2 set to 0x5h the GPCS2 will output from pin GP15.
1000: if decode_sel2 set to 0x8h the GPCS2 will output from pin GP20.
1001: if decode_sel2 set to 0x9h the GPCS2 will output from pin GP21.
1010: if decode_sel2 set to 0xAh the GPCS2 will output from pin GP22.
1011: if decode_sel2 set to 0xBh the GPCS2 will output from pin GP23.
Default : disable.
Select GPIO pin to be GPCS2# that define decode address by CR24, 25. (If GPIO
no enable “CR10 bit0”, This register will read only).
0000: if decode_sel1 set to 0x0h the GPCS1 will output from pin GP10.
0011: if decode_sel1 set to 0x3h the GPCS1 will output from pin GP13.
0100: if decode_sel1 set to 0x4h the GPCS1 will output from pin GP14.
0101: if decode_sel1 set to 0x5h the GPCS1 will output from pin GP15.
1000: if decode_sel1 set to 0x8h the GPCS1 will output from pin GP20.
F85226
19
July, 2007
V0.25P