F81218
4~7
PCI5V
ISA_A[3:0]
LPC_A[3:0]
ISA address bus bit 0-3.
When in LPC mode, these pins become LPC to ISA address
output.
8
ISA_IOR
LPC_IOR
ISA_IOW
LPC_IOW
INt5V
CPU I/O read signal.
When in LPC mode, these pin becomes LPC to ISA IOR output.
CPU I/O write signal.
OD12
INt5V
9
When in LPC mode, these pin becomes LPC to ISA IOW output.
ISA address bus bits 7-10.
OD12
11~14
ISA_A[10:7]
PCI5V
LPC_LAD[3:0]
When in LPC mode, these signal lines communicate address,
control, and data information over the LPC bus between a host
and a peripheral.
15
16
ISA_A6
INts5V
ISA address bus bit 6
LPC_PCICLK
ISA_A5
In LPC mode, this pin acts as PCI clock input.
ISA address bus bit 5
INts5V
LPC_LFRAME#
In LPC mode, indicates start of a new cycle or termination of a
broken cycle.
17
ISA_A4
PCI5V
PCI5V
ISA address bus bit 4.
LPC_SERIRQ
ISA_D[7:0]
LPC_D[7:0]
In LPC mode, Serial IRQ input/Output.
ISA data bus bits 0-7
19~26
When in LPC mode, the pins become LPC to ISA data bus bits
0-7.
27
45
CLKIN
IN
System clock input. According to the input frequency 24MHz or
48MHz, it is selectable through register. Default is 24MHz
input.
t
ISA_IRQE
O12
Default is ISA IRQ output, can act as GPIO function by
programming register. About IRQ index setting please refer to
pin67.
GP15
When in LPC mode, this pin acts as GPIO function
IN t5V
O12
44
ISA_IRQF
Default is ISA IRQ output, can be GPIO by programming
register. About IRQ index setting please refer to pin33.
GP16
When in LPC mode, this pin acts as GPIO function
IN t5V
-4-
August, 2007
V0.33P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
