F81216
6.6.3 I/O Port Select Register – index 61h
Power-on default [7:0] = 0x42h when DTR3#/PS_WDT is pull-up, else 0x00h.
Bit
7:0
Name
R/W
Description
WDT_BASE[7:0]
R/W
I/O Base low byte.
6.6.4 IRQ Channel Select Register – index 70h
Power-on default [7:0] = 0x00h.
Bit
7:5
Name
Reserved
WDTIRQ_EN
R/W
R/W
R/W
Description
Return 0 when read.
4
0 : Time out is asserted only via WDT_OUT#.
1 : Time out is asserted via IRQ and WDT_OUT#.
In LPC mode , select the Serial IRQ channel.
In ISA mode , select one of six IRQ pins .
3:0
SELWDTIRQ[3:0] R/W
03h : use serial IRQ channel 3 in LPC mode or use ISA_IRQA in ISA
mode.
04h : use serial IRQ channel 4 in LPC mode or use ISA_IRQB in ISA
mode.
05h : use serial IRQ channel 5 in LPC mode or use ISA_IRQC in ISA
mode.
09h : use serial IRQ channel 9 in LPC mode or use ISA_IRQD in ISA
mode.
0Ah : use serial IRQ channel 10 in LPC mode or use ISA_IRQE in
ISA mode.
0Bh : use serial IRQ channel 11 in LPC mode or use ISA_IRQF in
ISA mode.
Otherwise will disable the interrupt.
6.6.5 Timer Status and Control Register – index F0h
Power-on default [7:0] = 0x02h when DTR3#/PS_WDT is pull-up , else 0x00h.
Bit
7:3
2:1
Name
Reserved
WDT_UNIT[1:0]
R/W
R/W
R/W
Description
Return 0 when read.
00 : Timer Unit is 10ms.
01 : Timer Unit is 1 second
-27-
August, 2007
V0.32P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
