w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 130

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

12.3.13 General Purpose Event 0 Status Register 1 (GP0STS1)
Register Location:
Default Value:
Attribute:
Size:
These bits indicate the status of the SCI input, which is set when the device's IRQ is raised. If the
corresponding enable bit in the SCI interrupt enable register (in GP0EN1) is set, an SCI interrupt is
raised and routed to the output pin. Writing a 1 clears the bit, and writing a 0 has no effect. If the bit is
not cleared, new IRQ to the SCI logic input is ignored and no SCI interrupt will be raised.
12.3.14 General Purpose Event 0 Status Register 2 (GP0STS2)
Register Location:
Default Value:
Attribute:
Size:
0
1
2
3
4
5
6
7
BIT
URBSCISTS
URASCISTS
FDCSCISTS
PRTSCISTS
KBCSCISTS
MOUSCISTS
IRSCISTS
Reserved
NAME
<CR62, 63> System I/O Space
00h
Read/write
8 bits
UART B
UART A
FDC
PRT
KBC
MOUSE
IR
Reserved.
<CR62, 63> + 1H System I/O Space
00h
Read/write
8 bits
7
SCI
SCI
SCI
SCI
6
status, which is set by the IR IRQ.
SCI
SCI
SCI
status, which is set by the printer port IRQ.
status, which is set by the FDC IRQ.
status, which is set by the KBC IRQ.
5
status, which is set by the MOUSE IRQ.
status, which is set by the UART B IRQ.
status, which is set by the UART A IRQ.
4
3
- 122 -
2
DESCRIPTION
W83977ATF/W83977ATG
1
0
URBSCISTS
URASCISTS
FDCSCISTS
PRTSCISTS
KBCSCISTS
MOUSCISTS
IRSCISTS
Reserved