W83877TF/W83877TG
-120 -
1
2
34567
0
URBSCIEN
URASCIEN
FDCSCIEN
PRTSCIEN
Reserved
Reserved
Reserved
Reserved
These bits are used to enable the device's IRQ sources onto the SCI logic. The SCI logic output for
the IRQs is as follows:
SCI logic output = (URBSCIEN and URBSCISTS) or (URASCIEN and URASCISTS) or (FDCSCIEN
and FDCSCISTS) or (PRTSCIEN and PRTSCISTS)
BIT NAME DESCRIPTION
0 URBSCIEN UART B SCI enable, which controls the UART B IRQ for SCI.
1 URASCIEN UART A SCI enable, which controls the UART A IRQ for SCI.
2 FDCSCIEN FDC SCI enable, which controls the FDC IRQ for SCI.
3 PRTSCIEN printer port SCI enable, which controls the printer port IRQ for SCI.
4-7 Reserved Reserved.
11.4.16 General Purpose Event 0 Enable Register 2 (GP0EN2)
Register Location: <CR34>+3H System I/O Space
Default Value: 00h
Attribute: Read/write
Size: 8 bits
1
2
34567
0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
BIT NAME DESCRIPTION
0-7 Reserved Reserved. These bits always return a value of zero.