W83877TF Datasheet, PDF (150/154 Pages) Winbond – I/O chip disk drive adapter

W83877TF
8.4.14 General Purpose Event 0 Status Register 2 (GP0STS2)
Register Location:
<CR34>+1H System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
765
43
21
0
Bit
Name
0-7 Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Description
Reserved. These bits always return a value of zero.
8.4.15 General Purpose Event 0 Enable Register 1 (GP0EN1)
Register Location:
<CR34> +2H System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
765
43
21
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)
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Publication Release Date: March 1998
Version 0.61