W83877TF Datasheet, PDF (144/154 Pages) Winbond – I/O chip disk drive adapter

W83877TF
Bit
Name
0
TMR_EN
1-4 Reserved
5
GBL_EN
6-7 Reserved
Description
This is the timer carry interrupt enable bit. When this bit is set then an SCI
event is generated anytime the TMR_STS bit is set. When this bit is reset
then no interrupt is generated when the TMR_STS bit is set.
Reserved. These bits always return a value of zero.
The global enable bit. When both the GBL_EN bit and the GBL_STS bit are
set, an SCI interrupt is raised.
Reserved.
8.4.4 Power Management 1 Enable Register 2 (PM1EN2)
Register Location:
<CR33>+3H System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
765
43
21
0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Bit
Name
Description
0-7 Reserved Reserved. These bits always return a value of zero.
8.4.5 Power Management 1 Control Register 1 (PM1CTL1)
Register Location:
<CR33>+4H System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
- 118 -
Publication Release Date: March 1998
Version 0.61