w83877atd Winbond Electronics Corp America, w83877atd Datasheet - Page 127

• Manufacturer Part Number: w83877atd
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

The corresponding power-on setting pin is NRTSA (pin 36).
Note: The new value of PNPCVS must be complementary to the old one to make an effective change. For example, the user
set PNPCVS to 1 first and then reset it to 0 to reset these PnP registers if the present value of PNPCVS is 0.
Bit 1: Reserved.
HEFRAS (Bit 0): combines with HEFERE (bit 5 of CR0C) to define how to access Extended Function
8.2.23 Configuration Register 17 (CR17), default = 00H
When the device is in Extended Function mode and EFIR is 17H, the CR17 register can be accessed
through EFDR. The bit definitions are as follows:
Bit 7-bit 5: Reserved.
PnP register
CR20
CR23
CR24
CR25
CR26
CR27
CR28
CR29
Registers (refer to bit 5 of CR0C description). The corresponding power-on setting
pin is NDTRA (pin 35).
7
PNPCVS = 1
6
DEH
FCH
FEH
BEH
23H
05H
43H
60H
5
4
3
- 123 -
2
PNPCVS = 0
1
00H
00H
00H
00H
00H
00H
00H
00H
0
DSUBLGRQ
DSUALGRQ
DSPRLGRQ
DSFDLGRQ
PRIRQOD
reserved
reserved
reserved
Publication Release Date: April 1998
W83877ATF
Version 0.51
must