W83877TF Datasheet, PDF (115/154 Pages) Winbond – I/O chip disk drive adapter

W83877TF
GDA1IPI (Bit 0): See below.
GDA1OPI
0
0
1
1
GDA1IPI
0
1
0
1
GIOP1 functions as a data pin, and GIOP1→SD1, SD1→GIOP1
GIOP1 functions as a data pin, and inverse GIOP1→SD1, SD1→
GIOP1
GIOP1 functions as a data pin, and GIOP1→SD1, inverse SD1→
GIOP1
GIOP1 functions as a data pin, and inverse GIOP1→ SD1, inverse
SD1→GIOP1
8.2.22 Configuration Register 16 (CR16), default = 04H
When the device is in Extended Function mode and EFIR is 16H, the CR16 register can be accessed
through EFDR. The bit definitions are as follows:
765
43
21
0
Bit 7-bit 6: Reserved.
G1IQSEL (Bit 5):
HEFRAS
reserved
PNPCVS
reserved
G0IQSEL
G1IQSEL
reserved
reserved
0
pin 96 function as IRQ_A.
1
pin 96 function as GIO1.
The corresponding power-on setting pin is NRTSB (pin 45).
G0IQSEL (Bit 4):
0
pins 92 function as IRQ_B.
1
pins 92 function as GIO0.
The corresponding power-on setting pin is NRTSB (pin 45).
Bit 3: Reserved.
PNPCVS (bit 2):
0
PnP-related registers (CR20, CR23-29) reset to be all 0s.
1
default settings for these registers.
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Publication Release Date: March 1998
Version 0.61