w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 35

• Manufacturer Part Number: w83977atf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

MOT EN B (Bit 1)
This bit indicates the complement of the MOB output pin.
MOT EN A (Bit 0)
This bit indicates the complement of the MOA output pin.
In PS/2 Model 30 mode, the bit definitions for this register are as follows:
DRV2 (Bit 7):
0
1
DSB (Bit 6):
This bit indicates the status of DSB output pin.
DSA (Bit 5):
This bit indicates the status of DSA output pin.
WD F/F(Bit 4):
This bit indicates the complement of the latched WD output pin at every rising edge of the WD
output pin.
RDATA F/F(Bit 3):
This bit indicates the complement of the latched RDATA output pin .
WE F/F (Bit 2):
This bit indicates the complement of latched WE output pin.
DSD (Bit 1):
0
1
DSC (Bit 0):
0
1
A second drive has been installed
A second drive has not been installed
Drive D has been selected
Drive D has not been selected
Drive C has been selected
Drive C has not been selected
7
6
5
4
3
-34-
2
1
0
WD F/F
DSC
DSD
WE F/F
RDATA F/F
DSA
DSB
DRV2
Publication Release Date: April 1998
W83977ATF
PRELIMINARY
Revision 0.52