w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 47

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

In the PS/2 Model 30 mode, the bit definitions are as follows:
DSKCHG (Bit 7):
This bit indicates the status of DSKCHG input.
Bit 6-4: These bits are always a logic 1 during a read.
DMAEN (Bit 3):
This bit indicates the value of DO REGISTER bit 3.
NOPREC (Bit 2):
This bit indicates the value of CC REGISTER NOPREC bit.
DRATE1 DRATE0 (Bit 1, 0):
These two bits select the data rate of the FDC.
5.2.9
This register is used to control the data rate. In the PC/AT and PS/2 mode, the bit definitions are as
follows:
Bit 7-2: Reserved. These bits should be set to 0.
Configuration Control Register (CC Register) (Write base address + 7)
X: Reserved
x
7
7
x
6
6
0
x
5
5
0
x
0
4
4
3
x
3
- 39 -
2
x
2
W83977ATF/W83977ATG
1
1
0
DSKCHG
DRATE0
0
DRATE1
NOPREC
DMAEN
Publication Release Date: May 2006
DRATE0
DRATE1
Revision 0.6