FDC37C78_07 SMSC [SMSC Corporation], FDC37C78_07 Datasheet - Page 20

• Manufacturer Part Number: FDC37C78_07
• Description: Floppy Disk Controller
• Manufacturer: SMSC [SMSC Corporation]

DIGITAL INPUT REGISTER (DIR)
Address 3F7 READ ONLY
This register is read-only.
BIT 0 - 6 UNDEFINED
The data bus outputs D0 - 6 will remain in a high
impedance state during a read of this register.
RESET
COND.
CHG
DSK
N/A
7
N/A
6
N/A
5
20
N/A
4
BIT 7 DSKCHG
This bit monitors the pin of the same name and
reflects the opposite value seen on the disk cable.
N/A
3
N/A
2
N/A
1
N/A
0