FDC37C78_07 SMSC [SMSC Corporation], FDC37C78_07 Datasheet - Page 14

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

Bit 7
Bit 7
X
X
X
X
X
X
X
X
X
X
X
X
1
0
1
0
Bit 6
Bit 6
X
X
X
X
X
X
X
X
X
X
X
X
1
0
1
0
Table 8 - External 2 to 4 Drive Decode - Drives 0 and 1 Swapped
DIGITAL OUTPUT REGISTER
DIGITAL OUTPUT REGISTER
Bit 5
Bit 5
X
X
X
X
X
X
X
X
X
X
X
X
1
0
1
0
Table 7 - External 2 to 4 Drive Decode - Normal
Bit 4
Bit 4
X
X
X
X
X
X
X
X
X
X
X
X
1
0
1
0
Bit1
Bit1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
14
Bit 0
Bit 0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
nDS1
nDS1
DRIVE SELECT
DRIVE SELECT
(ACTIVE LOW)
0
0
1
1
0
0
1
1
(ACTIVE LOW)
0
0
1
1
0
0
1
1
OUTPUTS
OUTPUTS
nDS0
nDS0
0
1
0
1
0
1
0
1
1
0
0
1
1
0
0
1
MOTOR ON OUTPUTS
MOTOR ON OUTPUTS
nMTR1
nMTR1
(ACTIVE LOW)
1
1
1
1
1
1
1
1
(ACTIVE LOW)
1
1
1
1
1
1
1
1
nMTR0
nMTR0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1