Table 7 - External 2 to 4 Drive Decode - Normal
DRIVE SELECT
OUTPUTS
(ACTIVE LOW)
MOTOR ON OUTPUTS
(ACTIVE LOW)
DIGITAL OUTPUT REGISTER
Bit 7
X
Bit 6
X
Bit 5
X
Bit 4
1
Bit1
0
Bit 0
0
nDS1
nDS0
nMTR1
nMTR0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
X
X
1
X
0
1
0
1
1
0
0
1
1
1
0
1
0
1
0
1
X
1
X
X
1
0
1
X
X
X
1
1
X
X
X
0
0
0
X
X
0
X
0
1
X
0
X
X
1
0
0
X
X
X
1
1
Table 8 - External 2 to 4 Drive Decode - Drives 0 and 1 Swapped
DRIVE SELECT
OUTPUTS
(ACTIVE LOW)
MOTOR ON OUTPUTS
(ACTIVE LOW)
DIGITAL OUTPUT REGISTER
Bit 7
X
Bit 6
X
Bit 5
X
Bit 4
1
Bit1
0
Bit 0
0
nDS1
nDS0
nMTR1
nMTR0
0
0
1
1
0
0
1
1
1
0
0
1
1
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
X
X
1
X
0
1
X
1
X
X
1
0
1
X
X
X
1
1
X
X
X
0
0
0
X
X
0
X
0
1
X
0
X
X
1
0
0
X
X
X
1
1
25
SMSC [ SMSC CORPORATION ]
