Motor Controller (MC10B8CV1)
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
687
20.4.1.3.4
Relationship Between RECIRC Bit, S Bit, MCOM Bits, PWM State, and Output
Transistors
Please refer to
Figure 20-16
for the output transistor assignment.
Figure 20-16. Output Transistor Assignment
Table 20-13
illustrates the state of the output transistors in different states of the PWM motor controller
module. ‘—’ means that the state of the output transistor is not controlled by the motor controller.
Table 20-13. State of Output Transistors in Various Modes
Mode
MCOM[1:0]
PWM Duty
RECIRC
S
T1
T2
T3
T4
Off
Don’t care
—
Don’t care
Don’t care
—
—
—
—
Half H-Bridge
00
Active
Don’t care
Don’t care
—
—
OFF
ON
Half H-Bridge
00
Passive
Don’t care
Don’t care
—
—
ON
OFF
Half H-Bridge
01
Active
Don’t care
Don’t care
OFF
ON
—
—
Half H-Bridge
01
Passive
Don’t care
Don’t care
ON
OFF
—
—
(Dual) Full
10 or 11
Active
0
0
ON
OFF
OFF
ON
(Dual) Full
10 or 11
Passive
0
0
ON
OFF
ON
OFF
(Dual) Full
10 or 11
Active
0
1
OFF
ON
ON
OFF
(Dual) Full
10 or 11
Passive
0
1
ON
OFF
ON
OFF
(Dual) Full
10 or 11
Active
1
0
ON
OFF
OFF
ON
(Dual) Full
10 or 11
Passive
1
0
OFF
ON
OFF
ON
(Dual) Full
10 or 11
Active
1
1
OFF
ON
ON
OFF
(Dual) Full
10 or 11
Passive
1
1
OFF
ON
OFF
ON
V
DDM
V
SSM
MnCyP
MnCyM
T1
T2
T3
T4
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