PXD20RM Datasheet, PDF (1427/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

V_DDM
T1
T3
MnCyP
T2
MnCyM
T4
V_SSM
Figure 41-26. Output Transistor Assignment
Table 41-21 illustrates the state of the output transistors in different states of the SMC module. ‘—’ means
that the state of the output transistor is not controlled by the SMC.
Table 41-21. State of Output Transistors in Various Modes
Mode
MCCCx
[MCOM]
PWM
Duty¹
MCCTL1
[RECIRC]
MCDCx
[SIGN[4]]
T1
T2
T3
T4
MnC MnC
yM yP
Off
Don’t care
—
Don’t care Don’t care — — — — — —
Half H-Bridge
0x0
Active
Don’t care Don’t care — — OFF ON 0 —
Half H-Bridge
0x0
Passive Don’t care Don’t care — — ON OFF 1 —
Half H-Bridge
0x1
Active
Don’t care Don’t care OFF ON — — — 0
Half H-Bridge
0x1
Passive Don’t care Don’t care ON OFF — — — 1
(Dual) Full 0x2 or 0x3 Active
0
0
ON OFF OFF ON 0
1
(Dual) Full 0x2 or 0x3 Passive
0
0
ON OFF ON OFF 1
1
(Dual) Full 0x2 or 0x3 Active
0
1
OFF ON ON OFF 1
0
(Dual) Full 0x2 or 0x3 Passive
0
1
ON OFF ON OFF 1
1
(Dual) Full 0x2 or 0x3 Active
1
0
ON OFF OFF ON 0
1
(Dual) Full 0x2 or 0x3 Passive
1
0
OFF ON OFF ON 0
0
(Dual) Full 0x2 or 0x3 Active
1
1
OFF ON ON OFF 1
0
(Dual) Full 0x2 or 0x3 Passive
1
1
OFF ON OFF ON 0
0
1 _{When in (Dual) Full mode and RECIRC=0, the PWM is 0 when the duty cycle is active and 1 when it is passive. When}
RECIRC = 1, the opposite is true.
Freescale Semiconductor
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
41-27