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MC908MR16CBE Datasheet, PDF (154/282 Pages) Freescale Semiconductor, Inc – The following revision history table summarizes changes contained in this document.
Pulse-Width Modulator for Motor Control (PWMMC)
DT2 — Dead-Time 2 Bit
Current sensing pin IS1 is monitored immediately before dead-time ends due to the assertion of
PWM2.
DT1 — Dead-Time 1 Bit
Current sensing pin IS1 is monitored immediately before dead-time ends due to the assertion of
PWM1.
12.9.11 PWM Output Control Register
The PWM output control register (PWMOUT) is used to manually control the PWM pins.
Address: $0025
Bit 7
6
5
4
3
2
1
Read: 0
Write:
OUTCTL OUT6
OUT5
OUT4
OUT3
OUT2
Reset: 0
0
0
0
0
0
0
= Unimplemented
Figure 12-46. PWM Output Control Register (PWMOUT)
Bit 0
OUT1
0
OUTCTL— Output Control Enable Bit
This read/write bit allows the user to manually control the PWM pins. When set, the PWM generator is
no longer the input to the dead-time and output circuitry. The OUTx bits determine the state of the
PWM pins. Setting the OUTCTL bit does not disable the PWM generator. The generator continues to
run, but is no longer the input to the PWM dead-time and output circuitry. When OUTCTL is cleared,
the outputs of the PWM generator immediately become the inputs to the dead-time and output circuitry.
1 = PWM outputs controlled manually
0 = PWM outputs determined by PWM generator
OUT6–OUT1— PWM Pin Output Control Bits
These read/write bits control the PWM pins according to Table 12-10.
Table 12-10. OUTx Bits
OUTx Bit
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
Complementary Mode
1 — PWM1 is active.
0 — PWM1 is inactive.
1 — PWM2 is complement of PWM 1.
0 — PWM2 is inactive.
1 — PWM3 is active.
0 — PWM3 is inactive.
1 — PWM4 is complement of PWM 3.
0 — PWM4 is inactive.
1 — PWM5 is active.
0 — PWM5 is inactive.
1 — PWM 6 is complement of PWM 5.
0 — PWM6 is inactive.
Independent Mode
1 — PWM1 is active.
0 — PWM1 is inactive.
1 — PWM2 is active.
0 — PWM2 is inactive.
1 — PWM3 is active.
0 — PWM3 is inactive.
1 — PWM4 is active.
0 — PWM4 is inactive.
1 — PWM5 is active.
0 — PWM5 is inactive.
1 — PWM6 is active.
0 — PWM6 is inactive.
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
154
Freescale Semiconductor