Freescale Semiconductor MC68HC908MR32 Manual Do Utilizador
Pulse-Width Modulator for Motor Control (PWMMC)
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
154
Freescale Semiconductor
DT2 — Dead-Time 2 Bit
Current sensing pin IS1 is monitored immediately before dead-time ends due to the assertion of
PWM2.
PWM2.
DT1 — Dead-Time 1 Bit
Current sensing pin IS1 is monitored immediately before dead-time ends due to the assertion of
PWM1.
PWM1.
12.9.11 PWM Output Control Register
The PWM output control register (PWMOUT) is used to manually control the PWM pins.
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.
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
0 = PWM outputs determined by PWM generator
OUT6–OUT1— PWM Pin Output Control Bits
These read/write bits control the PWM pins according to
Address: $0025
Bit 7
6
5
4
3
2
1
Bit 0
Read:
0
OUTCTL
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
Write:
Reset:
0
0
0
0
0
0
0
0
= Unimplemented
Figure 12-46. PWM Output Control Register (PWMOUT)
Table 12-10. OUTx Bits
OUTx Bit
Complementary Mode
Independent Mode
OUT1
1 — PWM1 is active.
0 — PWM1 is inactive.
0 — PWM1 is inactive.
1 — PWM1 is active.
0 — PWM1 is inactive.
0 — PWM1 is inactive.
OUT2
1 — PWM2 is complement of PWM 1.
0 — PWM2 is inactive.
0 — PWM2 is inactive.
1 — PWM2 is active.
0 — PWM2 is inactive.
0 — PWM2 is inactive.
OUT3
1 — PWM3 is active.
0 — PWM3 is inactive.
0 — PWM3 is inactive.
1 — PWM3 is active.
0 — PWM3 is inactive.
0 — PWM3 is inactive.
OUT4
1 — PWM4 is complement of PWM 3.
0 — PWM4 is inactive.
0 — PWM4 is inactive.
1 — PWM4 is active.
0 — PWM4 is inactive.
0 — PWM4 is inactive.
OUT5
1 — PWM5 is active.
0 — PWM5 is inactive.
0 — PWM5 is inactive.
1 — PWM5 is active.
0 — PWM5 is inactive.
0 — PWM5 is inactive.
OUT6
1 — PWM 6 is complement of PWM 5.
0 — PWM6 is inactive.
0 — PWM6 is inactive.
1 — PWM6 is active.
0 — PWM6 is inactive.
0 — PWM6 is inactive.