Регистры H616: PWM Control Register

31 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 16
15 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 00

Unused

Bits 31 : 12

PWM_PERIOD_RDY

Bit 11
R
0x0

PWM Period Register Ready
0: PWM period register is ready to write
1: PWM period register is busy

PWM_PUL_START

Bit 10
R/W1S
0x0

PWM Pulse Output Start
0: No effect
1: Output pulse for PWM_CYCLE_NUM+1
After finishing configuration for outputting pulse, set this bit once and then
PWM would output waveform. After the waveform is finished, the bit will
be cleared automatically.

PWM_MODE

Bit 9
R/W
0x0

PWM Output Mode Select
0: Cycle mode
1: Pulse mode

PWM_ACT_STA

Bit 8
R/W
0x0

PWM Active State
0: Low Level
1: High Level

PWM_PRESCAL_K

Bits 7 : 0
R/W
0x0

PWM pre-scale K, actual pre-scale is (K+1)
K = 0, actual pre-scale: 1
K = 1, actual pre-scale: 2
K = 2, actual pre-scale: 3
K = 3, actual pre-scale: 4
***

K = 255, actual pre-scale: 256

Bit fields structure

typedef union pcr { struct { unsigned pwm_prescal_k : 8; unsigned pwm_act_sta : 1; unsigned pwm_mode : 1; unsigned pwm_pul_start : 1; unsigned pwm_period_rdy : 1; unsigned unused0 : 20; } b; unsigned long w; } PCR