Z8FMC04100 ZILOG [Zilog, Inc.], Z8FMC04100 Datasheet - Page 99

• Manufacturer Part Number: Z8FMC04100
• Description: Z8 Encore-R Motor Control Flash MCUs
• Manufacturer: ZILOG [Zilog, Inc.]

PS024604-1005
RESET
RESET
FIELD
ADDR
FIELD
ADDR
BITS
BITS
R/W
R/W
PWM 0–2 Duty Cycle High and Low Byte Registers
SIGN
R/W
7
7
0
Table 45. PWM Reload Low Byte Register (PWMRL)
Table 46. PWM 0-2 H/L Duty Cycle High Byte Register (PWMHxDH,PWMLxDH)
PWMRH and PWMRL—PWM Reload Register High and Low
These two bytes form the 12-bit Reload value, {PWMRH[3:0], PWMRL[7:0]}. This value
sets the PWM period.
The PWM 0–2 H/L Duty Cycle High and Low Byte (PWMxDH and PWMxDL) registers,
shown in Table 46 and Table 47, set the duty cycle of the PWM signal. This 14-bit signed
value is compared to the PWM count value to determine the PWM output. Reads from
these registers always return the values from the temporary holding registers. The PWM
duty cycle value is not used by the PWM generator until the next PWM reload event
occurs.
Writing a negative value (DUTYH[7] = 1) forces the PWM to be OFF for the full PWM
period. Writing a positive value greater than the 12-bit PWM reload value forces the PWM
to be ON for the full PWM period.
PWM Duty Cycle =
6
6
Reserved
R/W
00
F30H, F32H, F34H, F36H, F38H, F3AH
5
PWM Duty Cycle Value
5
PWM Reload Value
P R E L I M I N A R Y
4
4
PWMRL
F2FH
R/W
FF
3
3
PWM 0–2 Duty Cycle High and Low Byte
Z8FMC16100 Series Flash MCU
DUTYH
0_0000
R/W
2
2
Product Specification
1
1
0
0
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