參數(shù)資料
型號(hào): UPD784031GC-8BT
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCONTROLLER
中文描述: 16/8-BIT單片機(jī)
文件頁(yè)數(shù): 33/90頁(yè)
文件大小: 377K
代理商: UPD784031GC-8BT
μ
PD784031
33
8.5 PWM Output (PWM0, PWM1)
Two channels of PWM (pulse width modulation) output circuitry with a resolution of 12 bits and a repetition
frequency of 62.5 kHz (f
CLK
= 16 MHz) are incorporated. Low or high active level can be selected for the PWM output
channels, independently of each other. This output is best suited to DC motor speed control.
Figure 8-6. Block Diagram of PWM Output Unit
Internal bus
PWM modulo register
PWM control register
(PWMC)
Reload
control
Prescaler
8-bit
down-counter
Pulse control
circuit
4-bit counter
Output
control
PWMn (output pin)
1/256
f
CLK
8
4
16
8
PWMn 15
0
8 7
4 3
Remark
n = 0, 1
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