參數(shù)資料
型號: UPD784031YGC-3B9
廠商: NEC Corp.
英文描述: 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16-/8-bit的單晶片微控制器
文件頁數(shù): 32/88頁
文件大小: 464K
代理商: UPD784031YGC-3B9
32
μ
PD784031Y
7.5 PWM Output (PWM0, PWM1)
Two channels of PWM (pulse width modulation) output circuits with a resolution of 12 bits and a repeat frequency of
62.5 kHz (f
CLK
= 16 MHz) are provided. Both these PWM output channels can select a high or low level as the active level.
These outputs are ideal for controlling the speed of a DC motor.
Figure 7-6. Block Diagram of PWM Output Unit
Remark
n = 0 or 1
Internal bus
16
8
Reload
control
4
8
8-bit down counter
Prescaler
Pulse control circuit
4-bit counter
Output
control
1/256
PWMn (output pin)
PWM control
register (PWMC)
0
3
4
7
8
15
PWMn
PWM modulo register
f
CLK
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