参数资料
型号: MB89T635P-SH
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 10 MHz, MICROCONTROLLER, PDIP64
封装: SHRINK, DIP-64
文件页数: 114/153页
文件大小: 7326K
代理商: MB89T635P-SH
MB89630 SERIES HARDWARE MANUAL
2-40
(3) Description of registers
(a) Control register 1 (CNTR1)
[Bit 7] PTX1: CH1 timer/PWM operation mode switching bit
[Bit 6] PTX2: CH2 timer/PWM operation mode switching bit
The operation is performed as the timer when 0 is set at these bits, and as the PWM control circuit when
1 is written at these bits.
The timer/PWM operation mode should be switched when the counter stops operation (TPE = 0), the
inter rupt is enabled (TIE = 0), and the interrupt request flag is cleared (TIR = 0).
[Bit 5] P7M1: CH1 PWM operation mode switching bit
[Bit 4] P7M2: CH2 PWM operation mode switching bit
Writing 1 at P7W1 and P7W2 switches the mode from 8-bit PWM to 7-bit high-speed. This makes the
PWM frequency two times larger than that in the 8-bit PWM mode.
Do not write 1 at this bit in the timer mode.
[Bit 3 and 2] SC11, SC10: CH1 input-clock select bit
[Bit 1 and 0] SC21, SC20: CH2 input-clock select bit
Following clock cycles can be selected by these bits.
Note that these bits must not be rewritten when the counter is in operation (TPE = 1)
1 instruction cycle
8 instruction cycle
16 inctruction cycle
64 instruction cycle
1 instruction cycle
8 instruction cycle
16 inctruction cycle
64 instruction cycle
(0.4
s)
(3.2
s)
(6.4
s)
(25.6
s)
(0.4
s)
(3.2
s)
(6.4
s)
(25.6
s)
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