参数资料
型号: MB90F457PMT
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
封装: 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 28/78页
文件大小: 680K
代理商: MB90F457PMT
MB90455 Series
34
Detailed pin assignment on block diagram
The 16-bit input/output timer includes a 16-bit free-run timer. Interrupt request number of the 16-bit free-run
timer is as follows:
Interrupt request number: 19 (13H)
Prescaler
The prescaler divides a machine clock and provides a counter clock to the 16-bit up counter. Dividing ratio of
the machine clock is specified by timer counter control status register (TCCS) among four values.
Timer counter data register (TCDT)
The timer counter data register is a 16-bit up counter. A current counter value of the 16-bit free-run timer is read.
Writing a value during halt of the counter allows setting an arbitrary counter value.
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