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: 27/78页
文件大小: 680K
代理商: MB90F457PMT
MB90455 Series
33
16-bit input/output timer block diagram
16-bit free-run timer
Counter value of 16-bit free-run timer is used as reference time (base time) of input capture.
Input capture
Input capture detects rising edge, falling edge or both edges and retains a counter value of 16-bit free-run timer.
Detection of edge on input signal is allowed to generate interrupt.
16-bit free-run timer block diagram
Internal data bus
Input capture
Special-
purpose bus
16-bit free-run
timer
IVF
IVFE
CLK2 CLK1 CLK0
STOP
CLR
CLK
STOP
CLR
2
OF
Re-
served
16-bit free-run timer
Timer counter data register
(TCDT)
Output counter value
to input capture
Prescaler
Timer counter
control status register
(TCCS)
Free-run timer
interrupt request
φ : Machine clock
OF : Overflow
Internal
data
bus
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