参数资料
型号: M30201F4T-FP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP56
封装: PLASTIC, QFP-56
文件页数: 109/158页
文件大小: 1633K
代理商: M30201F4T-FP
54
Under
development
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Timer A
Item
Specification
Count source
Two-phase pulse signals input to TA0IN or TA0OUT pin
Count operation
Up count or down count can be selected by two-phase pulse signal
When the timer overflows or underflows, the reload register content is
reloaded and the timer starts over again (Note)
Divide ratio
1/ (FFFF16 - n + 1) for up count
1/ (n + 1) for down count
n : Set value
Count start condition
Count start flag is set (= 1)
Count stop condition
Count start flag is reset (= 0)
Interrupt request generation timing
Timer overflows or underflows
TA0IN pin function
Two-phase pulse input
TA0OUT pin function
Two-phase pulse input
Read from timer
Count value can be read out by reading timer A0 register
Write to timer
When counting stopped
When a value is written to timer A0 register, it is written to both reload regis-
ter and counter
When counting in progress
When a value is written to timer A0 register, it is written to only reload regis-
ter. (Transferred to counter at next reload time.)
Select function
Normal processing operation
The timer counts up rising edges or counts down falling edges on the TA0IN
pin when input signal on the TA0OUT pin is “H”
Multiply-by-4 processing operation
If the phase relationship is such that the TA0IN pin goes “H” when the input
signal on the TA0OUT pin is “H”, the timer counts up rising and falling edges
on the TA0OUT and TA0IN pins. If the phase relationship is such that the
TA0IN pin goes “L” when the input signal on the TA0OUT pin is “H”, the timer
counts down rising and falling edges on the TA0OUT and TA0IN pins.
Note: This does not apply when the free-run function is selected.
Table 1.15. Timer specifications in event counter mode (when processing two-phase pulse signal)
TA0OUT
Up
count
Up
count
Up
count
Down
count
Down
count
Down
count
TA0IN
TA0OUT
TA0IN
Count up all edges
Count down all edges
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