CHAPTER 9 TIMER/COUNTER FUNCTION (REAL-TIME PULSE UNIT)
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User’s Manual U14492EJ3V0UD
9.5 Timer 4
9.5.1 Features (timer 4)
Timer 4 (TM4) functions as a 16-bit interval timer.
9.5.2 Function overview (timer 4)
•
16-bit interval timer: 1 channel
•
Compare register: 1
•
Count clock selected from divisions of internal system clock (set the frequency of the count clock to 16 MHz or
less)
•
Base clock (f
CLK
): 1 type (set f
CLK
to 32 MHz or less)
f
XX
/2
•
Prescaler division ratio
The following division ratios can be selected according to the base clock (f
CLK
).
Division Ratio
Base Clock (f
CLK
)
1/2
f
XX
/4
1/4
f
XX
/8
1/8
f
XX
/16
1/16
f
XX
/32
1/32
f
XX
/64
1/64
f
XX
/128
1/128
f
XX
/256
1/256
f
XX
/512
•
Interrupt request source: 1
•
Compare match interrupt
INTCM4 generated with CM4 match signal
•
Timer clear
TM4 register can be cleared by CM4 register match.
Remark
f
XX
: Internal system clock
Содержание V850E/IA1 mPD703116
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