UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 296
UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
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9.7 EXAMPLES OF USE
9.7.1 Operation as Interval Timer (1)
interrupt processing routine, TM1 operates as an interval timer with the added fixed value as the cycle (see Figure 9-19).
processing routine in Figure 9-23.
256
When timer register 1 (TM1) is made free-running and a fixed value is added to the compare register (CR1n: n = 0, 1) in the
Since TM1 has two compare registers, two interval timers with different intervals can be constructed.
The control register settings are shown in Figure 9-20, the setting procedure in Figure 9-21, and the processing in the interrupt
Remark Interval = n
Compare Register
Interrupt Request
TM1
Count Value
x = 8, 16, 32, 64, 128, 256, 512, 1024, 2048
INTC10
(CR10)
0H
x/f
Timer Start
XX
, 1
Figure 9-19 Interval Timer Operation (1) Timing
n
Interval
FFH
n
CHAPTER 9 TIMER/COUNTER 1
n
Rewrittern by
Interrupt Program
Interval
FFH
MOD(2n)
MOD(2n)
Rewrittern by
Interrupt Program
Interval
MOD(3n)
MOD(3n)
FFH
Rewrittern by
Interrupt Program
MOD(4n)
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