UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 251
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UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
- Current page: 251 of 759
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8.8 EXAMPLES OF USE
8.8.1 Operation as Interval Timer (1)
interrupt processing routine, TM0 operates as an interval timer with the added fixed value as the cycle (see Figure 8-30).
processing routine in Figure 8-33.
When timer register 0 (TM0) is made free-running and a fixed value is added to the compare register (CR0n: n = 0, 1) in the
This interval timer can count within the range shown in Table 8-1 (internal system clock f
Since TM0 has two compare registers, two interval timers with different cycles can be constructed.
The control register settings are shown in Figure 8-31, the setting procedure in Figure 8-32, and the processing in the interrupt
Remark Interval = n
Compare Register
Interrupt Request
TM0
Count Value
INTC00
(CR00)
0H
8/f
Timer Start
XX
, 1
Figure 8-30 Interval Timer Operation (1) Timing
n
Interval
FFFFH
n
CHAPTER 8 TIMER/COUNTER 0
n
Rewritten by
Interrupt Program
Interval
FFFFH
MOD(2n)
MOD(2n)
Rewritten by
Interrupt Program
Interval
MOD(3n)
MOD(3n)
XX
= 25 MHz).
FFFFH
Rewritten by
Interrupt Program
MOD(4n)
211
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