UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 250

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

8.7.5 Software Triggered One-Shot Pulse Output
is set to the active level. TOn then remains at the active level until the timer register 0 (TM0) value and the compare register
(CR0n: n = 0, 1) value match, at which point TOn changes to the inactive level. TOn then retains at the inactive level until the
STn bit is set again. TOn can also be set to the inactive level by setting (1) the RTn bit (n = 0/1), and in the same way, TOn retains
at the inactive level until the STn bit is set again.
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In the software triggered one-shot pulse output mode, a one-shot pulse is output by software.
When the STn (n = 0/1) bit of the one-shot pulse output control register (OSPC) is set (1), timer output pin (TOn: n = 0, 1)
TO0 and TO1 can be controlled independently.
An example of software triggered one-shot pulse output is shown in Figure 8-29.
When timer/counter 0 is stopped by clearing (0) the CE0 bit of the TMC0, the level at the time was stopped is retained.
Caution “1” should not be written to STn and RTn simultaneously.
INTC00
ALV0
TO0
ST0
0H
Figure 8-29 Example of Software Triggered One-Shot Pulse Output
Software Trigger
Count Start
“1”
Active Period
CHAPTER 8 TIMER/COUNTER 0
Inactive Level Output
FFFFH