m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 46

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
2.2.14 Precautions for Timer A (one-shot timer mode)
(1) At reset, the count start flag is set to “0”. Set a value in the timer Ai register, then set the flag
(2) Setting the count start flag to “0” while a count is in progress causes as follows:
(3) The timer Ai interrupt request bit goes to “1” if the timer's operation mode is set using any of
(4) If a trigger occurs while a count is in progress, after the counter performs one down count
to “1”.
the following procedures:
Therefore, to use timer Ai interrupt (interrupt request bit), set timer Ai interrupt request bit to
“0” after the above listed changes have been made.
following the reoccurrence of a trigger, the reload register contents are reloaded, and the
count continues. To generate a trigger while a count is in progress, generate the second
trigger after an elapse longer than one cycle of the timer's count source after the previous
trigger occurred.
• The counter stops counting and a content of reload register is reloaded.
• The TAi
• The interrupt request generated and the timer Ai interrupt request bit goes to “1”.
• Selecting one-shot timer mode after reset.
• Changing operation mode from timer mode to one-shot timer mode.
• Changing operation mode from event counter mode to one-shot timer mode.
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OUT
pin outputs “L” level.
2. Timer A