M30621ECGP MITSUBISHI [Mitsubishi Electric Semiconductor], M30621ECGP Datasheet - Page 149
M30621ECGP
Manufacturer Part Number
M30621ECGP
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Manufacturer
MITSUBISHI [Mitsubishi Electric Semiconductor]
Datasheet
1.M30621ECGP.pdf
(230 pages)
- Current page: 149 of 230
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Usage precaution
Usage Precaution
Timer A (event counter mode)
Timer A (one-shot timer mode)
Timer A (timer mode)
Timer A (pulse width modulation mode)
Timer B (timer mode, event counter mode)
(1) Reading the timer Bi register while a count is in progress allows reading , with arbitrary timing, the
(1) Reading the timer Ai register while a count is in progress allows reading, with arbitrary timing, the
(1) Reading the timer Ai register while a count is in progress allows reading, with arbitrary timing, the
(2) When stop counting in free run type, set timer again.
(1) Setting the count start flag to “0” while a count is in progress causes as follows:
(2) The timer Ai interrupt request bit goes to “1” if the timer's operation mode is set using any of the
(1) The timer Ai interrupt request bit becomes “1” if setting operation mode of the timer in compliance with
(2) Setting the count start flag to “0” while PWM pulses are being output causes the counter to stop
value of the counter. Reading the timer Bi register with the reload timing gets “FFFF
timer Bi register after setting a value in the timer Bi register with a count halted but before the counter
starts counting gets a proper value.
value of the counter. Reading the timer Ai register with the reload timing gets “FFFF
timer Ai register after setting a value in the timer Ai register with a count halted but before the counter
starts counting gets a proper value.
value of the counter. Reading the timer Ai register with the reload timing gets “FFFF
or “0000
a count halted but before the counter starts counting gets a proper value.
following procedures:
any of the following procedures:
counting. If the TAi
the timer Ai interrupt request bit goes to “1”. If the TAi
the level does not change, and the timer Ai interrupt request bit does not becomes “1”.
• 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.
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.
• Selecting PWM mode after reset.
• Changing operation mode from timer mode to PWM mode.
• Changing operation mode from event counter mode to PWM mode.
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.
16
” by overflow. Reading the timer Ai register after setting a value in the timer Ai register with
OUT
pin outputs “L” level.
OUT
pin is outputting an “H” level in this instance, the output level goes to “L”, and
OUT
pin is outputting an “L” level in this instance,
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M16C / 62 Group (80-pin)
Mitsubishi microcomputers
16
16
16
”. Reading the
” by underflow
”. Reading the
149
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