M30622 Mitsubishi, M30622 Datasheet - Page 171

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

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.
Tentative Specifications REV.A
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”.
S
• 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.
pecifications in this manual are tentative and subject to change.
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
171
OUT
pin is outputting an “L” level in this instance,
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Mitsubishi microcomputers
M16C / 62T Group
16
16
16
”. Reading the
” by underflow
”. Reading the