M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 443
M30622MA-XXXFP
Manufacturer Part Number
M30622MA-XXXFP
Description
16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.M30622MA-XXXFP.pdf
(621 pages)
- Current page: 443 of 621
- Download datasheet (9Mb)
428
Watchdog Timer
Operation
Figure 2.11.3. Operation timing of watchdog timer
2.11.2 Operation of Watchdog Timer
The following is an operation of the watchdog timer. Figure 2.11.3 shows the operation timing, and Figure
2.11.4 shows the set-up procedure.
Write signal to the
watchdog timer
start register
(1) Writing to the watchdog timer start register initializes the watchdog timer to 7FFF
(2) With a count in progress, writing to the watchdog timer start register again initializes the
(3) Either executing the WAIT instruction or going to the stopped state causes the watchdog
(4) If the watchdog timer underflows, it is initialized to 7FFF
7FFF
causes it to start a down count.
watchdog timer to 7FFF
timer to hold the count in progress and to stop counting. The watchdog timer resumes count-
ing after returning from the execution of the WAIT instruction or from the stopped state.
time, a watchdog timer interrupt occurs.
0000
“H”
“L”
16
16
(1) Start count
16
and causes it to resume counting.
(2) Write operation
(3) In stopped state, or WAIT
instruction is executing, etc
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
and continues counting. At this
(4) Generate
Mitsubishi microcomputers
M16C / 62 Group
watchdog timer
interrupt
16
and
Related parts for M30622MA-XXXFP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Manufacturer:
Mitsubishi
Datasheet:
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet: