m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 266

• 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
Figure 2.12.4. Set-up procedure of watchdog timer interrupt (watchdog timer interrupt)
Setting watchdog timer start register
Setting watchdog timer control register
Cancel protect register
Software reset
b7
b7
b7
b7
0 0
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1
0
1
b0
b0
b0
b0
Enables writing to processor mode register 0 and 1 (addresses 0004
0005
Reserved bit
Software reset bit
The value of this bit is “0” when read.
Reserved bit
Prescaler select bit
The watchdog timer is initialized and starts counting with a write instruction to
this register. The watchdog timer value is always initialized to “7FFF
regardless of the value written.
Watchdog timer control register [Address 000F
WDC
Watchdog timer start register [Address 000E
WDTS
Protect register [Address 000A
PRCR
Processor mode register 0 [Address 0004
PM0
1: Write-enabled
The device is reset when this bit is set to “1”.
Must always be “0”
0 : Divided by 16
1 : Divided by 128
16
Generating watchdog
)
timer interrupt
16
]
16
]
16
]
16
]
16
16
2. Watchdog Timer
”
and