3 register descriptions, Table 16.3 register states in each operating mode – Renesas SH7781 User Manual
Page 792
16. Watchdog Timer and Reset (WDT)
Rev.1.00 Jan. 10, 2008 Page 762 of 1658
REJ09B0261-0100
16.3
Register Descriptions
Table 16.2 shows the registers of the WDT module. Table 16.3 shows the register states in each
operating mode.
Table 16.2 Register Configuration
Register Name
Abbreviation R/W
P4 Address
Area 7
Address
Access
Size
Sync
Clock
Watchdog timer stop time register WDTST
R/W
H'FFCC 0000
H'1FCC 0000
32
Pck
Watchdog timer control/status
register
WDTCSR
R/W
H'FFCC 0004
H'1FCC 0004
32
Pck
Watchdog timer base stop time
register
WDTBST
R/W
H'FFCC 0008
H'1FCC 0008
32
Pck
Watchdog timer counter
WDTCNT
R
H'FFCC 0010
H'1FCC 0010
32
Pck
Watchdog timer base counter
WDTBCNT
R
H'FFCC 0018
H'1FCC 0018
32
Pck
Table 16.3 Register States in Each Operating Mode
Register Name
Abbreviation
Power-on
Reset by
PRESET Pin
Power-on
Reset by
WDT/H-UDI
Manual
Reset by
WDT/
Multiple
Exception
Sleep/Deep
Sleep Mode
by SLEEP
Instruction
Watchdog timer stop time register WDTST H'0000
0000
Retained
Retained
Retained
Watchdog timer control/status
register
WDTCSR H'0000
0000
Retained Retained Retained
Watchdog timer base stop time
register
WDTBST H'0000
0000
Retained Retained
Retained
Watchdog timer counter
WDTCNT
H'0000 0000
H'0000 0000 Retained
Retained
Watchdog timer base counter
WDTBCNT
H'0000 0000
H'0000 0000 Retained
Retained