Toshiba H1 Series - Manual (Page 621)

TMP92CZ26A
92CZ26A-618
7 6 5 4 3 2 1 0
Bit symbol WDTE WDTP1 WDTP0 I2WDT RESCR
−
WDMOD
(1300H)
Read/Write R/W R/W
After reset 1 0 0 0 0 0
Function WDT control
1: Enable
Select detecting time
00: 2 15 /f IO
01: 2 17 /f IO
10: 2 19 /f
IO
11: 2 21 /f
IO
IDLE2
0: Stop
1: Operate
1: Internally
connects
WDT out
to the
reset pin
Always
write “0”
Watchdog timer out control
0
−
1 Connects WDT out to a reset
IDLE2 control
0 Stop
1 Operation
Watchdog timer detection time
00 2 15 /f IO (Approximately 819.2
μs at f
IO
= 40 MHz)
01 2 17 /f
IO
(Approximately 3.276 ms at f
IO
= 40 MHz)
10 2 19 /f IO (Approximately 13.107 ms at f IO
= 40 MHz)
11 2 21 /f
IO
(Approximately 52.428 ms at f
IO
= 40 MHz)
Watchdog timer enable/disable control
0 Disabled
1 Enabled
Figure 3.24.4 Watchdog Timer Mode Register
7 6 5 4 3 2 1 0
Bit symbol
−
WDCR
(1301H)
Read/Write W
After reset
−
Function B1H: WDT disable code
4EH: WDT clear code
WDT disable/clear control
B1H Disable code
4EH Clear code
Others Don’t care
Figure 3.24.5 Watchdog Timer Control Register
Read
-modify
-write
instruction is
prohibited