tmp19a61f10xbg TOSHIBA Semiconductor CORPORATION, tmp19a61f10xbg Datasheet - Page 443
tmp19a61f10xbg
Manufacturer Part Number
tmp19a61f10xbg
Description
32-bit Tx System Risc Tx19 Family
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP19A61F10XBG.pdf
(575 pages)
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Part Number:
TMP19A61F10XBG
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17. Watchdog Timer (Runaway Detection Timer)
Internal reset
17.1 Configuration
f
SYS
The TMP19A61 has a built-in watchdog timer for detecting runaways.
The watchdog timer (WDT) is for detecting malfunctions (runaways) of the CPU caused by noises or
other disturbances and remedying them to return the CPU to normal operation. If the timer detects a
runaway, it generates a non-maskable interrupt to notify the CPU.
By connecting the output of the watchdog timer to a reset pin (inside the chip), it is possible to force
the watchdog timer to reset itself.
/2
Fig. 17.1 shows the block diagram of the watchdog timer.
WDMOD
<WDTP1 : 0>
Binary counter
Fig. 17.1 Block Diagram of the Watchdog Timer
(22 stages)
TMP19A61
Selector
Write
4EH
control register WDCR
Internal data bus
Watchdog timer
Reset
(rev1.0)
Write
B1H
WDMOD <RESCR>
R
-17-442
Reset control
WDMOD <WDTE>
Q
S
Interrupt request
INTWDT
TMP19A61
Internal reset
RESET pin
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