TMP86C993XB(EYZ) Toshiba, TMP86C993XB(EYZ) Datasheet - Page 83
TMP86C993XB(EYZ)
Manufacturer Part Number
TMP86C993XB(EYZ)
Description
EMULATION CHIP FOR TMP86F SSOP
Manufacturer
Toshiba
Series
-r
Datasheet
1.TMP86C993XB.pdf
(246 pages)
Specifications of TMP86C993XB(EYZ)
Accessory Type
Adapter
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
TMP86F SSOP
Other names
TMP86C993XB
TMP86C993XB
TMP86C993XB
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8. Watchdog Timer (WDT)
8.1
noises or the deadlock conditions, and return the CPU to a system recovery routine.
request”. Upon the reset release, this signal is initialized to “reset request”.
Watchdog Timer Configuration
The watchdog timer is a fail-safe system to detect rapidly the CPU malfunctions such as endless loops due to spurious
The watchdog timer signal for detecting malfunctions can be programmed only once as “reset request” or “interrupt
When the watchdog timer is not used to detect malfunctions, it can be used as the timer to provide a periodic interrupt.
Note:Care must be taken in system design since the watchdog timer functions are not be operated completely due to
Internal reset
fc/2
fc/2
fc/2
fc/2
effect of disturbing noise.
23
21
19
17
or fs/2
or fs/2
or fs/2
or fs/2
15
13
11
9
WDTT
2
0034
WDTEN
Watchdog timer control registers
Figure 8-1 Watchdog Timer Configuration
H
WDTCR1
Clock
Clear
S R
Q
Binary counters
Writing
disable code
1
Controller
0035
2
H
WDTCR2
Page 69
Overflow
Writing
clear code
WDT output
WDTOUT
Reset release
Interrupt request
R
S
Q
TMP86FH92DMG
Reset
request
INTWDT
interrupt
request
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