17 WATCHDOG TIMER (WDT)
S1C17001 TECHNICAL MANUAL
EPSON
207
0x5040: Watchdog Timer Control Register (WDT_CTL)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
Watchdog
Timer Control
Register
(WDT_CTL)
0x5040
(8 bits)
D7–5
–
reserved
–
–
–
0 when being read.
D4
WDTRST
Watchdog timer reset
1 Reset
0 Ignored
0
W
D3–0
WDTRUN[3:0]
Watchdog timer run/stop control
Other than 1010
Run
1010
Stop
1010 R/W
D[7:5] Reserved
D4
WDTRST: Watchdog Timer Reset Bit
Resets the watchdog timer.
1 (W): Reset
0 (W): Disabled
0 (R):
Normally 0 when read out (default)
To use the watchdog timer, it must be reset by writing 1 to this bit within the NMI/Reset generation
cycle (4 seconds when f
OSC1
= 32.768 kHz).
This resets the up-counter to 0 and starts counting with a new NMI/Reset generation cycle.
D[3:0]
WDTRUN[3:0]: Watchdog Timer Run/Stop Control Bits
Controls the watchdog timer Run/Stop.
Values other than 0b1010 (R/W): Run
0b1010 (R/W):
Stop (default)
The watchdog timer must also be reset to prevent generation of an unnecessary NMI or Reset while the
watchdog timer operates.
Содержание S1C17001
Страница 1: ...Technical Manual S1C17001 CMOS 16 BIT SINGLE CHIP MICROCONTROLLER ...
Страница 31: ...3 MEMORY MAP AND BUS CONTROL 22 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 33: ...4 POWER SUPPLY VOLTAGE 24 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 63: ...6 INITERRUPT CONTROLLER 54 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 87: ...8 CLOCK GENERATOR CLG 78 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 91: ...9 PRESCALER PSC 82 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 133: ...11 16 BIT TIMER T16 124 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 185: ...14 8 BIT OSC1 TIMER T8OSC1 176 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 211: ...16 STOPWATCH TIMER SWT 202 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 219: ...17 WATCHDOG TIMER WDT 210 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 241: ...18 UART 232 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 277: ...20 I2 C 268 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
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Страница 303: ...22 ON CHIP DEBUGGER DBG 294 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
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