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ST7FLITE25F2M6 データシート(PDF) 54 Page - STMicroelectronics

部品番号 ST7FLITE25F2M6
部品情報  8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
PDF  133 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7FLITE25F2M6 データシート(HTML) 54 Page - STMicroelectronics

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WATCHDOG TIMER (Cont’d)
11.1.5 Interrupts
None.
11.1.6 Register Description
CONTROL REGISTER (CR)
Read/Write
Reset Value: 0111 1111 (7Fh)
Bit 7 = WDGA Activation bit.
This bit is set by software and only cleared by
hardware after a reset.
When WDGA = 1, the watchdog can generate a
reset.
0: Watchdog disabled
1: Watchdog enabled
Note: This bit is not used if the hardware watch-
dog option is enabled by option byte.
Bits 6:0 = T[6:0] 7-bit timer (MSB to LSB).
These bits contain the decremented value. A reset
is produced when it rolls over from 40h to 3Fh (T6
becomes cleared).
Table 13. Watchdog Timer Register Map and Reset Values
70
WDGA
T6
T5
T4
T3
T2
T1
T0
Address
(Hex.)
Register
Label
76543
210
002Eh
WDGCR
Reset Value
WDGA
0
T6
1
T5
1
T4
1
T3
1
T2
1
T1
1
T0
1
1



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