ST7265X datasheet(60/166 Pages) STMICROELECTRONICS

Datenblatt-Suchmaschine für elektronische Bauteile

ST7265X Datenblatt(PDF) 60 Page - STMicroelectronics

Teilenummer	ST7265X

Bauteilbeschribung	LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI

PDF	166 Pages

Scroll/Zoom	100%

Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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60 / 166 page

ST7265x

60/166

WATCHDOG TIMER (Cont’d)

11.1.8 Register Description

CONTROL REGISTER (CR)

Read /Write

Reset Value: 0111 1111 (7F h)

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 18. Watchdog Timer Register Map and Reset Values

WDGA

T4T3

T1T0

Address

(Hex.)

Label

WDGCR

Reset Value

WDGA

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