ST72652 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72652

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

STMicroelectronics 

ST7265x

WATCHDOG TIMER (Cont’d)

11.1.8 Register Description

CONTROL REGISTER (CR)

Read /Write

Reset Value: 0111 1111 (7Fh)

7

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-

0

dog option is enabled by option byte.

WDGA T6 T5 T4 T3 T2 T1 T0

Bit 7 = WDGA Activation bit.

This bit is set by software and only cleared by

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

Address

(Hex.)

Register

Label

7

6

5

4

3

2

1

0

WDGCR

WDGA

T6

T5

T4

T3

T2

T1

T0

14

Reset Value

0

1

1

1

1

1

1

1

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