PIC16C62XAT-20I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16C62XAT-20I/SO

EPROM-Based 8-Bit CMOS Microcontroller

Microchip Technology 

PIC16C62X

FIGURE 9-17: WATCHDOG TIMER BLOCK DIAGRAM

From TMR0 Clock Source

(Figure 6-6)

Watchdog

Timer

0

M

•

1U

X

WDT

Enable Bit

PSA

Postscaler

8

8 - to -1 MUX

PS<2:0>

•

0

1

MUX

To TMR0 (Figure 6-6)

PSA

WDT

Time-out

Note: T0SE, T0CS, PSA, PS0-PS2 are bits in the OPTION register.

TABLE 9-9: SUMMARY OF WATCHDOG TIMER REGISTERS

Address Name

Bit 7

Bit 6

Bit 5

2007h

Config. bits

---

BOREN CP1

81h

OPTION

RBPU INTEDG T0CS

Legend: Shaded cells are not used by the Watchdog Timer.

Bit 4

CP0

T0SE

Bit 3

PWRTE

PSA

Bit 2

WDTE

PS2

Bit 1

FOSC1

PS1

Bit 0

FOSC0

PS0

Note: _ = Unimplemented location, read as “0”

+ = Reserved for future use

DS30235G-page 58

Preliminary

© 1998 Microchip Technology Inc.

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