Registers, E table 64), E figure 65) – Rainbow Electronics AT89C5132 User Manual

Page 60

background image

60

AT8xC5132

4173A–8051–08/02

Registers

Table 64. WDTRST Register

WDTRST (S:A6h Write only) – Watchdog Timer Reset Register

Reset Value = XXXX XXXXb

Table 65. WDTPRG Register

WDTPRG (S:A7h) – Watchdog Timer Program Register

Reset Value = XXXX X000b

7

6

5

4

3

2

1

0

-

-

-

-

-

-

-

-

Bit

Number

Bit

Mnemonic

Description

7 - 0

-

Watchdog Control Value.

7

6

5

4

3

2

1

0

-

-

-

-

-

WTO2

WTO1

WTO0

Bit

Number

Bit

Mnemonic

Description

7-3

-

Reserved
The values read from these Bits are indeterminate. Do not set these Bits.

2-0

WTO2:0

Watchdog Timer Time-Out Selection Bits
Refer to Table 64 for time-out periods.