TS87C51RD2-VCKB View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

TS87C51RD2-VCKB

High Performance 8-bit Microcontrollers

Atmel Corporation 

TS80C51RA2/RD2

TS83C51RB2/RC2/RD2

TS87C51RB2/RC2/RD2

Table 20. IP Register

IP - Interrupt Priority Register (B8h)

7

6

5

4

3

2

1

0

-

PPC

PT2

PS

PT1

PX1

PT0

PX0

Bit Number

Bit

Mnemonic

Description

7

-

Reserved

The value read from this bit is indeterminate. Do not set this bit.

6

PPC

PCA interrupt priority bit

Refer to PPCH for priority level.

5

PT2

Timer 2 overflow interrupt Priority bit

Refer to PT2H for priority level.

4

PS

Serial port Priority bit

Refer to PSH for priority level.

3

PT1

Timer 1 overflow interrupt Priority bit

Refer to PT1H for priority level.

2

PX1

External interrupt 1 Priority bit

Refer to PX1H for priority level.

1

PT0

Timer 0 overflow interrupt Priority bit

Refer to PT0H for priority level.

0

PX0

External interrupt 0 Priority bit

Refer to PX0H for priority level.

Reset Value = X000 0000b

Bit addressable

42

Rev. C - 06 March, 2001

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