AT89C51RC2-3CSCM View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89C51RC2-3CSCM

8-bit Microcontroller with 16K/32K Bytes Flash

Atmel Corporation 

Table 45. IPL0 Register

IPL0 - Interrupt Priority Register (B8h)

7

6

5

4

-

PPCL

PT2L

PSL

3

PT1L

2

PX1L

1

PT0L

Bit

Number

7

6

5

4

3

2

1

0

Bit

Mnemonic Description

-

Reserved

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

PPCL

PCA Interrupt Priority Bit

see PPCH for priority level.

PT2L

Timer 2 Overflow Interrupt Priority Bit

see PT2H for priority level.

PSL

Serial Port Priority Bit

see PSH for priority level.

PT1L

Timer 1 Overflow Interrupt Priority Bit

see PT1H for priority level.

PX1L

External Interrupt 1 Priority Bit

see PX1H for priority level.

PT0L

Timer 0 Overflow Interrupt Priority Bit

see PT0H for priority level.

PX0L

External Interrupt 0 Priority Bit

see PX0H for priority level.

Reset Value = X000 0000b

Bit addressable

0

PX0L

58 AT89C51RB2/RC2

4180E–8051–10/06

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