AT89C51RC2-3CSCM(2003) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89C51RC2-3CSCM
(Rev.:2003)

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

Atmel Corporation 

AT89C51RB2/RC2

Table 48. IPL1 Register

IPL1 - Interrupt Priority Register (B2h)

7

6

5

4

-

-

-

-

3

2

1

-

SPIL

-

Bit

Number

7

Bit

Mnemonic Description

-

Reserved

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

6

-

Reserved

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

5

-

Reserved

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

4

-

Reserved

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

3

-

Reserved

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

2

SPIL

SPI Interrupt Priority Bit

see SPIH for priority level.

1

-

Reserved

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

0

KBDL

Keyboard Interrupt Priority Bit

see KBDH for priority level.

Reset Value = XXXX X000b

Bit addressable

0

KBDL

59

4180B–8051–04/03

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