AT89C51RB2-RLTCM ATMEL [ATMEL Corporation], AT89C51RB2-RLTCM Datasheet - Page 56
AT89C51RB2-RLTCM
Manufacturer Part Number
AT89C51RB2-RLTCM
Description
8-bit Microcontroller with 16K/ 32K Bytes Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51RB2-RLTCM.pdf
(125 pages)
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AT89C51RB2/RC2
Table 45. IPL0 Register
IPL0 - Interrupt Priority Register (B8h)
Reset Value = X000 0000b
Bit addressable
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic Description
PPCL
PPCL
PT2L
PT1L
PX1L
PT0L
PX0L
PSL
Bit
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PCA Interrupt Priority Bit
see PPCH for priority level.
Timer 2 Overflow Interrupt Priority Bit
see PT2H for priority level.
Serial Port Priority Bit
see PSH for priority level.
Timer 1 Overflow Interrupt Priority Bit
see PT1H for priority level.
External Interrupt 1 Priority Bit
see PX1H for priority level.
Timer 0 Overflow Interrupt Priority Bit
see PT0H for priority level.
External Interrupt 0 Priority Bit
see PX0H for priority level.
PT2L
5
PSL
4
PT1L
3
PX1L
2
PT0L
1
4180B–8051–04/03
PX0L
0
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