TS80C31X2_08 Datasheet, PDF (20/42 Pages) ATMEL Corporation – 8-bit CMOS Microcontroller ROMless

Table 10-4.
7
-
IPH Register -- IPH - Interrupt Priority High Register (B7h)
6
5
4
3
2
-
-
PSH
PT1H
PX1H
1
PT0H
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.
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PSH
Serial port Priority High bit
PSH PS Priority Level
0 0 Lowest
01
10
1 1 Highest
PT1H
Timer 1 overflow interrupt Priority High bit
PT1H PT1 Priority Level
0 0 Lowest
01
10
1 1 Highest
PX1H
External interrupt 1 Priority High bit
PX1H PX1 Priority Level
0 0 Lowest
01
10
1 1 Highest
PT0H
Timer 0 overflow interrupt Priority High bit
PT0H PT0 Priority Level
0 0 Lowest
01
10
1 1 Highest
PX0H
External interrupt 0 Priority High bit
PX0H PX0 Priority Level
0 0 Lowest
01
10
1 1 Highest
Reset Value = XXX0 0000b
Not bit addressable
0
PX0H
20 AT/TS80C31X2
4428E–8051–02/08