TS80C54 ATMEL [ATMEL Corporation], TS80C54 Datasheet - Page 27

• Manufacturer Part Number: TS80C54
• Description: 8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP
• Manufacturer: ATMEL [ATMEL Corporation]

4431E–8051–04/06
Table 10-3.
Reset Value = XX00 0000b
Bit addressable
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
PT2
PT1
PX1
PT0
PX0
Bit
PS
IP Register
IP - Interrupt Priority Register (B8h)
-
-
6
-
Reserved
Reserved
Timer 2 overflow interrupt Priority bit
Serial port Priority bit
Timer 1 overflow interrupt Priority bit
External interrupt 1 Priority bit
Timer 0 overflow interrupt Priority bit
External interrupt 0 Priority bit
The value read from this bit is indeterminate. Do not set this bit.
The value read from this bit is indeterminate. Do not set this bit.
Refer to PT2H for priority level.
Refer to PSH for priority level.
Refer to PT1H for priority level.
Refer to PX1H for priority level.
Refer to PT0H for priority level.
Refer to PX0H for priority level.
PT2
5
PS
4
PT1
3
Description
AT/TS8xC54/8X2
PX1
2
PT0
1
PX0
0
27