at89lp2052-20xi ATMEL Corporation, at89lp2052-20xi Datasheet - Page 18

• Manufacturer Part Number: at89lp2052-20xi
• Description: At89lp2052 8-bit Microcontroller With 2/4-kbyte Flash
• Manufacturer: ATMEL Corporation

Table 14-2.
Table 14-3.
18
Symbol
EA
EC
ES
ET1
EX1
ET0
EX0
Symbol
PC
PS
PT1
PX1
PT0
PX0
IE = A8H
Bit Addressable
Bit
IP = B8H
Bit Addressable
Bit
AT89LP2052/LP4052
Function
Global enable/disable. All interrupts are disabled when EA = 0. When EA = 1, each interrupt source is enabled/disabled
by setting /clearing its own enable bit.
Comparator Interrupt Enable
Serial Port Interrupt Enable
Timer 1 Interrupt Enable
External Interrupt 1 Enable
Timer 0 Interrupt Enable
External Interrupt 0 Enable
Function
Comparator Interrupt Priority Low
Serial Port Interrupt Priority Low
Timer 1 Interrupt Priority Low
External Interrupt 1 Priority Low
Timer 0 Interrupt Priority Low
External Interrupt 0 Priority Low
IE
IP
– Interrupt Enable Register
– Interrupt Priority Register
EA
7
–
7
EC
PC
6
6
–
5
–
5
ES
PS
4
4
ET1
PT1
3
3
EX1
PX1
2
2
Reset Value = X0X0 0000B
Reset Value = 00X0 0000B
ET0
PT0
1
1
3547H–MICRO–5/07
EX0
PX0
0
0