at89lp216-20xi ATMEL Corporation, at89lp216-20xi Datasheet - Page 20
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at89lp216-20xi
Manufacturer Part Number
at89lp216-20xi
Description
At89lp216 8-bit Microcontroller With 2k Bytes Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89LP216-20XI.pdf
(90 pages)
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Figure 12-1. Minimum Interrupt Response Time
Figure 12-2. Maximum Interrupt Response Time
Table 12-2.
20
Symbol
EA
EC
EGP
ES
ET1
EX1
ET0
EX0
IE = A8H
Bit Addressable
Bit
AT89LP216
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
General-purpose Interrupt Enable
Serial Port Interrupt Enable
Timer 1 Interrupt Enable
External Interrupt 1 Enable
Timer 0 Interrupt Enable
External Interrupt 0 Enable
IE – Interrupt Enable Register
EA
7
Clock Cycles
Clock Cycles
.
Instruction
Instruction
EC
6
INT0
INT0
IE0
IE0
Cur. Instr.
EGP
5
Ack.
1
1
RETI
LCALL
ES
4
4 Cyc. Instr.
Ack.
5
1st ISR Instr.
ET1
3
LCALL
EX1
2
Reset Value = 0000 0000B
13
1st ISR In
ET0
1
3621B–MICRO–11/07
EX0
0
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