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AT89C51CC02CA-RATUM Datasheet(PDF) 132 Page - ATMEL Corporation

Part # AT89C51CC02CA-RATUM
Description  Enhanced 8-bit Microcontroller with CAN Controller and Flash
PDF  156 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51CC02CA-RATUM Datasheet(HTML) 132 Page - ATMEL Corporation

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AT/T89C51CC02
4126J–CAN–05/06
Interrupt System
Introduction
The CAN Controller has a total of 10 interrupt vectors: two external interrupts (INT0 and
INT1), three timer interrupts (timers 0, 1 and 2), a serial port interrupt, a PCA, a CAN
interrupt, a timer overrun interrupt and an ADC. These interrupts are shown below.
Figure 56. Interrupt Control System
ECAN
IEN1.0
EX0
IEN0.0
00
01
10
11
External
Interrupt 0
INT0#
EA
IEN0.7
EX1
IEN0.2
External
Interrupt 1
INT1#
ET0
IEN0.1
Timer 0
EC
IEN0.6
PCA
ET1
IEN0.3
Timer 1
ES
IEN0.4
UART
EADC
IEN1.1
A to D
Converter
ETIM
IEN1.2
CAN Timer
CAN
Interrupt Enable
Lowest Priority Interrupts
Highest
Priority Enable
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
Priority
Interrupts
TxDC
RxDC
AIN1:0
IPH/L
Controller
Timer 2
00
01
10
11
ET2
IEN0.5
TxD
RxD
CEX0:1



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