AT89C51CC03CA-7CTUM ATMEL [ATMEL Corporation], AT89C51CC03CA-7CTUM Datasheet - Page 161
AT89C51CC03CA-7CTUM
Manufacturer Part Number
AT89C51CC03CA-7CTUM
Description
Enhanced 8-bit MCU with CAN Controller and Flash Memory
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51CC03CA-7CTUM.pdf
(197 pages)
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Interrupt System
Introduction
Figure 77. Interrupt Control System
4182K–CAN–05/06
CEX0:5
AIN1:0
INT0#
INT1#
RxDC
TxDC
RxD
TxD
CAN Timer
Interrupt 0
Interrupt 1
Converter
controller
Controller
External
External
Timer 0
Timer 1
Timer 2
A to D
UART
PCA
CAN
SPI
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.
ECAN
EADC
IEN1.0
IEN1.1
ETIM
IEN1.2
Interrupt Enable
IEN0.0
IEN0.1
IEN0.2
IEN0.3
IEN0.6
IEN0.4
IEN0.5
ESPI
IEN1.3
EX0
EX1
ET0
ET1
ET2
EC
ES
IEN0.7
EA
Priority Enable
IPH/L
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
00
01
10
11
00
01
10
11
00
01
10
11
Lowest Priority Interrupts
AT89C51CC03
Highest
Priority
Interrupts
161
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