T89C51CC01 Atmel, T89C51CC01 Datasheet - Page 140

• Manufacturer Part Number: T89C51CC01
• Description: Enhanced 8-Bit Microcontroller
• Manufacturer: Atmel

Interrupt System
Introduction
Figure 63. Interrupt Control System
140
T89C51CC01
CEX0:5
AIN1:0
INT0#
INT1#
RxDC
TxDC
RxD
TxD
CAN Timer
Interrupt 0
Interrupt 1
Converter
controller
External
External
Timer 0
Timer 1
Timer 2
A to D
UART
CAN
PCA
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
IEN0.0
IEN0.1
IEN0.2
IEN0.3
IEN0.6
IEN0.4
IEN0.5
IEN1.0
IEN1.1
ETIM
IEN1.2
Interrupt Enable
EX0
ET0
EX1
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
Lowest Priority Interrupts
Highest
Priority
Interrupts
4129K–CAN–01/05