Rainbow-electronics T89C51CC01 Bedienungsanleitung PDF herunterladen (Seite 125)

125

T89C51CC01

Rev. D – 17-Dec-01

18. Interrupt System

18.1 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 55. Interrupt Control System

ECAN

IEN1.0

EX0

IEN0.0

External

Interrupt 0

INT0#

IEN0.7

EX1

IEN0.2

External

Interrupt 1

INT1#

ET0

IEN0.1

Timer 0

IEN0.6

PCA

ET1

IEN0.3

Timer 1

IEN0.4

UART

EADC

IEN1.1

AtoD

Converter

ETIM

IEN1.2

CAN Timer

CAN

Interrupt Enable Lowest Priority Interrupts

Highest

Priority Enable

Priority

Interrupts

TxDC

RxDC

AIN1:0

IPH/L

controller

Timer 2

ET2

IEN0.5

TxD

RxD

CEX0:5

1 2 ... 120 121 122 123 124 125 126 127 128 129 130 ... 148 149

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