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TS80C31X2-VLED Fiches technique(PDF) 18 Page - ATMEL Corporation

No de pièce TS80C31X2-VLED
Description  8-bit CMOS Microcontroller ROMless
PDF  42 Pages
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Fabricant  ATMEL [ATMEL Corporation]
Site Internet  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

TS80C31X2-VLED Fiches technique(HTML) 18 Page - ATMEL Corporation

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Rev. C - 15 January, 2001
TS80C31X2
6.4 Interrupt System
The TS80C31X2 has a total of 5 interrupt vectors: two external interrupts (INT0 and INT1), two timer interrupts
(timers 0 and 1) and the serial port interrupt. These interrupts are shown in Figure 7.
Figure 7. Interrupt Control System
Each of the interrupt sources can be individually enabled or disabled by setting or clearing a bit in the Interrupt
Enable register (See Table 8.). This register also contains a global disable bit, which must be cleared to disable
all interrupts at once.
Each interrupt source can also be individually programmed to one out of four priority levels by setting or clearing
a bit in the Interrupt Priority register (See Table 9.) and in the Interrupt Priority High register (See Table 10.).
shows the bit values and priority levels associated with each combination.
IE1
0
3
High priority
interrupt
Interrupt
polling
sequence, decreasing
from high to low priority
Low priority
interrupt
Global Disable
Individual Enable
TI
RI
TF0
INT0
INT1
TF1
IPH, IP
IE0
0
3
0
3
0
3
0
3



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