參數(shù)資料
型號： 935263208557
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80
封裝： PLASTIC, QFP-80
文件頁數(shù)： 35/76頁
文件大?。?/td> 567K
代理商： 935263208557
Philips Semiconductors
Product specification
P83C557E4/P80C557E4/P89C557E4
Single-chip 8-bit microcontroller
1999 Mar 02
40
Figure 38. Interrupt priority register (IP1).
7
6
54
321
0
IP1 (F8H)
PT2
PCM2
PCM1
PCM0
PCT3
PCT2
PCT1
PCT0
Table 36.
Description of IP1 bits
SYMBOL
BIT
FUNCTION
PT2
IP1.7
T2 overflow interrupt(s) priority level
PCM2
IP1.6
T2 comparator 2 interrupt priority level
PCM1
IP1.5
T2 comparator 1 interrupt priority level
PCM0
IP1.4
T2 comparator 0 interrupt priority level
PCT3
IP1.3
T2 capture register 3 interrupt priority level
PCT2
IP1.2
T2 capture register 2 interrupt priority level
PCT1
IP1.1
T2 capture register 1 interrupt priority level
PCT0
IP1.0
T2 capture register 0 interrupt priority level
Table 37.
Interrupt Priority Structure
SOURCE
NAME
PRIORITY WITHIN LEVEL
External interrupt 0
X0
(highest)
↑
SIO1 (I2C)
S1
ADC completion
ADC
Timer 0 overflow
T0
Timer 2 capture 0
CT0
Timer 2 compare 0
CM0
External interrupt 1/Seconds interrupt
X1/SEC
Timer 2 capture 1
CT1
Timer 2 compare 1
CM1
Timer 1 overflow
T1
Timer 2 capture 2
CT2
Timer 2 compare 2
CM2
SIO0 (UART)
S0
Timer 2 capture 3
CT3
Timer 2 overflow
T2
↓
(lowest)
Table 38.
Interrupt Vector Addresses
SOURCE
NAME
VECTOR ADDRESS
External interrupt 0
X0
0003H
Timer 0 overflow
T0
000BH
External interrupt 1/Seconds interrupt
X1/SEC
0013H
Timer 1 overflow
T1
001BH
SIO0 (UART)
S0
0023H
SIO1 (I2C)
S1
002BH
Timer 2 capture 0
CT0
0033H
Timer 2 capture 1
CT1
003BH
Timer 2 capture 2
CT2
0043H
Timer 2 capture 3
CT3
004BH
ADC completion
ADC
0053H
Timer 2 compare 0
CM0
005BH
Timer 2 compare 1
CM1
0063H
Timer 2 compare 2
CM2
006BH
Timer 2 overflow
T2
0073H
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