參數(shù)資料
型號: ADUC832BSZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 80/92頁
文件大?。?/td> 0K
描述: IC MCU 62K FLASH ADC/DAC 52MQFP
標準包裝: 800
系列: MicroConverter® ADuC8xx
核心處理器: 8052
芯體尺寸: 8-位
速度: 16MHz
連通性: EBI/EMI,I²C,SPI,UART/USART
外圍設(shè)備: PSM,溫度傳感器,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 62KB(62K x 8)
程序存儲器類型: 閃存
EEPROM 大小: 4K x 8
RAM 容量: 2.25K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b,D/A 2x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 52-QFP
包裝: 帶卷 (TR)
Data Sheet
ADuC832
Rev. B | Page 81 of 92
INTERRUPT PRIORITY
The interrupt enable registers are written by the user to enable
individual interrupt sources, whereas the interrupt priority
registers allow the user to select one of two priority levels for
each interrupt. An interrupt of a high priority may interrupt the
service routine of a low priority interrupt, and if two interrupts
of different priority occur at the same time, the higher level
interrupt is serviced first. An interrupt cannot be interrupted by
another interrupt of the same priority level. If two interrupts of
the same priority level occur simultaneously, a polling sequence
is observed, as shown in Table 48.
Table 48. Priority Within an Interrupt Level
Source
Priority
Description
PSMI
1 (highest)
Power supply monitor interrupt
WDS
2
Watchdog timer interrupt
IE0
2
External Interrupt 0
ADCI
3
ADC interrupt
TF0
4
Timer/Counter 0 interrupt
IE1
5
External Interrupt 1
TF1
6
Timer/Counter 1 interrupt
ISPI/I2CI
7
SPI Interrupt/I2C interrupt
RI + TI
8
Serial interrupt
TF2 + EXF2
9 (lowest)
Timer/Counter 2 interrupt
TII
11 (lowest)
Time interval counter interrupt
INTERRUPT VECTORS
When an interrupt occurs, the program counter is pushed onto
the stack and the corresponding interrupt vector address is
loaded into the program counter. The interrupt vector addresses
are shown in Table 49.
Table 49. Interrupt Vector Addresses
Source
Vector Address
IE0
0003H
TF0
000BH
IE1
0013H
TF1
001BH
RI + TI
0023H
TF2 + EXF2
002BH
ADCI
0033H
ISPI/I2CI
003BH
PSMI
0043H
TII
0053H
WDS
005BH
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