參數(shù)資料
型號(hào)： ADUC812BSZ-REEL
廠商： Analog Devices Inc
文件頁數(shù)： 32/57頁
文件大?。?/td> 0K
描述： IC MCU FLASH 12BIT ADC 52MQFP
標(biāo)準(zhǔn)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： 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(chǔ)器容量： 8KB（8K x 8）
程序存儲(chǔ)器類型： 閃存
EEPROM 大小： 640 x 8
RAM 容量： 256 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 ~ 85°C
封裝/外殼： 52-QFP
包裝： 帶卷 (TR)
REV.
ADuC812
–38–
INTERRUPT SYSTEM
The ADuC812 provides a total of nine interrupt sources with two priority levels. The control and configuration of the interrupt system
is carried out through three interrupt related SFRs.
IE
Interrupt Enable Register
IP
Interrupt Priority Register
IE2
Secondary Interrupt Enable Register
Interrupt Enable
IE
Register
SFR Address
A8H
Power-On Default Value
00H
Bit Addressable
Yes
A
EC
D
A
E2
T
ES
E1
T
E1
X
E0
T
E0
X
E
Table XXII. IE SFR Bit Designations
Bit
Name
Description
7
EA
Written by user to enable “1” or disable “0” all interrupt sources.
6
EADC
Written by user to enable “1” or disable “0” ADC interrupt.
5
ET2
Written by user to enable “1” or disable “0” Timer 2 interrupt.
4
ES
Written by user to enable “1” or disable “0” UART serial port interrupt.
3
ET1
Written by user to enable “1” or disable “0” Timer 1 interrupt.
2
EX1
Written by user to enable “1” or disable “0” External Interrupt 1.
1
ET0
Written by user to enable “1” or disable “0” Timer 0 interrupt.
0
EX0
Written by user to enable “1” or disable “0” External Interrupt 0.
Interrupt Priority
IP
Register
SFR Address
B8H
Power-On Default Value
00H
Bit Addressable
Yes
I
S
PC
D
A
P2
T
PS
P1
T
P1
X
P0
T
P0
X
P
Table XXIII. IP SFR Bit Designations
Bit
Name
Description
7
PSI
Written by user to select I
2C/SPI priority (“1” = High; “0” = Low).
6
PADC
Written by user to select ADC interrupt priority (“1” = High; “0” = Low).
5
PT2
Written by user to select Timer 2 interrupt priority (“1” = High; “0” = Low).
4
PS
Written by user to select UART serial port interrupt priority (“1” = High; “0” = Low).
3
PT1
Written by user to select Timer 1 interrupt priority (“1” = High; “0” = Low).
2
PX1
Written by user to select External Interrupt 1 priority (“1” = High; “0” = Low).
1
PT0
Written by user to select Timer 0 interrupt priority (“1” = High; “0” = Low).
0
PX0
Written by user to select External Interrupt 0 priority (“1” = High; “0” = Low).
F
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