參數(shù)資料
型號(hào)： ADUC812BCPZ-REEL
廠商： ANALOG DEVICES INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 11.0592 MHz, MICROCONTROLLER, PQCC56
封裝： LEAD FRAME, CSP-56
文件頁(yè)數(shù)： 32/60頁(yè)
文件大?。?/td> 1276K
代理商： ADUC812BCPZ-REEL
REV. E
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
7EAWritten 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.
4ESWritten 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).
4PSWritten 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).
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