參數(shù)資料
型號(hào)： EVAL-ADUC834QSZ
廠商： Analog Devices Inc
文件頁數(shù)： 58/80頁
文件大?。?/td> 0K
描述： KIT DEV QUICK START ADUC834
標(biāo)準(zhǔn)包裝： 1
系列： QuickStart™ 套件
類型： MCU
適用于相關(guān)產(chǎn)品： ADuC834
所含物品： 評(píng)估板，線纜，電源，軟件和文檔
REV. A
ADuC834
–61–
INTERRUPT SYSTEM
The ADuC834 provides a total of 11 interrupt sources with two priority levels. The control and configuration of the interrupt system
is carried out through three interrupt-related SFRs. These are the IE (Interrupt Enable) Register, the IP (Interrupt Priority Register)
and the IEIP2 (Secondary Interrupt Enable/Priority SFR) Registers. Their bit definitions are given in the Tables XXXV – XXXVII.
IE
Interrupt Enable Register
SFR Address
A8H
Power-On Default Value
00H
Bit Addressable
Yes
Table XXXV. 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
IP
Interrupt Priority Register
SFR Address
B8H
Power-On Default Value
00H
Bit Addressable
Yes
Table XXXVI. IP SFR Bit Designations
Bit
Name
Description
–––
Reserved for Future Use
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)
IEIP2
Secondary Interrupt Enable and Priority Register
SFR Address
A9H
Power-On Default Value
A0H
Bit Addressable
No
Table XXXVII. IEIP2 SFR Bit Designations
Bit
Name
Description
7
–––
Reserved for Future Use
6PTI
Written by User to Select TIC Interrupt Priority (‘1’ = High; ‘0’ = Low)
5
PPSM
Written by User to Select Power Supply Monitor Interrupt Priority (‘1’ = High; ‘0’ = Low)
4PSI
Written by User to Select SPI/I
2C Serial Port Interrupt Priority (‘1’ = High; ‘0’ = Low)
3
–––
Reserved. This Bit Must Be ‘0.’
2
ETI
Written by User to Enable ‘1’ or Disable ‘0’ TIC Interrupt
1EPSM
Written by User to Enable ‘1’ or Disable ‘0’ Power Supply Monitor Interrupt
0
ESI
Written by User to Enable ‘1’ or Disable ‘0’ SPI/I
2C Serial Port Interrupt
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