ADUC814 Analog Devices, ADUC814 Datasheet - Page 57

• Manufacturer Part Number: ADUC814
• Description: Precision Analog Microcontroller: 1.3MIPS 8052 MCU + 8kB Flash + 6-Ch 12-Bit ADC + Dual 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC814

• Mcu Core: 8052
• Mcu Speed (mips): 1.3
• Sram (bytes): 256Bytes
• Gpio Pins: 17
• Adc # Channels: 6

INTERRUPT SYSTEM
The ADuC814 provides a total of twelve interrupt sources with two priority levels. The control and configuration of the interrupt system
is carried out through three interrupt-related SFRs.
IE
IP
IEIP2
IE
SFR Address
Power-On Default
Bit Addressable
Table 29. IE SFR Bit Designations
Bit No.
7
6
5
4
3
2
1
0
EA
Name
EA
EADC
ET2
ES
ET1
EX1
ET0
EX0
EADC
Description
Global Interrupt Enable.
Set by the user to enable all interrupt sources.
Cleared by the user to disable all interrupt sources.
ADC Interrupt.
Set by the user to enable the ADC interrupt.
Cleared by the user to disable the ADC interrupt.
Timer 2 Interrupt.
Set by the user to enable the Timer 2 interrupt.
Cleared by the user to disable the Timer 2 interrupt.
UART Serial Port Interrupt.
Set by the user to enable the UART serial port interrupt.
Cleared by the user to disable the UART serial port interrupt.
Timer 1 Interrupt.
Set by the user to enable the Timer 1 interrupt.
Cleared by the user to disable the Timer 1 interrupt.
INT1 Interrupt.
Set by the user to enable the External Interrupt 1.
Cleared by the user to disable the External Interrupt 1.
Timer 0 Interrupt.
Set by the user to enable the Timer 0 interrupt.
Cleared by the user to disable the Timer 0 interrupt.
INT0 Interrupt.
Set by the user to enable the External Interrupt 0.
Cleared by the user to disable the External Interrupt 0.
Interrupt Enable Register
Interrupt Priority Register
Secondary Interrupt Enable and Priority Register
Interrupt Enable Register
A8H
00H
Yes
ET2
ES
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ET1
EX1
ET0
ADuC814
EX0