aduc7062 Analog Devices, Inc., aduc7062 Datasheet - Page 58

• Manufacturer Part Number: aduc7062
• Description: Low-power, Precision Analog Microcontroller, Dual ?-? Adcs, Flash/ee, Arm7tdmi
• Manufacturer: Analog Devices, Inc.

ADuC7060/ADuC7061/ADuC7062
External Interrupts (IRQ0 to IRQ3)
The ADuC706x provides up to four external interrupt sources.
These external interrupts can be individually configured as level
or rising/falling edge triggered.
To enable the external interrupt source, first of all, the
appropriate bit must be set in the FIQEN or IRQEN register. To
select the required edge or level to trigger on, the IRQCONE
register must be appropriately configured.
To properly clear an edge based external IRQ interrupt, set the
appropriate bit in the EDGELEVELCLR register.
Table 71. IRQCONEMMR Bit Designations
Bit
31:8
7:6
5:4
3:2
1:0
Value
11
10
01
00
11
10
01
00
11
10
01
00
11
10
01
00
Name
Reserved
IRQ3SRC[1:0]
IRQ2SRC[1:0]
IRQ1SRC[1:0]
IRQ0SRC[1:0]
These bits are reserved and should not be written to.
External IRQ3 triggers on falling edge
External IRQ2 triggers on falling edge
External IRQ1 triggers on falling edge
External IRQ0 triggers on falling edge
Description
External IRQ3 triggers on rising edge
External IRQ3 triggers on low level
External IRQ3 triggers on high level
External IRQ2 triggers on rising edge
External IRQ2 triggers on low level
External IRQ2 triggers on high level
External IRQ1 triggers on rising edge
External IRQ1 triggers on low level
External IRQ1 triggers on high level
External IRQ0 triggers on rising edge
External IRQ0 triggers on low level
External IRQ0 triggers on high level
Rev. PrA | Page 58 of 100
IRQCONE Register
Name:
Address:
Default value:
Access:
Preliminary Technical Data
IRQCONE
0xFFFF0034
0x00000000
Read and write