Analog Devices SHARC ADSP-214 Series

Interrupt Priority
B-8 ADSP-214xx SHARC Processor Hardware Reference
Priority Interrupt Control Registers (PICRx)
This 32-bit read/write registers, shown in Figure B-1 through Figure B-4,
control programmable priority interrupts and default interrupt sources.
An example is shown below.
Route PWMI to P17I
#include <def21469.h>
ustat1=dm(PICR2);
bit set ustat1 P17I4|P17I3; /*PWMI 0x18, I4-0= 11000*/
bit clr ustat1 P17I2|P17I1|P17I0;
dm(PICR2)=ustat1;
Figure B-1. PICR0 Register
31 302928 27 26 25 24 23 22 21 20 19 18 17 16
00000000000 00000
15 14 13 12 11 10 9 8 76 54 3 210
000000000 00 00000
P5I (29–25)
Programmable Interrupt 1
P1I (9–5)
Programmable Interrupt 5
P4I (24–20)
Programmable Interrupt 4
P3I (19–15)
Programmable Interrupt 3
Programmable interrupt 0
P0I (4–0)
programmable interrupt 2
P2I (14–10)
P3I (19–15)
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