Table A-9. IRPTL, IMASK, IMASKP Register Bit Descriptions (Cont'd)
Bit
Name
11
P0I
12
P1I
13
P2I
14
P3I
15
P4I
16
P5I
17
P14I
18
P15I
19
P16I
20
CB7I
21
CB15I
22
TMZLI
23
FIXI
24
FLTOI
25
FLTUI
26
FLTII
27
EMULI
ADSP-2126x SHARC Processor Hardware Reference
Definition
Programmable Interrupt 0. A P0I interrupt occurs when the
default/programmed peripheral sets (= 1) this bit.
Programmable Interrupt 1. See P0I
Programmable Interrupt 2. See P0I
Programmable Interrupt 3. See P0I
Programmable Interrupt 4. See P0I
Programmable Interrupt 5. See P0I
Programmable Interrupt 14. See P0I
Programmable Interrupt 15. See P0I
Programmable Interrupt 16. See P0I
DAG1 Circular Buffer 7 Overflow Interrupt. A circular buffer over-
flow occurs when the DAG circular buffering operation increments the
I7 register past the end of the buffer.
DAG2 Circular Buffer 15 Overflow Interrupt. A circular buffer over-
flow occurs when the DAG circular buffering operation increments the
I15 register past the end of the buffer.
Core Timer Expired (Low Priority) Interrupt. A TMZLI occurs when
the timer decrements to zero. (Refer to TMZHI)
Fixed-Point Overflow Interrupt. Refer to the status registers for the
execution units (ASTATx/y, STKYx/y).
Floating-Point Overflow Interrupt. Refer to the status registers for the
execution units (ASTATx/y, STKYx/y).
Floating-Point Underflow Interrupt. Refer to the status registers for
the execution units (ASTATx/y, STKYx/y).
Floating-Point Invalid Operation Interrupt. Refer to the status regis-
ters for the execution units (ASTATx/y, STKYx/y).
Emulator Low Priority Interrupt. An EMULI occurs during Back-
ground telemetry channels (BTC). This interrupt has a lower priority
than EMUI, but higher priority than software interrupts.
Registers Reference
A-29
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