
Core Registers
A-30
ADSP-2126x SHARC Processor Hardware Reference
Interrupt Register (LIRPTL)
The
LIRPTL
register is a non-memory-mapped, universal, system register
(
Ureg
and
Sreg
). The
LIRPTL
register indicates latch status, select masking,
and displays mask pointers for interrupts.
and
pro-
vide bit definitions for the
LIRPTL
register.
The
MSKP
bits in the
LIRPTL
register, and the entire
IMASKP
register
are for interrupt controller use only. Modifying these bits interferes
with the proper operation of the interrupt controller.
The programmable interrupt latch bits (P6I–P13I, P17I, P18I) are con-
trolled through the programmable interrupt controller registers (
PICRx
).
The descriptions provided are their default source. For information on
their optional use, see “Programmable Interrupt Priority Control Regis-
ters” in the product related hardware reference.
28
SFT0I
User Software Interrupt 0.
An SFT0I occurs when a program sets
(= 1) this bit.
29
SFT1I
User Software Interrupt 1.
See SFT01.
30
SFT2I
User Software Interrupt 2.
See SFT01.
31
SFT3I
User Software Interrupt 3.
See SFT01. Lowest priority.
1 The SPERRI interrupt (bit 5) is reserved for ADSP-21362/3/4/5/6 SHARC processors.
Table A-9. IRPTL, IMASK, IMASKP Register Bit Descriptions (Cont’d)
Bit
Name
Definition
Summary of Contents for ADSP-21261 SHARC
Page 30: ...Contents xxx ADSP 2126x SHARC Processor Hardware Reference ...
Page 40: ...Register Diagram Conventions xl ADSP 2126x SHARC Processor Hardware Reference ...
Page 58: ...Differences From Previous SHARCs 1 18 ADSP 2126x SHARC Processor Hardware Reference ...
Page 112: ...Secondary Processing Element PEy 2 54 ADSP 2126x SHARC Processor Hardware Reference ...
Page 178: ...Summary 3 66 ADSP 2126x SHARC Processor Hardware Reference ...
Page 204: ...DAG Instruction Summary 4 26 ADSP 2126x SHARC Processor Hardware Reference ...
Page 322: ...Setting Up DMA 7 32 ADSP 2126x SHARC Processor Hardware Reference ...
Page 436: ...SPORT Programming Examples 9 86 ADSP 2126x SHARC Processor Hardware Reference ...
Page 521: ...ADSP 2126x SHARC Processor Hardware Reference 11 31 Input Data Port rts IDP_ISR end ...
Page 522: ...Input Data Port Programming Example 11 32 ADSP 2126x SHARC Processor Hardware Reference ...
Page 590: ...Timer Programming Examples 14 20 ADSP 2126x SHARC Processor Hardware Reference ...
Page 796: ...I O Processor Registers A 174 ADSP 2126x SHARC Processor Hardware Reference ...
Page 800: ...B 4 ADSP 2126x SHARC Processor Core Manual ...
Page 846: ...Index I 36 ADSP 2126x SHARC Processor Hardware Reference ...