
ADSP-2126x SHARC Processor Hardware Reference
A-33
Registers Reference
Program Counter Register (PC)
The
PC
register is a non-memory-mapped, universal register (
Ureg
only).
The Program Counter register is the last stage in the fetch-decode-execute
instruction pipeline and contains the 24-bit address of the instruction that
the DSP executes on the next cycle. The
PC
couples with the Program
Counter Stack,
PCSTK
, which stores return addresses and top-of-loop
addresses. All addresses generated by the sequencer are 24-bit program
memory instruction addresses.
As shown in
, the address buses can handle 32-bit addresses,
but the program sequencer only generates 24-bit addresses over the PM
bus.
21
P7IMSKP
Programmable Interrupt Mask Pointer 7.
See P6IMSKP.
22
P8IMSKP
Programmable Interrupt Mask Pointer 8.
See P6IMSKP.
23
P9IMSKP
Programmable Interrupt Mask Pointer 9
. See P6IMSKP.
24
P10IMSKP
Programmable Interrupt Mask Pointer 10.
See P6IMSKP.
25
P11IMSKP
Programmable Interrupt Mask Pointer 11.
See P6IMSKP.
26
P12IMSKP
Programmable Interrupt Mask Pointer 12.
See P6IMSKP.
27
P13IMSKP
Programmable Interrupt Mask Pointer 13.
See P6IMSKP.
28
P17IMSKP
Programmable Interrupt Mask Pointer 17.
See P6IMSKP.
29
P18MSKP
Programmable Interrupt Mask Pointer 18.
See P6IMSKP.
31–30
Reserved
Table A-10. LIRPTL Register Bit Descriptions (Cont’d)
Bit
Name
Definition
Содержание ADSP-21261 SHARC
Страница 30: ...Contents xxx ADSP 2126x SHARC Processor Hardware Reference ...
Страница 40: ...Register Diagram Conventions xl ADSP 2126x SHARC Processor Hardware Reference ...
Страница 58: ...Differences From Previous SHARCs 1 18 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 112: ...Secondary Processing Element PEy 2 54 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 178: ...Summary 3 66 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 204: ...DAG Instruction Summary 4 26 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 322: ...Setting Up DMA 7 32 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 436: ...SPORT Programming Examples 9 86 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 521: ...ADSP 2126x SHARC Processor Hardware Reference 11 31 Input Data Port rts IDP_ISR end ...
Страница 522: ...Input Data Port Programming Example 11 32 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 590: ...Timer Programming Examples 14 20 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 796: ...I O Processor Registers A 174 ADSP 2126x SHARC Processor Hardware Reference ...
Страница 800: ...B 4 ADSP 2126x SHARC Processor Core Manual ...
Страница 846: ...Index I 36 ADSP 2126x SHARC Processor Hardware Reference ...