Moving Data Between SPORTS and Internal Memory
9-68
ADSP-2126x SHARC Processor Hardware Reference
(
PACK
= 1), the transmit and receive interrupts are generated for the 32-bit
packed words, not for each 16-bit word.
The following sections present an overview of serial port DMA operations;
additional details are covered in the
.
• For information on SPORT DMA Channel Setup, see
Transmit and Receive Channel Order (FRFS)” on page 9-16
.
• For information on SPORT DMA Parameter Registers, see
ing Transmit and Receive Channel Order (FRFS)” on page 9-16
.
• For information on SPORT DMA Chaining, see
Setting Up DMA on SPORT Channels
Each SPORT DMA channel has an Enable bit (
SDEN_A
and
SDEN_B)
in its
SPCTLx
Control register. When DMA is disabled for a particular channel,
the SPORT generates an interrupt every time it receives a data word or
whenever there is a vacancy in the transmit buffer. For more information,
see
“Single Word Transfers” on page 9-73
Each channel also has a DMA Chaining Enable bit (
SCHEN_A
and
SCHEN_B)
in its
SPCTLx
control register.
To set up a serial port DMA channel, write a set of memory buffer param-
eters to the SPORT DMA parameter registers as shown in
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 ...