DSP56721 datasheet(42/54 Pages) FREESCALE

Part #	DSP56721

Description	SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors

PDF	54 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors, Rev.1

Freescale Semiconductor

Figure 35. HDI24 Host DMA Read Timing Diagram

2.2.10

S/PDIF Timing

See Table 19 for Sony/Philips Digital Interconnect Format (S/PDIF) timing parameters and Figure 36 and Figure 37 for timing

diagrams.

Table 19. S/PDIF Timing Parameters

Characteristics

Symbol

All Frequency

Unit

Min

Max

SPDIFIN1, SPDIFIN2, SPDIFIN3, SPDIFIN4 Skew:

asynchronous inputs, no specs apply

––

0.7

SPDIFOUT1,SPDIFOUT2 output (Load = 50 pf)

•Skew

• Transition Risng

• Transition Falling

–

1.5

24.2

31.3

SPDIFOUT1, SPDIFOUT2 output (Load = 30 pf)

•Skew

• Transition Risng

• Transition Falling

–

1.5

13.6

18.0

SRCK period

srckp

40.0

–

SRCK high period

srckph

16.0

–

SRCK low period

srckpl

16.0

–

STCLK period

stclkp

40.0

–

STCLK high period

stclkph

16.0

–

STCLK low period

stclkpl

16.0

–

326

317

318

327

328

329

HOREQ

(Output)

HACK

(Input)

H0-H23

(Output)

Data

Valid

RXH

Read

342

343

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