Cirrus-logic CS4970x4 Bedienungsanleitung PDF herunterladen (Seite 24)

DS752F1 24

CS4970x4 Data Sheet

32-bit High Definition Audio Decoder DSP Family

Figure 15. External Memory Interface - SDRAM Burst Read Cycle

Figure 16. External Memory Interface - SDRAM Burst Write Cycle

SD_CLKOUT

SD_CS#

SD_RAS#

SD_CAS#

SD_WE#

SD_DQMn

SD_An

SD_Dn

sddsu

sdclkrf

sdcmdv

sdav

sddqv

sdcmdh

sddh

sddqh

CAS=2

LSP0 MSP0

LSP3 MSP3

SD_CLKIN

sdclkl

sdclkh

LSP1 MSP1 LSP2 MSP2

SD_CLKOUT

SD_CS#

SD_RAS#

SD_CAS#

SD_WE#

sdcmdv

sdcmdh

SD_Dn

LSP0 MSP0 LSP1 MSP1 LSP2 MSP2 LSP3 MSP3

SD_An

SD_DQMn

sddqh

00 11

sddqv

sdav

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 30 31

CS4970x4 Data Sheet 1
Table of Contents 2
List of Figures 3
List of Tables 3
1 Documentation Strategy 4
2 Overview 4
3 Code Overlays 5
4.1 Coyote DSP Core 6
4.2 On-chip DSP Peripherals 7
4.3 DSP I/O Description 8
5.1 Absolute Maximum Ratings 8
DS752F1 12 12
Internal DCLK frequency 12
Internal DCLK period 12
SCP_MISO 14
SCP_MOSI 14
C Slave Mode 15
C Master Mode 16
DS752F1 18 18
DAI_SCLK 21
DAI_DATAn 21
DAO_SCLK 23
DAO_LRCLK 23
DS752F1 24 24
DS752F1 25 25
DS752F1 26 26
6 Ordering Information 27
CS497xx4 28
9 Package Mechanical Drawings 29
10 Revision History 30
DS752F1 31 31

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