Cirrus-logic CS4953xx Bedienungsanleitung PDF herunterladen (Seite 26)

DS705F2 26

CS4953xx Data Sheet

32-bit 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 ... 21 22 23 24 25 26 27 28 29 30 31 ... 36 37

CS4953xx 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 32-bit DSP Core 7
4.2 On-chip DSP Peripherals 8
4.3 DSP I/O Description 8
5.1 Absolute Maximum Ratings 9
DS705F2 15 15
SCP_MISO 16
SCP_MOSI 16
C Slave Mode 17
C Master Mode 18
DS705F2 20 20
DS705F2 22 22
DAI_SCLK 23
DAI_DATAn 23
DAO_SCLK 25
DAO_LRCLK 25
DS705F2 26 26
DS705F2 27 27
6 Ordering Information 28
8 Device Pinout Diagrams 30
128-pin LQFP 31
(CS495304/CS495314) 31
144-pin LQFP 32
(CS495313) 32
10 Revision History 35
April, 2011 36
August, 2011 36
February, 2012 36
Revision Date Changes 36
DS705F2 37 37

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