CS4953xx Data Sheet

32-bit Audio Decoder DSP Family

DS705PP2

®Copyright 2008 Cirrus Logic, Inc.

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8.2 144-Pin LQFP Pinout Diagram ............................................................................................................... 33

9. Package Mechanical Drawings ..............................................................................................34

9.1 128-pin LQFP Package Drawing ............................................................................................................ 34

9.2 144-Pin LQFP Package .......................................................................................................................... 35

10. Revision History ....................................................................................................................36

List of Figures

Figure 1. RESET Timing ........................................................................................................................................12

Figure 2. XTI Timing ..............................................................................................................................................12

Figure 3. Serial Control Port - SPI Slave Mode Timing ..........................................................................................14

Figure 4. Serial Control Port - SPI Master Mode Timing ........................................................................................15

Figure 8. Parallel Control Port - Intel Mode Write Cycle ........................................................................................19

Figure 10. Parallel Control Port - Motorola Mode Write Cycle Timing ...................................................................21

Figure 11. UART Timing ........................................................................................................................................22

Figure 12. Digital Audio Input (DAI) Port Timing Diagram .....................................................................................23

Figure 13. Direct Stream Digital - Serial Audio Input Timing ..................................................................................24

Figure 14. Digital Audio Port Timing, MCLK Master Mode ....................................................................................25

Figure 15. External Memory Interface - Flash Write Cycle Timing .........................................................................27

Figure 16. External Memory Interface - Flash Read Cycle Timing ........................................................................27

Figure 17. External Memory Interface - SDRAM Burst Read Cycle .......................................................................29

Figure 18. External Memory Interface - SDRAM Burst Write Cycle .......................................................................29

Figure 19. External Memory Interface - SDRAM Auto Refresh Cycle ....................................................................30

Figure 20. External Memory Interface - SDRAM Load Mode Register Cycle ........................................................30

Figure 21. 128-Pin LQFP Pin-Out Drawing ............................................................................................................32

Figure 22. 144-Pin LQFP Pin-Out Drawing ............................................................................................................33

Figure 23. 128-Pin LQFP Package Drawing .........................................................................................................34

Figure 24. 144-Pin LQFP Package Drawing .........................................................................................................35

List of Tables

Table 1. CS4953xx Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Table 2. Device and Firmware Selection Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 3. CS495303 DSP Memory Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 4. CS495313 DSP Memory Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 5. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 6. Environmental, Manufacturing, & Handling Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 7. 128-Pin LQFP Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 8. 144-Pin LQFP Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35