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CS495313-CVZ

Audio Decoder DSP Family with Dual 32-bit DSP Engine Technology

Cirrus Logic 

CS4953xx Data Sheet

32-bit Audio Decoder DSP Family

Table of Contents

1. Documentation Strategy ...........................................................................................................4

2. Overview ....................................................................................................................................4

2.1 Migrating from CS4953x3 to CS4953x4 ................................................................................................... 5

2.2 Licensing .................................................................................................................................................. 5

3. Code Overlays ...........................................................................................................................5

4. Hardware Functional Description ...........................................................................................7

4.1 Coyote 32-bit DSP Core ........................................................................................................................... 7

4.1.1 DSP Memory ...............................................................................................................................7

4.1.2 DMA Controller ............................................................................................................................7

4.2 On-chip DSP Peripherals ......................................................................................................................... 8

4.2.1 Digital Audio Input Port (DAI) .......................................................................................................8

4.2.2 Digital Audio Output Port (DAO) ..................................................................................................8

4.2.3 Serial Control Port 1 & 2 (I2C™ or SPI™) .....................................................................................8

4.2.4 Parallel Control Port ....................................................................................................................8

4.2.5 External Memory Interface ..........................................................................................................8

Y 4.2.6 GPIO ............................................................................................................................................8

4.2.7 PLL-based Clock Generator ........................................................................................................8

4.3 DSP I/O Description ................................................................................................................................. 8

R 4.3.1 Multiplexed Pins ..........................................................................................................................8

4.3.2 Termination Requirements ...........................................................................................................9

4.3.3 Pads ............................................................................................................................................9

A 4.4 Application Code Security ........................................................................................................................ 9

5. Characteristics and Specifications .......................................................................................10

5.1 Absolute Maximum Ratings .................................................................................................................... 10

IN 5.2 Recommended Operating Conditions .................................................................................................... 10

5.3 Digital DC Characteristics ...................................................................................................................... 10

5.4 Power Supply Characteristics ................................................................................................................ 11

5.5 Thermal Data (144-pin LQFP) ................................................................................................................ 11

5.6 Thermal Data (128-pin LQFP) ................................................................................................................ 11

IM 5.7 Switching Characteristics— RESET ....................................................................................................... 11

5.8 Switching Characteristics — XTI ............................................................................................................ 12

5.9 Switching Characteristics — Internal Clock ............................................................................................ 13

5.10 Switching Characteristics — Serial Control Port - SPI Slave Mode. .................................................... 14

L 5.11 Switching Characteristics — Serial Control Port - SPI Master Mode ................................................... 15

5.12 Switching Characteristics — Serial Control Port - I2C Slave Mode ...................................................... 16

5.13 Switching Characteristics — Serial Control Port - I2C Master Mode .................................................... 17

E 5.14 Switching Characteristics — Parallel Control Port - Intel® Slave Mode .............................................. 18

5.15 Switching Characteristics — Parallel Control Port - Motorola® Slave Mode ....................................... 20

5.16 Switching Characteristics — Digital Audio Slave Input Port ................................................................. 22

R 5.17 Switching Characteristics — DSD® Serial Input Port .......................................................................... 23

5.18 Switching Characteristics — Digital Audio Output Port ........................................................................ 24

P5.19 Switching Characteristics — SDRAM Interface .................................................................................... 25

6. Ordering Information ..............................................................................................................28

7. Environmental, Manufacturing, and Handling Information ................................................29

8. Device Pinout Diagrams .........................................................................................................30

8.1 128-pin LQFP Pinout Diagrams (CS495303/CS495313) ....................................................................... 30

8.2 128-pin LQFP Pinout Diagrams (CS495304/CS495314) ....................................................................... 31

8.3 144-pin LQFP Pinout Diagrams (CS495313) ......................................................................................... 32

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