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CS4970X4 Datasheet(PDF) 2 Page - Cirrus Logic

Part No. CS4970X4
Description  32-bit High Definition Audio Decoder DSP Family
Download  36 Pages
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
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CS4970X4 Datasheet(HTML) 2 Page - Cirrus Logic

 
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Copyright 2008 Cirrus Logic
DS752PP7
CS4970x4 Data Sheet
32-bit High Definition Audio Decoder DSP Family
Table of Contents
1. Documentation Strategy ................................................................................................................ 4
2. Overview .......................................................................................................................................... 4
2.1 Migrating from the CS495xx(2) to the CS4970x4 ........................................................................................... 6
2.2 Licensing ......................................................................................................................................................... 6
3. Code Overlays ................................................................................................................................. 6
4. Hardware Functional Description ................................................................................................. 7
4.1 DSP Core ........................................................................................................................................................ 7
4.1.1 DSP Memory ...................................................................................................................................... 7
4.1.2 DMA Controller ................................................................................................................................... 7
4.2 On-chip DSP Peripherals ................................................................................................................................ 7
4.2.1 Digital Audio Input Port (DAI) ............................................................................................................. 7
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
4.2.6 GPIO .................................................................................................................................................. 8
4.2.7 PLL-based Clock Generator ............................................................................................................... 8
4.3 DSP I/O Description ........................................................................................................................................ 8
4.3.1 Multiplexed Pins ................................................................................................................................. 8
4.3.2 Termination Requirements ................................................................................................................. 8
4.3.3 Pads ................................................................................................................................................... 9
4.4 Application Code Security ............................................................................................................................... 9
5. Characteristics and Specifications ............................................................................................. 10
5.1 Absolute Maximum Ratings .......................................................................................................................... 10
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 Switching Characteristics— RESET ............................................................................................................. 12
5.7 Switching Characteristics — XTI .................................................................................................................. 12
5.8 Switching Characteristics — Internal Clock .................................................................................................. 13
5.9 Switching Characteristics — Serial Control Port - SPI Slave Mode .............................................................. 13
5.10 Switching Characteristics — Serial Control Port - SPI Master Mode .......................................................... 14
5.11 Switching Characteristics — Serial Control Port - I2C Slave Mode ............................................................. 15
5.12 Switching Characteristics — Serial Control Port - I2C Master Mode .......................................................... 16
5.13 Switching Characteristics — Parallel Control Port - Intel Slave Mode ........................................................ 17
5.14 Switching Characteristics — Parallel Control Port - Motorola Slave Mode ................................................ 19
5.15 Switching Characteristics — UART ............................................................................................................ 21
5.16 Switching Characteristics — Digital Audio Slave Input Port ....................................................................... 22
5.17 Switching Characteristics — Direct Stream Digital Slave Input Port ........................................................... 23
5.18 Switching Characteristics — Digital Audio Output Port ............................................................................... 24
5.19 Switching Characteristics — SDRAM Interface .......................................................................................... 25
6. Ordering Information .................................................................................................................... 30
7. Environmental, Manufacturing, and Handling Information ..................................................... 30
8. Device Pin-Out Diagram ............................................................................................................... 31
8.1 128-Pin LQFP Pin-Out Diagram ................................................................................................................... 31
8.2 144-Pin LQFP Pin-Out Diagram .................................................................................................................. 32


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