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CS497004-CQZ Datasheet(PDF) 2 Page - Cirrus Logic |
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CS497004-CQZ Datasheet(HTML) 2 Page - Cirrus Logic |
2 / 36 page 2 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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