XA-SK-AUDIO

XA-SK-AUDIO Slice Card Hardware Guide REV A Publication Date: 2012/10/23 XMOS © 2012, All Rights Reserved. XA-SK-AUDIO Slice Card Hardware Guide 2/4 Table of Contents 1 Slice Card Overview 1.1 Pack Contents . 1.2 4 Channel Audio 1.3 MIDI . . . . . . . 1.4 SPDIF Transmit . . . . . . . . . . . . . . . . . . . . . 2 XA-SK-AUDIO Functional Pins REV A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 3 3 3 4 1 Slice Card Overview IN THIS CHAPTER · Pack Contents · 4 Channel Audio · MIDI · SPDIF Transmit 1.1 Pack Contents · One XA-SK-AUDIO Slice Card 1.2 4 Channel Audio Four input and four output channels are provided on the Slice Card via an I2S interface to two CS4270 stereo audio codecs with a shared 2-wire bus for configuration. The xSOFTip I2S driver component drives all 4 channels in both directions at sample rates up to 192 KHz and takes care of codec configuration. Audio clock generation is provided via a CS2100-CP programmable PLL. 1.3 MIDI MIDI In and MIDI out connectors are provided. A stand alone MIDI xSOFTip component to work with this Slice Card is under development. 1.4 SPDIF Transmit An SPDIF digital audio output is provided on the board. A stand alone SPDIF transmit xSOFTip component to work with this Slice Card is under development. REV A XA-SK-AUDIO Slice Card Hardware Guide 4/4 2 XA-SK-AUDIO Functional Pins This table shows the port mapping for each of the Slice Card Signal IO, and the Slicekit Slot connector pin it is located on. Function TRIANGLE CIRCLE PIN Description BCLK DAC_DATA0 MCLK LRCLK SPDIF_OUT UART_RX I2C_SCL MIDI_IN MCLK_FSEL CODEC_RST_N LED SCL SDA DAC_DATA1 PLL_SYNC MIDI OIUT 1A 1D 1E 1H 1K 1I 1L 1J 4E1 4E2 4E3 4F0 4F1 8D0 1P 8D7 1A 1D 1E 1H 1K 1I 1L 1J 4E1 4E2 4E3 4F0 4F1 1M 1P NC B2 B4 A3 A4 B10 B15 A15 A8 B7 A6 A7 B9 B11 B12 B18 A13 I2S Bit Clock I2S DAC DATA Channel 0 I2S Master Clock I2S LR Clock SPDIF transmit I2S ADC DATA Channel 0 I2S ADC DATA Channel 1 From MIDI Connector MCLK Function Select Codec Reset User LED output I2C clock for codec configuration I2C data for codec configuration I2S DAC DATA Channel 1 PLL To MIDI connector Copyright © 2012, All Rights Reserved. Xmos Ltd. is the owner or licensee of this design, code, or Information (collectively, the “Information”) and is providing it to you “AS IS” with no warranty of any kind, express or implied and shall have no liability in relation to its use. Xmos Ltd. makes no representation that the Information, or any particular implementation thereof, is or will be free from any claims of infringement and again, shall have no liability in relation to any such claims. XMOS and the XMOS logo are registered trademarks of Xmos Ltd. in the United Kingdom and other countries, and may not be used without written permission. All other trademarks are property of their respective owners. Where those designations appear in this book, and XMOS was aware of a trademark claim, the designations have been printed with initial capital letters or in all capitals. REV A