XCORE.aI at a glance
| Part Number | Package | IO voltage | IO | External Interfaces | Datasheet | Buy |
|---|---|---|---|---|---|---|
| XU316-1024-QF60A | 60pin QFN (7x7mm) | 1v8 | 34 | USB | DATASHEET | |
| XU316-1024-QF60B | 60pin QFN (7x7mm) | 3v3 | 34 | USB | DATASHEET | |
| XU316-1024-FB265 | 265pin FBGA (14x14mm) | 1V8 / 3V3 | 128 | USB, Single or Dual lane MIPI D-PHY receiver, LPDDR1 | DATASHEET | |
| XU316-1024-TQ128 | 128pin TQFP (14x14mm) | 1V8 / 3V3 | 78 | USB, Single or Dual lane MIPI D-PHY receiver | DATASHEET | |
Getting Started
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XCORE.AI Evaluation Kit
The xcore.ai evaluation kit allows testing in multiple application scenarios and provides a good general software development board for simple tests and demos. It includes:
- the xcore.ai crossover processor
- 4 general purpose LEDs
- 2 general purpose push-button switches
- a PDM microphone connector
- audio codec with line-in and line-out jack
- QSPI flash memory
- LPDDR1 external memory
- 58 GPIO connections from tile 0 and 1
- micro USB for power and host connection
- MIPI connector for a MIPI camera
- xSYS2 connector for debug adapter
- a reset switch with LED to indicate running.
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XCORE.AI Multichannel Audio Board
The xcore.ai multichannel audio board includes support for full and high-speed USB operation, USB Audio Class 2.0 & 1.0, MIDI, HID & DFU classes.
The board integrates four stereo audio DACs and two quad channel audio ADCs supporting eight simultaneous bi-directional audio streams. It also includes electrical and optical interfaces for S/PDIF and MIDI In and Out ports.
An integrated XTAG4 enables debug with JTAG and XTC tools.
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Voice Reference Design Evaluation Kit
The voice reference design evaluation kit can be used as a Raspberry Pi HAT for integration with example AVS client or used standalone as a USB accessory to a host system.
Features include:
- XU316-1024-QF60A-C24 xcore.ai processor
- Raspberry Pi HAT connector
- 2 x Infineon IM69D130 MEMS mics
- 71mm inter-mic spacing
- Microphone mute switch
- Speaker output (Line level)
- USB / I2S host interface support
Developer Resources
| Title | Version | Date | Download |
|---|---|---|---|
| The XMOS XS3 Architecture | 2025-03-06 | html | |
| Tools 15 - Documentation | 15.3.0 | 2024-07-26 | tgz |
| XU316-1024 xcore.ai Datasheet | 2.0.0 | 2025-01-13 | html |
| XU316-1024-FB265 Datasheet | 2.0.0 | 2025-01-13 | html |
| XU316-1024-QF60A Datasheet | 2.0.0 | 2025-01-13 | html |
| XU316-1024-QF60B Datasheet | 2.0.0 | 2025-01-13 | html |
| XU316-1024-TQ128 Datasheet | 2.0.0 | 2025-01-13 | html |
| xcore.ai FB265 package port map | 1.0 | 2025-03-11 | xls |
| xcore.ai I/O Timings | 2024-10-21 | html | |
| xcore.ai Package port map | 2024-04-03 | xls | |
| xcore.ai Product brief | 7.0 | 2025-06-26 | |
| xcore.ai QF60A/B package port map | 1.0 | 2025-03-11 | xls |
| xcore.ai TQ128 package port map | 1.0 | 2025-03-11 | xls |
| Name | Title | Version | Date |
|---|---|---|---|
| AN02011 | USB Audio with concurrent multi-threaded DSP Shows how to add parallel DSP to USB Audio |
1.0.0 | 2025-01-22 |
| AN00162 | Implementing an I2S loopback using the lib_i2s library I2S master digital loopback |
2.0.1 | 2025-03-19 |
| AN02019 | Using Device Firmware Upgrade (DFU) in USB Audio DFU in USB Audio applications |
1.0.0 | 2024-12-16 |
| AN02003 | SPDIF/ADAT/I²S Slave Receive to I²S Slave Bridge with ASRC This note describes building an SPDIF/ADAT/I²S slave to I²S converter using ASRC |
1.1.0 | 2024-11-21 |
| AN02034 | Making your own sample rate converter on XCORE Shows how to make a down sampler using |
1.0.0 | 2025-01-22 |
| AN02015 | Run-time DSP control in a USB Audio Application Adding run-time control to the DSP in a USB audio application with an active speaker example. |
2.0.1 | 2025-07-01 |
| AN02031 | Live Streaming Sound Card Example Live streaming sound card example |
2.0.0 | 2025-07-10 |
| AN02014 | Integrating DSP into the XMOS USB reference design USB audio application with generated DSP |
2.0.1 | 2025-07-01 |
| AN02016 | Integrating Audio Weaver (AWE) Core into USB Audio USB Audio application with AWE stack |
1.0.2 | 2024-08-22 |
| Name | Title | Version | Date |
|---|---|---|---|
| AN02021 | Using external memory with XCORE.AI This note describes how to use external memory on XCORE.AI |
1.0.0 | 2024-10-16 |
| AN02022 | xcore.ai Clock Frequency Control How to control xcore.ai PLL's |
1.1.0 | 2024-09-23 |
| AN02023 | xcore.ai Power Consumption Estimation This note describes how to estimate power consumption of xcore.ai based applications |
1.0.0 | 2024-09-26 |
| Name | Title | Version | Date |
|---|---|---|---|
| AN00136 | USB Vendor Specific Device Example custom USB device demonstrating bulk transfers |
3.0.0 | 2024-11-07 |
| AN00125 | USB Mass Storage Device Class An example how to implement Mass Storage on XCORE |
3.0.0 | 2025-03-26 |
| AN00131 | USB CDC-ECM Class for Ethernet over USB An example that runs a Ethernet over USB |
3.1.0 | 2025-07-01 |
| AN00127 | USB Video Class Device Example USB device implementing USB Video class |
3.1.0 | 2025-07-01 |
| AN00124 | USB CDC Class as Virtual Serial Port Shows how to use lib_xud to implement a UART over USB |
3.1.0 | 2016-01-08 |
| AN02030 | Improving IO response times using FAST or PRIORITY modes This app note shows the effects of using FAST and PRIORITY mode |
1.0.0 | 2024-11-21 |
| AN02007 | Calculating Cyclic Redundancy Checks (CRC) on XCORE This note explains how to calculate a CRC |
1.0.0 | 2025-04-07 |
| AN02039 | Ports, Pins, and the XN file The relationship between pins, ports, and the XN file |
1.0.0 | 2025-02-26 |
| AN03007 | XCORE Ports An overview of XMOS ports |
1.0.0 | 2025-03-10 |
| AN02036 | Making an LED glow with Pulse Density Modulation Making a LED glow using various algorithms |
1.0.0 | 2025-03-10 |
| AN03000 | XCORE Input and Output This app note descibes input and output from and to ports. |
1.0.0 | 2025-03-12 |
| AN03003 | XCORE Port Serialisation and Strobing This app note shows how to serialise data on ports |
1.0.0 | 2025-03-10 |
| AN03001 | XCORE Clocked Input and Output This app note describeds clocked input and output |
1.0.0 | 2025-03-12 |
| AN03002 | XCORE Port Buffering How to decouple port operations using buffering |
1.0.0 | 2025-03-10 |
| AN02045 | Using the watchdog on xcore Shows the use of a watchdog timer |
1.0.0 | 2025-06-05 |
| Name | Description | Version | Date |
|---|---|---|---|
| lib_adat | ADAT Lightpipe digital audio interface | 2.0.1 | 2024-11-06 |
| lib_sw_pll | PLL functionality using a combination of software and on-device PLL | 2.3.1 | 2024-10-18 |
| lib_audio_dsp | Audio DSP Library for xcore.ai | 1.4.0 | 2025-06-30 |
| lib_xua | USB Audio components library | 5.1.0 | 2025-07-08 |
| lib_i2s | I²S/TDM controller (“master”) and target (“slave”) | 6.0.1 | 2024-11-13 |
| lib_spdif | S/PDIF transmitter and receiver | 6.2.1 | 2016-08-02 |
| lib_src | SSRC/ASRC for xcore | 2.7.0 | 2024-11-06 |
| lib_awe | Audio Weaver (AWE) Core for xcore | 1.0.1 | 2024-08-15 |
| Name | Description | Version | Date |
|---|---|---|---|
| lib_gpio | GPIO abstraction for multibit ports | 2.2.0 | 2025-06-24 |
| lib_xcore_math | VPU-optimized math for the xcore architecture | 2.4.0 | 2024-11-06 |
| lib_xud | USB device library | 3.0.1 | 2025-07-01 |
| lib_mic_array | PDM microphone array library | 5.5.0 | 2024-11-07 |
| lib_qadc | Resistor reading library | 1.0.0 | 2024-11-26 |
| lib_board_support | Support library for XMOS development kits | 1.3.0 | 2025-06-30 |
| lib_i2c | I²C controller and peripheral library | 6.4.0 | 2024-11-11 |
| lib_random | Random number generation | 1.3.0 | 2025-06-30 |
| lib_xassert | Lightweight assertions library | 4.3.1 | 2024-10-15 |
| lib_logging | Debug printing | 3.3.1 | 2024-10-14 |
| lib_locks | Lock handling library | 2.3.1 | 2024-11-11 |
| lib_otpinfo | OTP reading library | 2.2.0 | 2025-03-12 |
| Name | Description | Version | Date |
|---|---|---|---|
| lib_ethernet | XMOS Ethernet Library | 4.0.1 | 2025-03-18 |
| Name | Description | Version | Date |
|---|---|---|---|
| lib_camera | Camera Library | 2.0.0 | 2025-07-01 |
| Title | Version | Date | Download |
|---|---|---|---|
| USB Audio User Guide | 9.1.0 | 2025-07-08 | html |
| XK-VOICE-L71 Hardware Manual | 2023-04-12 | html | |
| XK-VOICE-L71 PCB Design files | v1.0 | 2021-11-11 | zip |
| XU316-1024-TQ128 Datasheet | 2.0.0 | 2025-01-13 | html |
| xcore.ai Evaluation Kit Altium and Manufacturing files | 2.0 | 2022-07-19 | zip |
| xcore.ai Evaluation Kit Quick Start | 2022-07-21 | ||
| xcore.ai Evaluation Kit Schematics | 2.0 | 2022-07-26 | |
| xcore.ai Evaluation Kit v2.0 hardware manual | 2V0 | 2024-02-12 | |
| xcore.ai Multichannel Audio Platform Design Files | 1V1 | 2022-11-22 | zip |
| xcore.ai Multichannel Audio Platform Hardware Manual | 1.1.1 | 2025-03-04 | html |