Keil Logo

Cypress EZ-USB (AN21XX)

The Cypress EZ-USB (AN21XX) is a High-speed 8051-based USB Device with Two UARTs, Dual DPTRs, 13 Interrupts / 4 Priority Levels, 24 I/O Lines, 3 Timers/Counters, 3.3V Operation, ROMless, 256 Bytes On-chip RAM, and 4K or 8K Bytes XRAM.

[Chip Vendor] [Distributors]

Development Tools
Compiler, Assembler, Linker, Debugger
Evaluation Boards
Data Sheets
Technical Reference Manual for the Cypress EZ-USB (AN21XX)
Technical Reference Manual
1,835,473 bytes

Get Adobe Acrobat Reader

Header Files
Example Code
Real-Time OS
Simulated Features
Simulation for this device is provided by the default peripheral simulation driver.

Complete peripheral simulation is not available and is not planned to be implemented by ARM.

The following on-chip peripherals are simulated by the Keil Software µVision Debugger.

AGSI Drivers

The following AGSI Drivers are available for the Keil Software µVision Simulator.

AGDI Drivers

The following AGDI Drivers are available for the Keil Software µVision Debugger.

  Arm logo
Important information

This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies.

Change Settings

Privacy Policy Update

Arm’s Privacy Policy has been updated. By continuing to use our site, you consent to Arm’s Privacy Policy. Please review our Privacy Policy to learn more about our collection, use and transfers
of your data.