Determining chip revision | Cypress Semiconductor
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Determining chip revision
How can I determine the revision of the AN21xx EZ-USB chip that I have?
The stencil on the part can identify the chip revision, for example:
The leading E in the last line indicates a revision E part in this example.
You can also use the EZ-USB Control Panel to determine chip rev by pressing the Get Dev button. The bcdDevice field displays the chip rev as follows:
0x4 = Rev E, 0x3 = Rev D, etc..