Question: How can I determine the revision of the AN21xx EZ-USB chip that I have?
Answer: The stencil on the part can identify the chip revision, for example:
| EZ-USBTM | |
| AN2131QC | |
| 0021 | |
| ENY0876 | KOREA |
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..
