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Sun Oct 21 18:47:48 EDT 2012

Byte read/write

Byte write:

- Busy loop until UOWN=0  (if UOWN=1 a transaction is in progress)
- Save a byte to the buffer, update pointer
- If buffer is full, send to USB

Flush:
- <n> 1 IN/DATA0

Implementation: CNT can be used to store the LSB of byte pointer.

I did this impl before.  Where did it go?
Yep:

a/IN1-begin
a/IN1-end
IN1-flush



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