
18
AT89C5132
4256A–USB–06/03
Answers from the Device to a
Blank Check Command
The Host controller send a GET_STATUS request to the device. Once internal blank
check has been completed, the device sends its status.
• If the device status is “OK”:
the device memory is then blank and the device waits the next Host request.
• If the device status is “
errCHECK_ERASED”:
the device memory is not blank. The device waits for an DFU_UPLOAD request to
send the first address where the byte is not 0xFF.
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