4.4.1 Word Address Values
During an I/O write packet, the ECC204-TFLXAUTH interprets the second byte sent as the word address, which indicates the packet function as it is described in the table below:
| Name | Value | Description |
|---|---|---|
| Reset | 0x00 |
Resets the address counter. The next I/O read or write transaction will start with the beginning of the I/O buffer. |
| Sleep (low-power) | 0x01 or 0x02 |
The ECC204-TFLXAUTH goes into the low-power Sleep mode and ignores all subsequent I/O transitions until the next Wake flag. The entire volatile state of the device is reset. |
| Command | 0x03 |
Writes subsequent bytes to sequential addresses in the input command buffer that follow previous writes. This is the normal operation. |
Note: Only the lower two bits of the Word
Address byte are decoded by the ECC204-TFLXAUTH.