最終更新:2015-02-25 (水) 15:35:05 (3340d)
USB/ハンドシェイクパケット
概要
- Used to report the status of a data transaction and can return values indicating successful reception of data, command acceptance or rejection, flow control, and halt conditions.
- Only transaction types that support flow control can return handshakes.
- Handshakes are always returned in the handshake phase of a transaction and may be returned, instead of data, in the data phase.
- Handshake packets are delimited by an EOP after one byte of packet field.
構造
| フィールド | PID |
| ビット数 | 8 |
