m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 139

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.8.3. Formats of transactions
A transaction is the unit in which the host CPU schedules one frame. Each transaction is config-
ured with packet, and the transaction types are determined according to the configuration pat-
tern. The transaction types and formats are shown below:
Transaction
Isochronous transaction (IN)
(idle state)
(idle state)
IN transaction
DATA0/1 NAK STALL
(idle state)
(idle state)
DATA0
ACK
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IN
IN
Handshake packet issued by the host
Handshake packet issued by the device
Token packet issued by the host
Data packet issued by the device
Data packet issued by the host
OUT transaction
(idle state)
DATA0/1
(idle state)
ACK NAK STALL
OUT
Isochronous transaction (OUT)
(idle state)
(idle state)
DATA0
OUT
SETUP transaction
(idle state)
(idle state)
DATA0
SETUP
ACK
2. USB function