Toshiba H1 Series Data Book page 432

IDLE
Receive SETUP token
Confirm Token packet
• PID
• Address
• Endpoint
• Transfer mode
• Error
OK
Confirm Status
• Confirmation STATUS register (Status)
OK
Confirm DATA PID
• DATA0
• Time out
OK
Receive data
• Error
• Confirm receving data
number
OK
Transmit ACK
OK
Normal finish transaction
• Set DATASET register
• Assert INT_SETUP and request flag
• According to stage flow, prepare for next stage
• Set STATUS to DATAIN
• Set toggle bit to 1
Error
Invalid
Except DATA0 PID
Time out
Error, more than payload data comunication
Figure 3.16.9 Control Flow in UDC (Setup stage)
92CZ26A-429
Error transaction
• Set STATUS to RX_ERR
• Put back FIFO address point
TMP92CZ26A