Toshiba TLCS-900/H1 Series Manual page 266

IDLE
Receive IN token
Confirm Token packet
• PID
• Address
• Endpoint
• Transfer mode
• Error
OK
Confirm Status
• Confirm STATUS register (status)
OK
Generate DATA PID
• Attach DATA0
• Confirm DATASIZE register
Transmit data
Attach CRC
IDLE
CRC Error
Frame number unknown
Set LOST to FRAME register
Not receive SOF
Not renewal frame number
Loss data
Figure 3.10.10 Control Flow in UDC (Isochronous transfer type (Transmission))
Receive SOF
without transmitting data
NG
Shift FIFO BANKs
every receive SOF
ReceiveSOF
OK
Renew frame number
SOF
Assert
92CH21-264
Clear X condition (A)
Set FULL to STATUS
Invalid
BANK B transaction
• Clear transmitting FIFO BANK A in preceding frame
• Clear DATASET register's BANK A bit
• Set DATASET register's BANK B bit
(Finish a write in previous frame)
• Set STATUS to READY
• Wait data for transmitting next frame (BANK A)
BANK A transaction
• Clear transmitting FIFO BANK B in preceding
frame
• Clear DATASET register's BANK B bit
• Set DATASET register's BANK A bit
(Finish a write in previous frame)
• Set STATUS to READY
• Wait data for transmitting next frame (BANK B)
TMP92CH21
2009-06-19