h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 379

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

4. Status Stage (Control-In)
The control-in status stage starts with an OUT token from the host. The firmware receives 0-
length packet from the host, and ends control transfer.
Receive 0-length packet from host
(EP0o TS in IFR0 = 1)
End of control transfer
Receive OUT token
Set EP0o receive
complete flag
USB function
Figure 12.8 Status Stage Operation (Control-In)
ACK
Interrupt generated
Rev. 2.00, 03/04, page 347 of 534
(EP0o TS in IFR0 = 0)
End of control transfer
Clear interrupt flag
Firmware