h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 382

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

Rev. 2.00, 03/04, page 350 of 534
Yes
Clear EP1 FIFO full status
Set EP1 FIFO full status
(EP1 FULL in IFR0 = 1)
(EP1 FULL in IFR0 = 0)
Receive data from host
ACK
any space in both EP1
Receive PING token
Receive OUT token
Is there any space
any space in other
Is receive data
in EP1 FIFO?
EP1 FIFO?
Yes
length 0?
Yes
Yes
Is there
Is there
FIFOs?
No
ACK (for only PING)
Figure 12.10 EP1 Bulk-Out Transfer Operation
USB function
NYET (High speed)
ACK (Full speed)
No
No
No
Full speed
High speed
NAK
Set EP1 FIFO full status
(EP1 FULL in IFR0 = 1)
Interrupt generated
Interrupt generated
Confirm receive data length from
EP1 receive data size register
data register (EPDR1)
Read data from EP1
Firmware
(EPSZ1)