h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 627

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Note:
Bit
0
Bit Name Initial Value R/W
EP0OTS
* Only 0 can be written to clear the flag.
0
R/(W) * Endpoint 0 Host Output Transfer Success Flag
Description
Indicates that the endpoint 0 host output transfer has
been completed normally.
Endpoint 0 host output transfer has two transactions:
OUT transaction and SETUP transaction. Data
transmission in these transactions are the same, but flag
handling in these transactions differ.
Since most of the commands sent by a SETUP
transaction are processed in the USB function core, the
EP0OTS flag is not set and the EP0OTF flag in TFFR0 is
set to 1. For a command that cannot be processed in the
USB core, the EP0OTS flag is set to 1. Note that neither
the EP0OTS nor the EP0OTF flag is set to 1 if the
SEICNT bit in USBMDCR is set to 1 regardless of
whether the command can be processed in the USB core
or not.
0: Indicates that the end point 0 is in a host output
[Clearing conditions]
1: Indicates that the endpoint 0 host output transfer (OUT
[Setting conditions]
transfer wait state.
transaction or SETUP transaction) has been
completed normally.
0 is written to EP0OTS after EP0OTS = 1 has been
read.
Endpoint 0 has received a SETUP token.
An ACK handshake has been achieved (ACK
transmission) after OUT token reception and data
transfer.
A received command needs to be processed in the
slave CPU after a SETUP token has been received
(only when the SETICNT bit is cleared to 0).
Section 18 Universal Serial Bus Interface (USB)
Rev. 3.00 Jan 25, 2006 page 575 of 872
REJ09B0286-0300