Renesas H8S/2158 User Manual page 636

Section 18 Universal Serial Bus Interface (USB)
Bit Bit Name Initial Value R/W
2 EPIVLD 0
Rev. 3.00 Jan 25, 2006 page 582 of 872
REJ09B0286-0300
Description
R/(W) * Endpoint Information Valid
Enables USB function core operation.
To enable the USB function core operation, endpoint
information must be specified. After a system reset or
function software reset, the USB function core has no
endpoint information. Endpoint information of the USB
function core in this LSI can be set by writing to EPDR0I
sequentially (for details, see section 18.4.7, USB Module
Startup Sequence). By setting this bit to 1 after writing all
data in EPDR0I, endpoint information written to the USB
function core becomes valid.
0: Indicates that endpoint information (EPINFO) is not
specified.
[Clearing conditions]
•
System reset
•
Function software reset
1: Indicates that endpoint information (EPINFO) is
specified.