SH7265 Datasheet, PDF (1239/2024 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 25 USB 2.0 Host/Function Module (USB)
Initial
Bit
Bit Name
Value R/W Description
7
HSE
0
R/W PORT0 High-Speed Operation Enable
Enables or disables high-speed operation on PORT0.
• When the host controller function is selected
When HSE = 0, the USB PORT0 performs low-
speed or full-speed operation.
Set HSE to 0 when connection of a low-speed
function device to the USB PORT0 has been
detected.
When HSE = 1, this module executes the reset
handshake protocol, and automatically drives the
USB PORT0 to perform high-speed or full-speed
operation according to the protocol execution
result.
0: High-speed operation is disabled (full-speed or
low-speed)
1: High-speed operation is enabled (this module
detects the communication rate)
Note: This bit should be modified after detecting
device connection (after detecting the
ATTCH interrupt) and before executing a
USB bus reset (before setting USBRESET
to 1).
• When the function controller function is selected
When HSE = 0, this module performs full-speed
operation.
When HSE = 1, this module executes the reset
handshake protocol, and automatically performs
high-speed or full-speed operation according to
the protocol execution result.
0: High-speed operation is disabled (full-speed)
1: High-speed operation is enabled (this module
detects the communication rate)
Note: This bit should be modified while DPRPU
is 0.
Rev. 1.00 Mar. 14, 2008 Page 1203 of 1984
REJ09B0351-0100