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Section 26 USB 2.0 Host/Function Module
R01UH0134EJ0400 Rev. 4.00 Page 1351 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
Bit Bit Name
Initial
Value R/W Description
7 HSE 0 R/W High-Speed Operation Enable
0: High-speed operation is disabled
When the function controller function is selected:
Only full-speed operation is enabled.
When the host controller function is selected: Full-
speed or low-speed operation is enabled.
1: High-speed operation is enabled (detected by this
module)
(1) When the host controller function is selected
When HSE = 0, the USB port performs low-speed
or full-speed operation.
Set HSE to 0 when connection of a low-speed
peripheral device to the USB port has been
detected.
When HSE = 1, this module executes the reset
handshake protocol, and automatically allows the
USB port to perform high-speed or full-speed
operation according to the protocol execution
result.
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).
(2) 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.
This bit should be modified while DPRPU is 0.
6 DCFM 0 R/W Controller Function Select
Selects the host controller function or function
controller function.
0: Function controller function is selected.
1: Host controller function is selected.
This bit should be modified while DPRPU and DPRD
are 0.