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Section 26 USB 2.0 Host/Function Module
R01UH0134EJ0400 Rev. 4.00 Page 1421 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
Bit Bit Name
Initial
Value R/W Description
11 SUREQCLR 0 R/W*
1
SUREQ Bit Clear
When the host controller function is selected,
setting this bit to 1 clears the SUREQ bit to 0.
0: Invalid
1: Clears the SUREQ bit to 0.
This bit always indicates 0.
Set this bit to 1 when communication has stopped
with SUREQ being 1 during the setup transaction.
However, for normal setup transactions, this
module automatically clears the SUREQ bit to 0
upon completion of the transaction; therefore,
clearing the SUREQ bit is not necessary.
Controlling the SUREQ bit through this bit must be
done while UACT is 0 and thus communication is
halted or while no transfer is being performed with
bus disconnection detected.
When the function controller function is selected, be
sure to write 0 to this bit.
10, 9 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.