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Section 26 USB 2.0 Host/Function Module
Page 1450 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
Bit Bit Name
Initial
Value R/W Description
5 PBUSY 0 R Pipe Busy
This bit indicates whether the relevant pipe is used or
not for the transaction.
0: The relevant pipe is not used for the transaction.
1: The relevant pipe is used for the transaction.
The USB 2.0 host/function module switches the
PBUSY bit from 0 to 1 when a USB transaction using
the pertinent pipe starts. It clears the PBUSY bit from
1 to 0 when one transaction completes successfully.
Reading this bit after PID has been set to NAK
allows checking that modification of the pipe settings
is possible.
For details, refer to section 26.4.3 (1), Pipe Control
Register Switching Procedures.
4 to 2 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.