Renesas R5S72621 User Manual

 
Section 26   USB 2.0 Host/Function Module 

Page 1358 of 2108 

 

R01UH0134EJ0400  Rev. 4.00 

 

 Sep 

24, 

2014 

SH7262 Group, SH7264 Group

7 

RWUPE 

0 

R/W 

Remote Wakeup Detection Enable 

Enables or disables the downstream port peripheral 
device to use the remote wakeup function (resume 
signal output) when the host controller function is 
selected. 

0: Downstream port remote wakeup is disabled. 

1: Downstream port remote wakeup is enabled. 

With this bit set to 1, on detecting the remote wakeup 
signal, this module detects the resume signal (K-
state for 2.5 

s) from the downstream port device 

and performs the resume process (drives the port to 
the K-state). 

With this bit set to 0, this module ignores the 
detected remote wakeup signal (K-state) from the 
peripheral device connected to the downstream port. 

While this bit is 1, the internal clock should not be 
stopped even in the suspended state (SCKE should 
be set to 1). Also note that the USB bus should not 
be reset from the suspended state (USBRST should 
not be set to 1); it is prohibited by USB Specification 
2.0. 

This bit should be set to 0 if the function controller 
function is selected.