Renesas R5S72621 Manual Do Utilizador

 

Section 26   USB 2.0 Host/Function Module 

R01UH0134EJ0400  Rev. 4.00  

 

Page 1463 of 2108 

Sep 24, 2014 

 

 

 
SH7262 Group, SH7264 Group 

1, 0 

PID[1:0] 

00 

R/W 

  This module sets PID to NAK on detecting a 

receive error such as a CRC error three 

consecutive times when the host controller 

function is selected. 

  This module sets PID to STALL (11) on receiving 

the STALL handshake when the host controller 

function is selected.  

To specify each response type, set these bits as 
follows. 

  To make a transition from NAK (00) to STALL, 

set 10. 

  To make a transition from BUF (01) to STALL, 

set 11. 

  To make a transition from STALL (11) to NAK, 

set 10 and then 00. 

  To make a transition from STALL to BUF, set 00 

(NAK) and then 01 (BUF). 

Note:  *  Only 0 can be read and 1 can be written.