Renesas R5S72622 Manual Do Utilizador

Página de 2152
 
Section 26   USB 2.0 Host/Function Module 
Page 1408 of 2108 
 
R01UH0134EJ0400  Rev. 4.00 
 
 Sep 
24, 
2014 
SH7262 Group, SH7264 Group
Bit Bit 
Name 
Initial 
Value R/W Description 
14 CRCE 
R/W* Receive 
Data 
Error 
Indicates whether a CRC error or bit stuffing error 
has been detected in the pipe during isochronous 
transfer. Simultaneously with error detection, the 
internal NRDY interrupt request is generated. For 
details, see section 26.4.2, Interrupt Functions. 
0: No error 
1: An error occurred 
13 to 11 
 All 
Reserved 
These bits are always read as 0. The write value 
should always be 0. 
10 to 0 
FRNM[10:0] 
H'000 R 
Frame 
Number 
This module sets these bits to indicate the latest 
frame number, which is updated every time an SOF 
packet is issued or received (every 1 ms) 
Read these bits twice to check that the same value is 
read. 
Note:  *  Only 0 can be written