Renesas R5S72622 Manual Do Utilizador

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Section 26   USB 2.0 Host/Function Module 
R01UH0134EJ0400  Rev. 4.00  
 
Page 1375 of 2108 
Sep 24, 2014 
 
 
 
SH7262 Group, SH7264 Group 
Bit Bit 
Name 
Initial 
Value R/W  Description 
11, 10 
MBW[1:0] 
00 
R/W 
FIFO Port Access Bit Width 
Specifies the bit width for accessing the DnFIFO 
port.  
00: 8-bit width 
01: 16-bit width 
10: 32-bit width 
11: Setting prohibited 
Once reading data is started after setting these bits, 
these bits should not be modified until all the data 
has been read. 
When the selected pipe is in the receiving direction, 
set the CURPIPE and MBW bits simultaneously. 
For details, see section 26.4.4, FIFO Buffer 
Memory. 
When the selected pipe is in the transmitting 
direction, the bit width cannot be changed from the 
8-bit width to the 16-/32-bit width or from the 16-bit 
width to the 32-bit width while data is being written 
to the buffer memory. 
 0 
Reserved 
This bit is always read as 0. The write value should 
always be 0. 
BIGEND 
R/W 
FIFO Port Endian Control 
Specifies the byte endian for the DnFIFO port. 
0: Little endian 
1: Big endian 
7 to 4 
 All 
Reserved 
These bits are always read as 0. The write value 
should always be 0.