Renesas R5S72625 Manual De Usuario

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Section 26   USB 2.0 Host/Function Module 
R01UH0134EJ0400  Rev. 4.00  
 
Page 1367 of 2108 
Sep 24, 2014 
 
 
 
SH7262 Group, SH7264 Group 
Bit Bit 
Name 
Initial 
Value R/W Description 
31 to 0 
FIFOPORT 
[31:0] 
All 0 
R/W 
FIFO Port 
Accessing these bits allow reading the received data 
from the FIFO buffer or writing the transmit data to 
the FIFO buffer. 
These bits can be accessed only while the FRDY bit 
in each control register (CFIFOCTR, D0FIFOCTR, or 
D1FIFOCTR) is 1. 
The valid bits in this register depend on the settings 
of the MBW bits (access bit width setting) and 
BIGEND bit (endian setting) as shown in tables 26.7 
to 26.9. 
 
Table 26.7  Endian Operation in 32-Bit Access (when MBW = 10) 
BIGEND Bit 
Bits 31 to 24 
Bits 23 to 16 
Bits 15 to 8 
Bits 7 to 0 
N + 3 address 
N + 2 address 
N + 1 address 
N + 0 address 
N + 0 address 
N + 1 address 
N + 2 address 
N + 3 address 
 
Table 26.8  Endian Operation in 16-Bit Access (when MBW = 01) 
BIGEND Bit 
Bits 31 to 24 
Bits 23 to 16 
Bits 15 to 8 
Bits 7 to 0 
Writing: invalid, reading: prohibited*
N + 1 address 
N + 0 address 
N + 0 address 
N + 1 address 
Writing: invalid, reading: prohibited* 
Note:  *  Reading data from the invalid bits in a word or byte unit is prohibited. 
 
Table 26.9  Endian Operation in 8-Bit Access (when MBW = 00) 
BIGEND Bit 
Bits 31 to 24 
Bits 23 to 16 
Bits 15 to 8 
Bits 7 to 0 
Writing: invalid, reading: prohibited* 
N + 0 address 
N + 0 address 
Writing: invalid, reading: prohibited* 
Note:  *  Reading data from the invalid bits in a word or byte unit is prohibited.