SH7203 Datasheet, PDF (1184/1686 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 23 USB 2.0 Host/Function Module (USB)
23.3.33 Pipe Buffer Setting Register (PIPEBUF)
PIPEBUF is a register that specifies the buffer size and buffer number for PIPE1 to PIPE7.
This register is initialized by a power-on reset or a software reset.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
BUFSIZE[4:0]
-
-
-
BUFNMB[6:0]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R R/W R/W R/W R/W R/W R R R R/W R/W R/W R/W R/W R/W R/W
Bit
Bit Name
15
⎯
Initial
Value R/W
0
R
14 to 10 BUFSIZE[4:0] H'00 R/W
9 to 7 ⎯
All 0 R
Description
Reserved
This bit is always read as 0. The write value should
always be 0.
Buffer Size
Specify the buffer size for the corresponding pipe.
(from 0: 64 bytes to H'1F: 2 kbytes)
The valid value for the BUFSIZE bit depends on the
pipe selected by the PIPESEL bit in PIPESEL.
• PIPE1 to PIPE5: Any value from H'00 to H'1F is
valid.
• PIPE6 and PIPE7: H'00 should be set.
Reserved
These bits are always read as 0. The write value
should always be 0.
Rev. 2.00 Apr. 16, 2008 Page 1154 of 1652
REJ09B0313-0200