Section 23
USB 2.0 Host/Function Module (USB)
Rev. 0.50 May 18, 2006 Page 1121 of 1588
REJ09B0313-0050
23.3.27 USB Request Length Register (USBLENG)
USBLENG is a register that stores setup requests for control transfers. When the peripheral
controller function is selected, the value of wLength that has been received is stored. When the
host controller function is selected, the value of wLength to be transmitted is set.
This register is initialized by a power-on reset, a software reset, and a USB bus reset.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit:
Initial value:
R/W:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
WLENGTH[15:0]
Bit Bit
Name
Initial
Value
R/W Description
15 to 0
WLENGTH
[15:0]
H'0000 R/W
*
Length
These bits store the USB request wLength value.
Note: When the function controller function is selected, these bits can only be read. When the
host controller function is selected, these bits can be read or written to.
Содержание Single-Chip Microcomputer SH7203
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Страница 242: ...Section 8 Cache Rev 0 50 May 18 2006 Page 212 of 1588 REJ09B0313 0050 ...
Страница 400: ...Section 9 Bus State Controller BSC Rev 0 50 May 18 2006 Page 370 of 1588 REJ09B0313 0050 ...
Страница 668: ...Section 11 Multi Function Timer Pulse Unit 2 MTU2 Rev 0 50 May 18 2006 Page 638 of 1588 REJ09B0313 0050 ...
Страница 696: ...Section 13 Watchdog Timer WDT Rev 0 50 May 18 2006 Page 666 of 1588 REJ09B0313 0050 ...
Страница 726: ...Section 14 Realtime Clock RTC Rev 0 50 May 18 2006 Page 696 of 1588 REJ09B0313 0050 ...
Страница 796: ...Section 15 Serial Communication Interface with FIFO SCIF Rev 0 50 May 18 2006 Page 766 of 1588 REJ09B0313 0050 ...
Страница 876: ...Section 17 I2 C Bus Interface 3 IIC3 Rev 0 50 May 18 2006 Page 846 of 1588 REJ09B0313 0050 ...
Страница 1020: ...Section 19 Controller Area Network RCAN TL1 Rev 0 50 May 18 2006 Page 990 of 1588 REJ09B0313 0050 ...
Страница 1054: ...Section 21 D A Converter DAC Rev 0 50 May 18 2006 Page 1024 of 1588 REJ09B0313 0050 ...
Страница 1226: ...Section 23 USB 2 0 Host Function Module USB Rev 0 50 May 18 2006 Page 1196 of 1588 REJ09B0313 0050 ...
Страница 1294: ...Section 24 LCD Controller LCDC Rev 0 50 May 18 2006 Page 1264 of 1588 REJ09B0313 0050 ...
Страница 1386: ...Section 26 I O Ports Rev 0 50 May 18 2006 Page 1356 of 1588 REJ09B0313 0050 ...
Страница 1512: ...Section 30 List of Registers Rev 0 50 May 18 2006 Page 1482 of 1588 REJ09B0313 0050 ...
Страница 1598: ...Section 31 Electrical Characteristics Rev 0 50 May 18 2006 Page 1568 of 1588 REJ09B0313 0050 ...
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