参数资料
型号: M66596WG
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PBGA64
封装: 0.80 MM PITCH, FBGA-64
文件页数: 48/133页
文件大小: 1611K
代理商: M66596WG
M66596FP/WG
rev .1.00
2006.3.14
page 19 of 127
System configuration status register [SYSSTS]
<Address: 02H>
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
LNST
?
Bit
Name
Function
S/W
H/W
Note
15-2
Nothing is placed here. These should be fixed at “0”.
1-0 LNST
USB data line status
Please see the detailed explanation concerning
this item.
R
W
<<Notes>>
None in particular
2.3.1
Selection of a function
The HSE and DCFM bit of the SYSCFG register should be used to select function of the controller. The
controller function selection table is shown in Table 2.3.
Table 2.3 The controller function selection
HSE
DCFM
Speed
Function
Note
0
Full
Peripheral
Full-Speed communication only.
0
1
Full
Host
Full-Speed communication only.
1
0
Full / Hi
Peripheral
The communication speed is based on the result of RHSP.
1
Full / Hi
Host
The communication speed is based on the result of RHSP.
* RHSP : Reset Handshake Protocol
2.3.2
USB block operation enabled
The USBE bit of the SYSCFG register should be used to enable USB block operation.
The same bit can be used to carry out an S/W reset of the controller. When software is set to “USBE=0”, the
controller resets the register targeted for S/W reset initialization to the default setting value. As long as
“USBE=0” is set, no data can be written by software to the bit targeted for S/W reset initialization. “USBE=1”
should be set following an S/W reset to enable controller operation.
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