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參數(shù)資料
| 型號(hào)： | CM109 |
| 廠商： | C-Media Electronics Inc. |
| 英文描述： | USB I/O Controller |
| 中文描述： | 的USB I / O控制器 |
| 文件頁(yè)數(shù)： | 5/36頁(yè) |
| 文件大小： | 618K |
| 代理商： | CM109 |
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CM109
High Integration / Low Cost USB Audio Controller
for PC Internet Phone
Date: 08/Sep/2005
Version:
1.3a
- 12 -
7.1.2 Configuration Descriptor
Offset
Field
Size
Value
(Hex)
Description
0
bLength
1
09
Total 9 Bytes
1
bDescriptorType
1
02
Configuration Descriptor
2
wTotalLength
2
Total length of data returned for
this configuration
Programmable by MSEL and
MODE pin
4
bNumInterfaces
1
04 or 03 Number of interfaces supported
by this Configuration
(Decided by Speaker Mode and
Head Set mode):
0: control interface
1: ISO-OUT interface
2: ISO-IN interface (Option)
3: INT-IN(HID) interface
5
bConfigurationValue
1
01
6
iConfiguration
1
00
7
bmAttributes
1
A0 or E0 Programmable by PWRSEL
8
bMaxPower
2
32 or FA Maximum power consumption of
the USB
Programmable by MODE and
PWRSEL
7.1.3 Content Format for 93C46
id code 2 bytes
P ID 2 bytes
serial num ber
6 bytes
unused
address = 0
1W = 2B ytes
V ID 2 bytes
670X
w here X = bit 4, 3, 2, 1
bit 2 serial num ber enable control 1: enable 0: disable
bit 1 product string enable control 1: enable 0: disable
Content Format for 93C46
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