參數(shù)資料
型號: 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
文件頁數(shù): 23/36頁
文件大小: 618K
代理商: CM109
CM109
High Integration / Low Cost USB Audio Controller
for PC Internet Phone
Date: 08/Sep/2005
Version:
1.3a
- 2 -
TABLE OF CONTENTS
1. DESCRIPTIONS AND OVERVIEW
4
2. FEATURES
4
3. PIN DESCRIPTIONS
6
3.1 PIN ASSIGNMENT BY PIN NUMBER
6
3.2 PIN-OUT DIAGRAM
6
3.3 PIN SIGNAL DESCRIPTIONS
7
4. MCU INTERFACE
9
5. BLOCK DIAGRAM
9
6. ORDERING INFORMATION
10
7. FUNCTION DESCRIPTIONS
11
7.1 USB INTERFACE
11
7.1.1
DEVICE DESCRIPTOR
11
7.1.2
CONFIGURATION DESCRIPTOR
12
7.1.3
CONTENT FORMAT FOR 94C46
12
7.1.4
USB AUDIO TOPOLOGY DIAGRAM
13
7.2 JUMPER PINS AND MODE SETTING
13
7.3 HID FEATURE
14
7.3.1
HID DESCRIPTOR
15
7.3.2
WINDOWS SOFTWARE ARCHITECTURE FOR HID
16
7.4 INTERNAL REGISTERS
16
7.4.1
ACCESS VIA HID CLASS COMMAND
16
7.4.2
ACCESS VIA ENTERNAL INTERFACE BY MCU
19
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