CM109 Datasheet, PDF (3/36 Pages) C-Media Electronics – USB I/O Controller

CM109
High Integration / Low Cost USB Audio Controller
for PC Internet Phone
TABLE OF CONTENTS
1. DESCRIPTIONS AND OVERVIEW
2. FEATURES
3. PIN DESCRIPTIONS
3.1 PIN ASSIGNMENT BY PIN NUMBER
3.2 PIN-OUT DIAGRAM
3.3 PIN SIGNAL DESCRIPTIONS
4. MCU INTERFACE
5. BLOCK DIAGRAM
6. ORDERING INFORMATION
7. FUNCTION DESCRIPTIONS
7.1 USB INTERFACE
7.1.1 DEVICE DESCRIPTOR
7.1.2 CONFIGURATION DESCRIPTOR
7.1.3 CONTENT FORMAT FOR 94C46
7.1.4 USB AUDIO TOPOLOGY DIAGRAM
7.2 JUMPER PINS AND MODE SETTING
7.3 HID FEATURE
7.3.1 HID DESCRIPTOR
7.3.2 WINDOWS SOFTWARE ARCHITECTURE FOR HID
7.4 INTERNAL REGISTERS
7.4.1 ACCESS VIA HID CLASS COMMAND
7.4.2 ACCESS VIA ENTERNAL INTERFACE BY MCU
Date: 08/Sep/2005
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Version: 1.3a