CM106-F View Datasheet(PDF) - C-Media Electronics
Part Name
Description
Manufacturer
CM106-F Datasheet PDF : 41 Pages
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CM106-F+/L+
High End 8CH DAC and 2CH ADC Integrated Solution
6. FUNCTION DESCRIPTION
6.1 INTERNAL REGISTER
The internal registers of CM106F+/L+ can be divided to two parts. Some of them (REG0, REG1,
REG2 and REG3) are 16-bit width and can be accessed via HID interface. The others are 8-bit
width and can be accessed by vendor requests. To access registers via HID interface, users
should issue a “Set Output Report” HID request. The four bytes of output report data is organized
as below:
Byte [0]
Byte [1]
Byte [2]
Byte [3]
Read: 8’d48
Write: 8’d32
DATAL
DATAH
Register address (0, 1, 2, 3)
In addition to internal registers, users can also access external serial EEPROM by the same
way:
Byte [0]
Byte [1]
Byte [2]
Byte [3]
Read: 8’d80
Write: 8’d64
DATAL
DATAH
EEPROM address (0 ~ 8’d63)
When users intend to read register / EEPROM by “Set Output Report”, the returned data will be
transferred to USB host via HID input report through interrupt pipe. The three bytes of input
report data is organized as below:
Byte [0]
Byte [1]
Byte [2]
MCUIN EEIN REGIN HEADPON
DATAL from MCU when MCUIN = 1
DATAL from EEPROM when EEIN = 1
DATAL from Register when REGIN = 1
DATAH from MCU when MCUIN = 1
DATAH from EEPROM when EEIN = 1
DATAH from Register when REGIN = 1
MUTE VDN VUP
Date: 08/19/2005
- 19 -
Version： 1.01
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