Data Sheet
SN11300
3 In 1 USB Audio Controller
displayed in the OS to differentiate their own products with the others. Some of the
features supported by the chip can also be programmed through setting proper
values in the EEPROM. Any modification will be active after re-plug USB cable.
The table below shows the format of the EEPROM. The detail is described in the
following sub-section.
SONiX TAG:
The SN11300 supports total 6 kind of external EEPROM, This filed indicate the
EEPROM type. The default value is 0x53, 0x4E (93C46).
USB VID and PID：
The default USB VID of SN11300 is 0x0C45. The default PID is 0x1300. The VID
can be changed by program EEPROM byte 0~1, and PID by byte 2~3. It should be
noted that the VID and PID values can not be set to 0x0000 or 0xFFFF.
Control byte 1:
The control byte 1 is located in byte 0x06 of EEPROM. Bit 0 to 3 is the HID3
interval time. It can be 2ms~20ms. Bit6 is Self-powered bit, and Bit7 indicate that
the MaxPower in USB descriptor（”1” is 500mA, “0” is 100mA）.
Control byte 2:
The control byte 2 is located in byte 0x07 of EEPROM. Bit0 is HID key control bit.
By default, SN11300 support 4 HID key (volume up, volume down, mute play, mute
record). Set this bit to zero will disable HID key function. Bit 4 to 7 is Audio
sampling rate. SN11300 support eight kind of sampling rate, default sampling rate is
48K Hz.
Control byte 3:
The control byte 3 is located in byte 0x08 of EEPROM. Bit 0 to 3 is the HID4
interval time. It can be 2ms~20ms.
LCM control byte:
The LCM control byte is located in byte 0x0C of EEPROM. Bit 2 to 3 is HID3
report out size. It supports two kind of report out size - 1K+32, 2K+32 bytes.
Sonix Confidential
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Do not copy, reproduce, or distribute without permission
2008 Mar 6, V1.3
SONIX [ SONIX TECHNOLOGY COMPANY ]
