CM119B
USB Audio Single Chip
When HID_IR0[7] == 1’b0:
Generic registers programmed by USB host
When HID_IR0[7] == 1’b1:
Always 4’h0
3-0
R
0x0
HID_OR1 (HID output report byte 1)
Offset:0x05
Bits
Read/Write
Description
Default
When HID_IR0[7] == 1’b0:
Generic registers programmed by USB host
When HID_IR0[7] == 1’b1:
7-0
R
0x00
Mapped from EEPROM_DATA0
HID_OR2 (HID output report byte 2)
Offset:0x06
Bits
Read/Write
Description
Default
When HID_IR0[7] == 1’b0:
Generic registers programmed by USB host
When HID_IR0[7] == 1’b1:
7-0
R
Mapped from EEPROM_DATA1
HID_OR3 (HID output report byte 3)
Offset:0x07
Bits
Read/Write
Description
Default
When HID_IR0[7] == 1’b0:
Generic registers programmed by USB host
When HID_IR0[7] == 1’b1:
7-0
R
0x00
Mapped from EEPROM_CTRL
6.6.3 Indirect Accessed Registers
MCU_CTRL (MCU control)
Offset:0x08
Bits
Read/Write
Description
Default
7-6
--
Reserved
0x0
0:MCLK operating at 1.5 MHz
1:MCLK operating at 3 MHz
2:MCLK operating at 6 MHz
3:Reserved
5-4
3-0
R/W
--
0x0
0x0
Reserved
EEPROM_DATA0 (Low byte of EEPROM data)
Offset: 0x09
Bits
Read/Write
Description
Default
7-0
R/W
Low byte of EEPROM data to be accessed
0x00
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Revised: Aug. 2013 Copyright© C-Media Electronics Inc.
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