CM6327A
USB Single-Chip Audio Solution for Mono Microphone
7.1.3
EEPROM Data Format
Address
Description
0x00
0x01
Magic word (“C”, 8’h43)
Magic word (“M”, 8’h4D)
EEPROM Content Setting (EEPROM_OPTION_1)
bit0: Manufacture String Valid? (0: No, 1: Yes)
bit1: Product String Valid? (0: No, 1: Yes)
bit2: Serial Number Valid? (0: No, 1: Yes)
bit3: Reserved
0x02
bit4: Recording (ADC) initial control Valid? (0: No, 1: Yes)
bit5: ADC gain range Control Valid? (0: No, 1: Yes)
bit6: Disable Selector unit? (0: No, 1: Yes)
bit7: Enable Remote Wakeup? (0: Disable, 1: Enable)
Recording (ADC) initial-L (EEPROM_OPTION_2)
bit[5:0]: ADC(unit Fa) initial Volume L-byte
(6’h2E ~ 6’h00, 30~ -16dB, -1dB/step)
bit6: Mute_fa (ADC) initial Value (0: Un-Mute, 1: Mute)
bit7: Reserved
0x03
Recording (ADC) initial-H (EEPROM_OPTION_3)
(1)bit[3:0]: ADC (Unit Fa) initial volume H-byte
(4’hf ~ 4’h0, 15 ~ 0dB, -1dB/step)
0x04
Bit[4]: control ADC HP filter by EEPROM (0 : No, 1 : Yes)
Bit[5]: ADC HP filter enable (0 : Disable, 1 : Enable)
Bit[7:6]: Reserved
Recording (ADC) max range Control_L (EEPROM_OPTION_4)
bit[7:0]: ADC (Unit fa) max. Volume[7:0]
0x05
0x06
0x07
Recording (ADC) max. range Control_H (EEPROM_OPTION_5)
bit[7:0]: ADC (Unit fa) max. Volume[15:8]
Recording (ADC) min range Control_L (EEPROM_OPTION_6)
bit[7:0]: ADC (Unit fa) min. Volume[7:0]
Recording (ADC) min. range Control_H (EEPROM_OPTION_7)
bit[7:0]: ADC (Unit fa) min. Volume[15:8]
Reserved
0x08
0x09
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