ADV7611的音频输出设置

ADV7611在寄存器设置成如下列表后,视频正常输出,lrclk,sclk和mclk有波形输出,而AP(i2s数据)无输出,为低电平。在用工具读取到HDMI MAP(0x68 )的0x18号寄存器为0x00,即无L_PCM,DSD,DST和HBR输入,这个是否指示为无音频输入?
同时,音频的unmute功能需要如何设置才能输出48KHzPCM采样的I2S?

//ADV7611 CONFIG TO YUV4:2:2 16bits output and 48KHz I2S audio output
98 FF 80 ; I2C reset
98 F4 80 ; CEC
98 F5 7C ; INFOFRAME
98 F8 4C ; DPLL
98 F9 64 ; KSV
98 FA 6C ; EDID
98 FB 68 ; HDMI
98 FD 44 ; CP
98 01 06 ; Prim_Mode =110b HDMI-GR
98 02 F4 ; Auto CSC, YCrCb out
98 03 80 ; 16 bit SDR 422
98 05 2C ; AV Codes Insert
98 06 A6 ; Invert VS,HS pins
98 0B 44 ; Power up part
98 0C 42 ; Power up part
98 14 7F ; Max Drive Strength
98 15 80 ; Disable Tristate of Pins
98 19 83 ; LLC DLL phase
98 33 40 ; LLC DLL enable
44 BA 01 ; Set HDMI FreeRun
64 40 81 ; Disable HDCP 1.1 features
68 9B 03 ; ADI recommended setting
68 C1 01 ; ADI recommended setting
68 C2 01 ; ADI recommended setting
68 C3 01 ; ADI recommended setting
68 C4 01 ; ADI recommended setting
68 C5 01 ; ADI recommended setting
68 C6 01 ; ADI recommended setting
68 C7 01 ; ADI recommended setting
68 C8 01 ; ADI recommended setting
68 C9 01 ; ADI recommended setting
68 CA 01 ; ADI recommended setting
68 CB 01 ; ADI recommended setting
68 CC 01 ; ADI recommended setting
68 00 00 ; Set HDMI Input Port A
68 83 FE ; Enable clock terminator for port A
68 6F 0C ; ADI recommended setting
68 85 1F ; ADI recommended setting
68 87 70 ; ADI recommended setting
68 8D 04 ; LFG
68 8E 1E ; HFG
68 1A 8A ; unmute audio
68 57 DA ; ADI recommended setting
68 58 01 ; ADI recommended setting
68 03 98 ; DIS_I2C_ZERO_COMPR
68 75 10 ; DDC drive strength
68 6F 08 ;
68 4C 44 ;
44 6C 00 ;
98 04 60 ;