CS8422
6.10.2软件模式控制........................................................................................................ 34
7.采样速率转换器( SRC ) .......................................... .................................................. ...... 37
7.1 SRC数据的分辨率和抖动............................................ .................................................. ..... 37
7.1.1硬件模式控制........................................................................................................ 37
7.1.2软件模式控制.......................................................................................................... 37
7.2 SRC锁定.................................................................................................................................. 37
7.3 SRC静音.................................................................................................................................... 38
7.4 SRC主时钟......................................................................................................................... 38
7.4.1硬件模式控制........................................................................................................ 39
7.4.2软件模式控制.......................................................................................................... 39
8.硬件模式控制.......................................................................................................... 39
8.1硬件模式串行音频端口控制........................................... .......................................... 40
9.软件模式控制........................................................................................................... 42
9.1控制端口说明................................................................................................................ 42
9.1.1 SPI模式............................................................................................................................... 42
9.1.2 IC模式................................................................................................................................ 43
9.1.3存储器地址指针( MAP) ......................................... .................................................. 43
10.注册快速参考...................................................................................................... 44
11.软件寄存器位定义............................................ .......................................... 47
11.1 CS8422内径和版本寄存器( 01H ) ............................................ ......................................... 47
11.2时钟控制( 02H ) ...................................................................................................................... 47
11.3接收器输入控制( 03H ) ........................................................................................................ 48
11.4接收数据控制( 04H ) ........................................................................................................ 48
11.5 GPO控制1( 05H ) .................................................................................................................... 50
11.6 GPO控制2 ( 06H ) .................................................................................................................... 50
11.7串行音频输入时钟控制( 07H ) ......................................... ............................................... 50
11.8 SRC输出串口时钟控制( 08H ) ........................................ ....................................... 51
11.9恢复主时钟比率控制&杂项。 ( 09H ) .............................. ................. 52
11.10数据路由控制( 0AH ) ......................................................................................................... 52
11.11串行音频数据输入格式(值0Bh ) ......................................... .............................................. 53
11.12串行音频输出数据格式 - SDOUT1 ( 0CH ) ....................................... ............................ 54
11.13串行音频输出数据格式 - SDOUT2 ( 0DH ) ....................................... ........................... 55
11.14接收器错误取消屏蔽( 0EH ) ........................................... .................................................. 。 56
11.15中断取消屏蔽(0Fh ) ......................................................................................................... 56
11.16中断模式( 10H ) .................................................................................................................. 57
11.17接收机信道状态( 11H ) ........................................... .................................................. .... 57
11.18格式检测状态( 12H ) ........................................................................................................ 58
11.19接收器错误( 13H ) ................................................................................................................. 58
11.20中断状态( 14H) ................................................................................................................ 59
11.21 PLL状态( 15H) ....................................................................................................................... 60
11.22接收状态( 16小时) ............................................................................................................... 61
11.23 FS / XTI比( 17H - 18H) ........................................................................................................... 62
11.24 Q信子码(19H - 22H ) ........................................ .................................................. ...... 62
11.25通道状态寄存器( 23H - 2CH) ......................................... .............................................. 62
11.26 IEC61937 PC / PD突发序言( 2DH - 30H) ..................................... .................................... 63
12.应用................................................................................................................................. 64
12.1复位,断电和启动........................................ .................................................. ..... 64
12.2电源,接地和PCB布局......................................... ........................................ 64
12.3外部接收器组成.............................................. .................................................. ... 64
12.3.1衰减输入信号..................................................................................................... 65
12.3.2隔离变压器的要求............................................ ....................................... 66
12.4通道状态缓存管理............................................. ............................................... 66
12.4.1 AES3通道状态(C )位管理....................................... ................................. 66
12.4.2访问电子缓冲........................................................................................................ 67
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DS692F1