2LVDS 接口 EtherCAT 从站控制器 datasheet V1.3.1
Funcience confidential
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4.1 LVDS 接口信号 .................................................................................................................................... 35
4.1.1 LVDS 接口信号连接举例 .................................................................................................................... 35
5 数字 I/O 接口和 SPI 从站接口描述 ............................................................................................................37
5.1 数字 I/O 接口 ........................................................................................................................................ 38
5.1.1 接口 ..................................................................................................................................................... 38
5.1.2 配置 ..................................................................................................................................................... 38
5.1.3 数字输入 ............................................................................................................................................... 38
5.1.4 数字输出 ............................................................................................................................................... 39
5.1.5 双向模式 ............................................................................................................................................... 40
5.1.6 输出驱动 ............................................................................................................................................... 40
5.1.7 SyncManage 看门狗 ............................................................................................................................. 40
5.1.8 SOF ........................................................................................................................................................ 41
5.1.9 OUTVALID ........................................................................................................................................... 41
5.1.10 时序特征 ....................................................................................................................................... 41
5.2 SPI 从站接口 .........................................................................................................................................43
5.2.1 接口 ..................................................................................................................................................... 43
5.2.2 配置 ..................................................................................................................................................... 43
5.2.3 SPI 访问 .................................................................................................................................................43
5.2.4 命令 ..................................................................................................................................................... 44
5.2.5 地址模式 ............................................................................................................................................... 44
5.2.6 中断请求寄存器（AL 事件寄存器） ................................................................................................. 45
5.2.7 写访问 ................................................................................................................................................... 45
5.2.8 读访问 ................................................................................................................................................... 45
5.2.9 SPI 访问错误和 SPI 状态错误 .............................................................................................................46
5.2.10 EEPROM 加载 ..............................................................................................................................46
5.2.11 时序特性 ....................................................................................................................................... 47
6 SII EEPROM 接口（I2C） ........................................................................................................................ 53
6.1 信号 ....................................................................................................................................................... 53
6.2 时序特性 ............................................................................................................................................... 53
7 分布式时钟 SYNC/LATCH 信号 ................................................................................................................54
7.1 信号 ....................................................................................................................................................... 54
7.2 时序特征 ............................................................................................................................................... 54
8 内存映射 ........................................................................................................................................................55
9 ELECTRICAL SPECIFICATIONS ...........................................................................................................58
9.1 ABSOLUTE MAXIMUM CONDITIONS .......................................................................................................58
9.2 OPERATING CONDITIONS ........................................................................................................................ 58
