LPC2000系列32位ARM微控制器中为所有CAN控制器提供了全局的接收标识符查询功能。它包含一个512×32(2k字节)的RAM，通过软件处理，可在RAM中存放1～5个标识符表格。整个AF RAM可容纳1024个标准标识符或512个扩展标识符，或两种类型混合的标识符。由于允许的表格范围有2k字节，所以能容易地满足设计复杂的ID接收过滤要求-Series 32 LPC2000 ARM microcontrollers for all CAN controller provides a global identifier for the reception function. It contains a 512 x 32 (2k bytes) of RAM, software, may be stored in RAM to a five identifier forms. The entire AF RAM can accommodate 1,024 standard identifier or expand 512 identifier, or both types of mixed identifier. Because of the scope of permissible forms a 2k bytes, and so they can easily meet the complex design of the ID requirements receive filter