| 摘要 |
<p>The message begins with a start bit (START) which is followed by the useful information (INFO) and a parity bit (CHECK). Two further bits (BS1,BS2) are included which indicate the end of the message and also the type of information carried such as command, address, data and high and low value digits. Individual stages of an overall instruction such as read or write may then be individually checked</p> |
