I have a question about the stop code acceptor (STPACP) described in the Users Manual. It says , "When data is written to STPACP in the order of “5nH” and “0AnH” (where n is 0 to 0FH), the stop code acceptor is enabled." Why is the second data described as "0AnH", not "AnH"?|FAQ|ROHM Semiconductor

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I have a question about the stop code acceptor (STPACP) described in the Users Manual. It says , "When data is written to STPACP in the order of “5nH” and “0AnH” (where n is 0 to 0FH), the stop code acceptor is enabled." Why is the second data described as "0AnH", not "AnH"?
- It is because of assembler description control. The first character of the data to be specified must be numeric. If alphabetic, a compile error occurs. （A5H, FFH, etc.）
  Therefore, when describing data whose first character is alphabetic, please describe "0A5H", 0FFH in the assembler description.