
UIC680 Programmer’s Manual
UDN PM063-U Rev. 4
4-16
4.4 Responses to the Host
^ (5EH) Acknowledge. Acknowledges correct completion of most recent command.
* (2AH) Command was received correctly. But could not be completed.
+ (2BH) No Magnetic Stripe Card Data. Command was received correctly.
? (3FH) Communication Error. Command was not received correctly.
! (21H) Invalid Command or bad parameter.
: (3AH) Power On report.
~ (7Eh) Unavailable. Hardware not available to complete this request.