Error Messages

     <ERR> <Code> <Command length> <Command in error>

<Code> is an eight-bit field that specifies the error type. The assigned codes are shown below. <Command length> is a 16-bit integer that indicates the length of the <Command in error> in bits. The <Command in error> is the spurious command.

The ranges of <Code> are shown below in hexidecimal.

     00     Unspecified error types
     10-0F  Resource errors
     10-1F  Status errors
     20-2F  Content errors
     30-3F  Unused

Specific values of <Code> are shown below with their meaning.

     <Code> value   Semantics

         00         Unspecified errors.
         01         Request for an invalid resource.
         02         Request for an exhausted resource, try later.
        03-0F       Unused.
         10         Invalid <RSM>, i.e., link connected but unblocked.
         11         Invalid <SPD>.
         12         Invalid <ASG>, i.e., connected but no <RDY>
                      received.

     <Code> value   Semantics

         13         Message received on blocked link.
        14-1F       Unused.
         20         Unknown command code.
         21         Message received on unconnected link.
         22         Invalid <RFC>.
         23         Invalid <CLS>.
         24         Invalid <RSM>, i.e., link not connected.
         25         Invalid <FND>.
         26         Invalid <END>.
         27         Invalid <RDY>.
         28         Invalid <ASG>, i.e., not connected.
        29-2F       Unused.
        30-FF       Unused.