> 4.3.11 | Non-supported Command Response (NSC)

> This response is sent whenever a command type is not supported by the receiving entity.
> Type field:

> Bit 1 | Bit 2 | Bit 3 | Bit 4 | Bit 5 | Bit 6 | Bit 7 | Bit 8
> 1 | C/R | 0 | 0 | 1 | 0 | 0 | 0

> C/R bit: Indicates whether the sequence is a command or a response.
> Value octet:

> Bit 1 | Bit 2 | Bit 3 | Bit 4 | Bit 5 | Bit 6 | Bit 7 | Bit 8
> EA | C/R | Command type of the non-supported command

> C/R bit: Returns the same value as in the received, non-supported command
> Frames not recognized by the receiving entity are responded by an NSC frame.