PT Structure

The DV_TPT termination parameter table sets termination conditions for a range of products. The valid values for the DV_TPT structure in relation to the Digital Network Interface board are contained in this section.

The DV_TPT structure has the following format:

typedef struct dv_tpt  (  
   unsigned short tp_type;        /* Flags describing this entry */  
   unsigned short tp_termno;      /* Termination Parameter number */  
   unsigned short tp_length;      /* Length of terminator */  
   unsigned short tp_flags;       /* Parameter attribute flag */  
   unsigned short tp_data;        /* Optional additional data */  
   unsigned short rfu;            /* Reserved                 */  
   DV_TPT         *tp_nextp;      /* Pointer to next termination  
                                   * parameter if IO_LINK set  
                                   */  
}DV_TPT;

Table 12 shows the Digital Network Interface equates for this structure.

Table 12. DV_TPT Structure

Field	Value	Description
tp_type	IO_LINK	Structure is part of a linked list - the structure is linked through the Standard Runtime Library
	IO_CONT(default)	The next structure will be contiguous in memory
	IO_EOT	This structure is the final entry in the DV_TPT table
rfu	0	Reserved for future use
tp_nextp	0	Pointer to the next termination parameter

Refer to the Standard Runtime Library Programmer's Guide (for Linux or Windows) for further information on the termination parameter table structure.

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