"LAT Unit Bitfield" (OS/PBC)

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Ancestry:

0x000	pkt	LBTBAD
0x008	bf	CUNITBF ident

Definition:

Alignment:	2-byte boundary
APID:	1600/0x640:4
Attribute(s):
C type:	unsigned short
Length:	16 bits (2 bytes)
Offset:	0x008

Description:

Bitfield containing target LAT unit and some padding.

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Item Type and Name

CUNITBF (bf)
|  CLATUNIT latUnit (0-3)
|  CPAD12 pad (4-15)

typedef struct _PBC_CUNITBF_Bfl {

    #if ENDIANNESS_IS_BIG

    /* Target LAT Unit */
    unsigned short       latUnit:4;

    /* 12-bit padding */
    unsigned short       pad:12;

    #elif ENDIANNESS_IS_LITTLE

    /* 12-bit padding */
    unsigned short       pad:12;

    /* Target LAT Unit */
    unsigned short       latUnit:4;

    #else

    #error _FILE_ ENDIANNESS NOT DEFINED

    #endif

} __attribute__((packed)) PBC_CUNITBF_Bfl;

typedef union _PBC_CUNITBF {

    /* underlying unsigned short */
    unsigned short                  us;

    /* struct mapped bitfield */
    struct _PBC_CUNITBF_Bfl         bf;

} PBC_CUNITBF;