"Memory Data Dump" (SVC/MEM)

ITOS Mnemonic:  LMEMDUMPMEM

View Options: (help)

Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

Dump data from a region of memory.

Layout:  (hide detail; help)

Memory Data Dump (LMEMDUMPMEM) Telecommand Packet Format
0x	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
000	Version=0			T=1	SH	APID=0x644:0
002	SF=3		Sequence Count
004	Packet Length=15
006	0	Function Code=0
008	CIDBF idents
00A	CDEST dest								CPAD8 pad
00C	CADDR32 addr
010	CSIZE32 size
014	Packet Checksum

LMEMDUMPMEM (pkt)
|  CIDBF idents (bf)
|  |  CLATUNIT latUnit (0-3)
|  |  CTRANID tranID (4-15)
|  CDEST dest (fld)
|  CPAD8 pad (fld)
|  CADDR32 addr (bf)
|  |  CADDRHI hi (0-15)
|  |  CADDRLO lo (16-31)
|  CSIZE32 size (bf)
|  |  CSIZEHI hi (0-15)
|  |  CSIZELO lo (16-31)

typedef struct _MEM_LMEMDUMPMEM_Pkt {

    /* CCSDS header */
    char                 hdr[8];

    /* Command payload */
    MEM_LMEMDUMPMEM_Prm  pay;

} MEM_LMEMDUMPMEM_Pkt;

Fields:

CADDR32 (index)

Attribute(s):  

Brief:  "32-Bit Address/Offset Bitfield"

Instance(s):  addr

Bitfield containing the full 32 bits of the starting address or offset.

CDEST (index)

Attribute(s):  

Brief:  "Dump Telemetry Destination"

Instance(s):  dest

Destination for the dump telemetry (0=1553, 1=SSR).

CIDBF (index)

Attribute(s):  

Brief:  "LAT Unit and Transaction ID Bitfield"

Instance(s):  idents

Bitfield to contain the LAT unit that is the target of a MEM telecommand and the transaction ID for the MEM telecommand.

CPAD8 (index)

Attribute(s):  

Brief:  "8-bit padding"

Instance(s):  pad

Explicit padding of 8 bits.

CSIZE32 (index)

Attribute(s):  

Brief:  "32-Bit Word Count Bitfield"

Instance(s):  size

Bitfield containing the full 32-bit word count value.