"Read registers" (APP/LRA)

ITOS Mnemonic:  LRAREAD

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

Read the register(s) specified by the command parameters.

Layout:  (hide detail; help)

Read registers (READ) 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=0x680:1
002	SF=3		Sequence Count
004	Packet Length=11
006	0	Function Code=1
008	CMPNT cmpnt								BLOCK block
00A	TEM tem								CC cc
00C	RC rc								FE fe
00E	REG reg								DEST dest
010	Packet Checksum

READ (pkt)
|  CMPNT cmpnt (fld)
|  BLOCK block (fld)
|  TEM tem (fld)
|  CC cc (fld)
|  RC rc (fld)
|  FE fe (fld)
|  REG reg (fld)
|  DEST dest (fld)

typedef struct _LRA_READ_Pkt {

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

    /* Command payload */
    LRA_READ_Prm         pay;

} LRA_READ_Pkt;

Fields:

BLOCK (index)

Attribute(s):  BLOCKS

Brief:  "Register block"

Instance(s):  block

The register block number to access, for components that have more than one such block.

CC (index)

Attribute(s):  

Brief:  "Cable controller"

Instance(s):  cc

The cable controller number, for those components accessed via a CC.

CMPNT (index)

Attribute(s):  CMPNTS

Brief:  "Component"

Instance(s):  cmpnt

The LRA component number of the detector component (GEM, EBM, TEM, etc) to access.

DEST (index)

Attribute(s):  

Brief:  "Output destination"

Instance(s):  dest

The destination for the generated register data. 0 = diagnostic stream (1552), 1 = science stream (SSR).

FE (index)

Attribute(s):  

Brief:  "Front-end number"

Instance(s):  fe

The front-end number, for those components located on a front-end.

RC (index)

Attribute(s):  

Brief:  "Readout controller"

Instance(s):  rc

The readout controller number, for those components accessed via an RC.

REG (index)

Attribute(s):  

Brief:  "Register"

Instance(s):  reg

The number of the register to access.

TEM (index)

Attribute(s):  

Brief:  "TEM number"

Instance(s):  tem

The TEM number to access, for those components that are TEM-based.