Media: fiber optic, GLINK
Record Length: fixed

	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
1	VRB START				Header Length								#Dwords MSb				#LVDS Links
2					Hdr Fmt			Obj Fmt					#Dwords LSb
3					Tick								Data Type
4					Turn
5					FW Minor Version								FW Major Version
6					Reserved for diagnostic data
:					Input Link Data Block (140 frames)
147					Data Type								Tick
148					Vertical Parity
149					0xDEAD
150					0xBEEF
151					0xBABE
152	VRB END

Field Definitions

note: empty cells will contain zeros

VRB START = "0101"

Header Length = 0x03

#Dwords MSb = number of data words (upper nibble) = 0

#LVDS Links = 10

Hdr Fmt = Header Format, "010"

Obj Fmt = Object format, "00001"

#Dwords LSb = number of data words (lower byte) = 140 = 0x8C

Tick = The accelerator bunch crossing number

Data Type = 0x07

Turn = The accelerator turn (revolution) number

FW Minor Version = Firmware version tag, 0x00

FW Major Version = Firmware version tag, 0x02

Input Link Data Block = ten DFES input records are concatenated and stored here as follows:

  "00000000000"+link0 frame1 bits[20:16]
  link0 frame1 bits[15:0]
  "00000000000"+link0 frame2 bits[20:16]
  link0 frame2 bits[15:0]
  ... 
  "00000000000"+link9 frame7 bits[20:16]
  link9 frame7 bits[15:0]

Vertical Parity = not supported, 0x0000

VRB END = "1010"

General Information

Revision History