ROCKM Super-Frame

Contents:

• Legend
• Super-Frames during the data aquisition
• Super-Frames during the Ring test

Legend:

X	don't care
L	Lastbits - the last crate in a chain (only one) will have this asserted low
Rg	Ring Test bit. Will be asserted low only during a Ring test
Ca	Crate Address
SUPFRM	Indicated superheader or superfooter
SOFRM	Start of Frame
EOFRM	End of Frame
SLVADD	Slave address (1111 = near the ROCK)
SLVCHA	Slave Channel data
RSV	Reserved
P	Parity Fail bits. One for each of the ROCK crates. (0=failure)
Ov	Overflow of Superframe counter =0

[30:28]	27	26	25	24	[23:20]	[19:13]	12	[11:0]
Crt add	NA	SUPFRM	SOFRM	EOFRM	SLVADD	SLV CHANNEL	RSV	DATA

A super-frame is made of:

• a super-header

  [30:28]	27	26	25	24	[23:20]	[19:12]	[11:0]
  000	0	0	0	1	1111	Chain	Trigger

• zero or more sub-frames
• a super-footer

  [30:28]	27	26	25	24	[23:19]	18	[17:0]
  PPP	0	0	1	0	PPPPP	Ov	Count, including everything but super-header and super-footer

A sub-frame is made of:

• a sub-header

  [30:28]	27	26	25	24	[23:20]	19	18	17	16	15	[14:12]	[11:0]
  Ca	0	1	0	1	0000	0	1	L	0	0	Ca	Trigger

• data from the crate slaves, starting from the slave with the higher address

  [30:28]	27	26	25	24	[23:20]	[19:13]	12	[11:0]
  Ca	0	1	1	1	SLVADD	SLVCHA	X	DATA

• a sub-footer

  [30:28]	27	26	25	24	[23:0]
  Ca	0	0	1	0	Parity including the sub-header

[30:28]	27	26	25	24	[23:20]	[19:13]	12	[11:0]
Crt add	NA	SUPFRM	SOFRM	EOFRM	SLVADD	SLV CHANNEL	RSV	DATA

A super-frame is made of:

• a super-header

  [30:28]	27	26	25	24	[23:20]	[19:12]	[11:0]
  000	0	0	0	1	1110	Chain	Trigger

• zero or more ring data

  [30:28]	27	26	25	24	[23:20]	19	18	17	16	15	[14:12]	[11:0]
  Ca	0	1	1	1	0000	0	1	L	0	0	Ca	Trigger

• a super-footer

  [30:28]	27	26	25	24	[23:19]	18	[17:0]
  PPP	0	0	1	0	PPPPP	Ov	Count, including everything but super-header and super-footer