31-May-94
mod 6-Mar-96 PDM
mod 1998 SK
mod 03/17/01 sk

                       BD Board Trigger Assignments
                       ----------------------------

file: ~e787/tr2/doc/bd_assignments.txt

Legend:	Trig	= front panel label
	Name	= trigger name
	Bit	= bit number in enable mask (counting from 0)
	BS	= beam strobe
	DS	= detector strobe
	Comments= comments, in=installed

Trig	Name		Bit	BS	DS	Comments
----	----		---	--	--	--------
B01	pi-scat		20	pi-beam	T.2
B02			21
D01			00
D02	K-beam		01	K-beam	K-beam
D03	endcap Kmu2	02	K-beam	EC sum
D04	xenon flasher	03	flash	flash	in
D05			04	
D06	pi-beam 	05      pi-beam pi-beam moved from D01 at unknown time
D07			06	
D08			07	
D09			08	
D10	cosmic		09	T.2	T.2	in, T.2 IC (spill or high)
D11	pulser		10	self	self	in
D12	end-of-spill	11	self	self	in
D13	YAlO source	12	self	self	in
D14	BV Sum		13	self	self	in, random trigs, for CCD peds
D15	rsmon LED	14	self	self
D16	tdmon		15	self	self
D17	Kbeam/pibeam	16	self	self	in, temporary
D18	rsmon source	17	self	self
D19	pulser*BG_bar	18	self	self	in, during 1998 run

BD board output register assignments
Legend:	fpout	 = front panel position, indicates pair number on J5
	bit	 = output register bit (0:31)
	function = function of signal
	comment	 = comment

fpout	bit	function		comment
-----	---	--------		-------
 1	24	Xenon trig enable
 2	25	Xenon select pulser
 3	26	rsmon enable
 4	27	tdmon enable
 5	28
 6	29
 7	30
 8	31
 9	19
10	22
11	23