From mp@hep.ucl.ac.uk Wed Jan 28 12:10:04 1998 Date: Wed, 28 Jan 1998 11:03:41 GMT From: "MARTIN POSTRANECKY,UCL-PHYSICS DEP,HEPP GROUP,GOWER ST,LONDON WC1E 6BT,TEL:(00-44)-[0]171-419 3453,FAX:[0]171-380 7145" To: meh@ax8.hep.ucl.ac.uk, mp@ax8.hep.ucl.ac.uk Subject: info on MTC_2_FRONT.PANEL Z-MTC-2 FRONT PANEL ==================== MP - UCL, 16 February 1996 A) MTC Status LEDs and abbreviations : -------------------------------------- * DS.01 Trigger TRG * DS.03 Nline N * DS.02 Abort ABT * DS.04 Interrupt INT FAULTS : -------- g DS.05 +5V supply +5V DS.13 BCN0 Fault BC0 g DS.06 -5V2 supply -5V DS.14 Clock Fault CLK * DS.07 Error ERR DS.15 Command Fault COM * DS.08 Initialise Out INO * DS.16 Next Buffer Full FUL * DS.09 Test Enable TEN DS.17 LTC BCN0 Fault LB0 y DS.10 Pause Mode PAU DS.18 LTC Clock Fault LCK DS.11 ROC Pipeline Freeze FRE DS.19 LTC Reset LRS DS.12 End Of Run EOR DS.20 PLL Fault PLL MTC STATE : MTC STATE : ----------- ----------- DS.21 MTC BUSY BSY DS.29 BUSYA-MTC Accept BAC DS.22 Stand By STB y DS.30 XTAL clock running XCK DS.23 Available AVA y DS.31 GFLT clock running GCK DS.24 Initialise INI DS.32 Pipeline running P/L DS.25 Ready RDY DS.33 Copy running CPY DS.26 Accept ACC DS.34 ROC in Control ROC DS.27 BUSYS-MTC Stand By BST DS.35 GFLT in Control GFL DS.28 BUSYI-MTC Initialise BSI DS.36 LTC BUSY LBY Notes : ------- 1. LEDs marked -*- have an extended flash, so a single pulse can be seen : DS.01, DS.02, DS.03, DS.04 have a short extended flash. DS.07, DS.08, DS.09, DS.16 have a longer extended flash. 2. LEDs marked -g- are green : DS.05, DS.06 3. LEDs marked -y- are yellow : DS.10, DS.30, DS.31 4. DS.01, DS.02, DS.08, DS.09 show the commands output to the LTCCs. 5. DS.10, DS.11, DS.12 show when the system is in a special state. 6. DS.13 - DS.20 show the Control Status register Fault bits. Once ON they stay on until cleared by the ROC (or RESET or Start of Run), except DS.16 Next Buffer Full (unlike the CSR bit). 7. DS.21 - DS.36 show the Current State register bits. /cont. - 2 - B) "LTC BUSY INPUTS" and "CURRENT BUFFER USED" LEDs : ----------------------------------------------------- DS.47 LTC Busy Input 1 g DS.37 DPM buffer 0 DS.48 LTC Busy Input 2 g DS.38 DPM buffer 1 DS.49 LTC Busy Input 3 g DS.39 DPM buffer 2 DS.50 LTC Busy Input 4 g DS.40 DPM buffer 3 DS.51 LTC Busy Input 5 g DS.41 DPM buffer 4 DS.52 LTC Busy Input 6 g DS.42 DPM buffer 5 DS.53 LTC Busy Input 7 g DS.43 DPM buffer 6 DS.54 LTC Busy Input 8 g DS.44 DPM buffer 7 DS.55 LTC Busy Input 9 g DS.45 DPM buffer 8 DS.56 LTC Busy Input 10 g DS.46 DPM buffer 9 DS.57 LTC Busy Input 11 DS.58 LTC Busy Input 12 DS.59 LTC Busy Input 13 DS.60 LTC Busy Input 14 DS.61 LTC Busy Input 15 DS.62 LTC Busy Input 16 DS.63 LTC Busy Input 17 DS.64 LTC Busy Input 18 DS.65 LTC Busy Input 19 DS.66 LTC Busy Input 20 Note : LEDs marked -g- are green ------ C) List of Test Points and abbreviations : ------------------------------------------ TEST PNTS : ----------- TP.0 GND Signal ground GND TP.1 96NSCK 96 nsec clock from GFLT 96N TP.2 48NSCK 48 nsec clock from PLL 48N TP.3 N48NSCK 48 nsec clock from delay circuit N48 TP.4 CLK14 48 nsec clock to Z-LTCCs C14 TP.5 INCLK 48 nsec clock strobing GFLT signals INC TP.6 BCN0GFLT BCN0 from GFLT BC0 TP.7 GFLTACCEPT ACCEPT from GFLT ACC TP.8 TESTEND TEST ENABLE from GFLT TEN /cont. - 3 - D) Description of some of the LEDs : ------------------------------------ DS.01 TRIGGER Trigger is output to the LTCs. DS.03 NLINE MTC is addressed by the ROC. DS.07 ERROR Error is caused by COMMAND FAULT, RESET, entering STAND BY, or is set by the ROC. FATAL ERROR sent to GFLT. DS.08 INITIALISE OUT Initialise command sent to LTCs DS.16 NEXT BUFFER FULL An LTC has Next Buffer Full (but can accept a Trigger if BUSY off). DS.20 PLL FAULT The 96nsec-to-48nsec PLL has lost its lock DS.21 MTC BUSY BUSY output to GFLT. Always on under ROC Control. BUSY off means ready for FLT Accept (Initialise or Trigger) from GFLT. DS.23 AVAILABLE Available for Run and waiting for Initialise. DS.25 READY Ready and waiting for Trigger. DS.26 ACCEPT BUSY while accepting an event after Trigger. DS.30 XTAL CLOCK RUNNING (selected if not GFLT in Control). DS.31 GFLT CLOCK RUNNING (selected only if GFLT in Control). DS.34 ROC IN CONTROL Internal XTAL clock and ROC commands are output to LTCCs. DS.35 GFLT IN CONTROL External GFLT clock and GFLT signals are output to LTCCs. DS.36 LTC BUSY An (enabled) LTC is BUSY : the OR of the enabled LTC BUSY inputs. Enabled but unused BUSY inputs must be pulled down by 50 ohms (or less). DS.47-66 LTC BUSY INPUTS 1 - 20 Shows the state of the 20x Z-LTC BUSY inputs. DS.37-46 DPM BUFFERS 0 - 9 Shows the current buffer free to accept or accepting data. /cont. - 4 - E) Layout and Labels on Front Panel : ------------------------------------- BUSY IN: BUFFER: TRG N 1 0 ABT INT 2 1 ____ FAULTS: 3 2 |M *) +5V BC0 4 3 |T -5V CLK 5 4 |C ERR COM 6 5 | INO FUL 7 6 |C TEN LB0 8 7 |T PAU LCK 9 8 |R FRE LRS 10 9 | EOR PLL 11 TEST PNTS: |P MTC STATE: 12 GND |1 BSY BAC 13 96N ---- STB XCK 14 48N ____ AVA GCK 15 N48 |G INI P/L 16 C14 |F RDY CPY 17 INC |L ACC ROC 18 BC0 |T BST GFL 19 ACC | BIN LBY 20 TEN |C |L |K | |P |5 RESET EXT.TRIG.IN ---- ____ TRIG. |G |F S.STEP LTC BUSY IN |L |T 1 | CLOCK OUT 2 |C 1 3 |T 2 4 |R 3 5 | 4 6 |P 7 |4 8 ---- 9 ____ MTC-LTC 10 |G BUS -B- 11 |F OUT 12 |L 13 |T 14 | 15 |N MTC-LTC 16 |U BUS -A- 17 |M OUT 18 | 19 |P 20 |3 ---- Note : *) turn each letter ------ by 90 deg clockwise This version : MP-UCL, 16 Feb. 1996 Previous versions : 29 Nov. 1994 24 Nov. 1994 23 Nov. 1994 8 Nov. 1994 7 Nov. 1994 JBL, 14 Apr. 1992