Master Timing Module

1
Master Timing Module

• PHENIX 9.4 MHz Clock
• RHIC Fiducial
• PHENIX Start
• PHENIX Stop
• PHENIX Lvl 1- Trigger

2
PHENIX Master Timing
3
PHENIX 9.4 Mhz Clock RHIC Fiducial
sel
MUX
300Mhz Osc.
DIV 32
9.4 MHz
TO DELAY
9.4 MHz
RHIC 28 MHz
DIV 3
COUNT 120
MUX
sel
FIDUCIAL
TO DELAY
RHIC FIDUCIAL
4
PROGRAMMABLE DELAY
vme
vme
vme
1/4 CLOCK SKEW
COURSE DELAY
FINE DELAY
DELAYED SIGNAL
INPUT SIGNAL
SKEW CLOCK UP TO 2.2ns IN 20ps STEPS
SKEW CLOCK UP TO 38.4ns IN .15ns STEPS
SKEW CLOCK UP TO 106ns IN 26ns STEPS
5
PHENIX Start Stop
VME
VME
LOGIC
1/4 DELAY SELECT
START
106ns pulse
STOP
1/4 DELAY SELECT
106ns pulse
CLOCK
VME
6
PHENIX LVl 1 - Trigger
TO GRANULE TIMING MODULE LVDS
Transition Module
lev1
lev1
lev1
32 levl 1 LVDS
lev1
lev1
7
Transition Modules

• CLOCK MODULE
• RECEIVE 28MHZ CLOCK RECEIVED FROM RHIC DIV BY
  THREE
• SEND 9.4 Mhz CLOCK TO GTM
• START,STOP,FIDUCIAL LVL 1 MODULE
• SEND START, STOP, FIDUCIAL LVL 1 TO GTM

8
Memory Mapping
Base 0010Eh
Status/Control Registers
Base 00100h
PHENIX Specific Registers
Base 000FFh
Base 00000h
9
Master Timing Module Registers
10
Master Timing Module Transition Modules
11
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