1. DAQ / Trigger Card for HCAL SLHC Readout E. Hazen - Boston University
CMS Electronics Week - E. Hazen - DTC

2. CMS Electronics Week - E. Hazen - DTC
HCAL DTC (aka CMS-MCH)
Built on NAT-MCH base board
Single-width MCH module
Provides controls, clock distribution (TTC initially)
Provides DAQ interface via fat pipes (external SLink/TTS adapter)
Font panel I/O:
2x SFP+ optical transceiver DAQ + Spare
TTCrx fiber receiver
T2 gets power, GbE, SPI, I2C from NAT-MCH. 3.3V Regulators Clock fanout
Spartan-3A FPGA
T3 logic board V6 FPGA Fabric I/O to T3, T4
Connector board TTC optical rx, CDS SFP+ T4 T3 T2 T1
NAT-MCH base board
Standard MCH functions GbE to mezzanines
SPI for flash programming
I2C bus
CMS Electronics Week - E. Hazen - DTC

3. CMS Electronics Week - E. Hazen - DTC
Ports Use
TTC-derived clock on MCH CLK1 (MLVDS per std)
Fabric A (port 0/1)
1000BaseX via NAT-MCH
Fabric B (port 2/3)
Encoded 80MB/sec (currently DC-LVDS)
Fabric D (port 4/8)
DAQ (GTX on V6 FPGA)
Fabric E (port 5/9)
Alternative controls (GPIO on V6 FPGA, DC-LVDS)
Port (a/b) represents (MCH1/MCH2) slot
CMS Electronics Week - E. Hazen - DTC

4. CMS Electronics Week - E. Hazen - DTC
NAT-MCH
Mezzanine
connector
CMS Electronics Week - E. Hazen - DTC

5. NAT-MCH Mezzanine Connector
Payload
power
GbE
(switched)
SPI
(flash programming)
IPMB
(I2C)
Note that there are many more GND on uTCA connectors
CMS Electronics Week - E. Hazen - DTC

6. CMS Electronics Week - E. Hazen - DTC
SFP/TTC board
T2 (clocks) board
T3 (fabric) board
SFP+ (2)
TTC Fiber
GbE (2)
CMS Electronics Week - E. Hazen - DTC

7. Harting Connectors (“old” version)
CMS Electronics Week - E. Hazen - DTC

8. CMS Electronics Week - E. Hazen - DTC
Front Panel
Provided by DTC
mezzanines
Provided by
NAT-MCH
TTC
Fiber rx
GbE Port 1
2 x SFP(+)
GbE Port 2
CMS Electronics Week - E. Hazen - DTC

9. DTC Clocks and Data Path
SFP/TTC
PCB
DAQ
SFP+ (2)
Virtex 6
LX130T Or
LX240T
Fabric D
(port 4/8)
DAQ I/O
Opto Rx
CDR
GTX
TTC in
TTC Data FO
160MHz
GTX
Fabric E
(port 5/9)
Spare Ctrl
T3 PCB
40/80 Mhz
DIV
GbE
Switch
GTX
Fabric B
(port 2/3)
Spartan 3A
TTC Data
Tx: TTC
Rx: TTS
T2 PCB FO FO
CLK1
40.xxx
LHC
Clk
40Mhz FO
CMS Electronics Week - E. Hazen - DTC

10. Services Provided by NAT-MCH
GbE via switch
Not yet used, but plan to use for DTC control and local DAQ
SPI bus
FPGA Flash programming (very convenient)
IPMI
Management (temperature readout, versions etc)
DTC control (backup path) via Atmel AVR-8 uC
Switched payload power
CMS Electronics Week - E. Hazen - DTC