Sundance SMT498 - Manual (Page 21)

The following information shall be provided on the PMC card:
5V current drawn, peak and average
3.3V current drawn, peak and average
Note: While it may appear that a stacking height of 13.0mm is desirable, some hosts
may not accept this.
Grounding
Per section 4.14 of IEEE 1386-2001.
Conduction Cooling
As the SMT498 adheres to PrPMC standards, the entire active and hot parts are on
the back of the module, which is suitable to place a conduction plate at the back of
the module to provide conduction coolong.
Power Supply
The SMT498 shall conform to the PMC standard for single-size modules. The PCI
connectors supply the module with 5.0V and 3.3V power supply. The 3.3V will be
used to supply all LVTTL digital I/O voltages directly. The FPGA Core Voltage
(V
CCINT
= 1.5V) is generated from the 5.0V. FPGA Auxiliary voltage (V
CCAUX
= 2.5V) is
derived from 3.3V to minimise losses.
Note: Due to restrictions of the Virtex II Pro, the FPGA Auxiliary voltage (V
CCAUX
)
must be provided before V
CCO
(3.3V). Given that V
CCO
is generated externally and
V
CCAUX
is generated locally, there will need to be a means to switch V
CCO
built into the
hardware.
Standalone operation
A 4-pin 0.200” power connector such as the type used to power PC hard disks will
be provided on Side 2 of the module. This connector provides 5V, 12V power, and
ground. SMT498 will generate 3.3V on board from the 5V supply.
Only use this connector for standalone operation (i.e. when not plugged into a
PCI slot)!
Reset Structure
The SMT498 shall obey the reset signal provided by the PCI connector. In the
absence of an external reset signal, the module will bring itself out of reset once all
supplies are in compliance.
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