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Constraint file signal names – Sundance SMT407 User Manual

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Version 1.0.0

Page 21 of 38

SMT407 User Manual

Constraint File Signal Names

According to the

SUNDANCE SHB specification

, 5 Byte-interfaces (from 0 to 4) can

be implemented on the 60 pins of a SHB connector. Each Byte interface has its own
CLK, WEN, REQ and ACK.

The signal names going from the FPGA to the SHB connector use the configuration
of 2 SDB interfaces.

So, when in Half Word configuration:

• 16-bit data D(0 to 15)
• CLK0 is borrowed from Byte configuration 0, WEN1, REQ1 and ACK1 are

borrowed from Byte configuration 1 to make configuration SDBA control
signals and

• CLK3 is borrowed from Byte configuration 3, WEN4, REQ4 ACK4 are

borrowed from Byte configuration 4 to make configuration SDBB control
signals.

The SHB connectors are J3 and JA3. (See

Figure 10: SMT407 Components placement-

Top view and See

Figure 11: SMT407 Components placement-Bottom view)

Please refer to section SHB Headers for more information.