Sundance SMT387 - Manual (Page 19)

Version 1.0.3 Page 19 of 42 SMT387 User Manual
SHB Cable Assembly
The cable is custom made by Precision Interconnect and a cable assembly solution
builder can be found at:
http://www.precisionint.com/tdibrsb/content/howtouse.asp
SHB Inter Modules solutions
High-speed data transfer can be achieved between TIM modules thanks to the use of
a 60-way flat ribbon micro-coax cable or via PCB connections.
InterModule PCBs can be found at:
Inter Module Connections
As a result, NO DIFFERENTIAL lines are required to transfer data on long distances
and at speeds in excess of 100MHz, which allows the full use of the SHB connector
60 pins.
Half Word Interface (16-bit SHB Interface)
The SHB connectors provide to the FPGA connections to the external world.
You can implement your own interface to transfer data over using these connectors,
but if you want to communicate with other Sundance TIM modules, you can
implement a Half Word (Hw) interface sitting on 25 pins of an SHB connector.
Then, the SHBs are parallel communication links for synchronous transmission.
An SHB interface is derived from the SDB interface which is a 16-bit wide
synchronous communication interface.(
SUNDANCE SDB specification )
The differences are:
The SHB interface can be made Byte (8 bits), Half Word (16 bits) or
Word (32 bits) wide.
The transfer rate can be increased thanks to better quality interconnect.
As an example, let us consider the Half Word (Hw) SHB interface.
You can implement 2 x 16-bit SHB interfaces per SHB connector, and have some
spare signals for User defined functions. (no differential lines are needed thanks to
our SHB cable assembly described in
SHB Cable Assembly ).
The SMT387 provides one SHB interface on one connectors and can support data
rates of 400MB/s at 100MHz
You must refer to the latest
SUNDANCE SDB specification for technical information
on how it works.