I would say that PCIe remains the
backbone of embedded and industrial
systems because its unified architecture
is very mature, which is crucial since
the industry invariably prioritizes
stability and faster time-to-market over
the speed or peak bandwidth."
Fortunately, PCIe still provides flexibility even at
these lower speed grades. For instance, engineers
can scale link width from x1 to x16 to match
throughput needs without changing the underlying
switching fabric. Such a scaling model can keep
designs adaptable as products change over time.
Microchip is strengthening PCIe-based embedded
systems by
• Integrating switching, Ethernet, USB, and RS-485
endpoints into single devices that reduce board
complexity and improve reliability.
• Providing scalable switch architectures that let
designers fan out limited SoM PCIe lanes into full
peripheral maps.
• Delivering deterministic timing and coherent I/O
behavior in mixed industrial interfaces connected
through the PCIe fabric.
• Offering configuration and diagnostics that
simplify bring-up and firmware development in
multi-interface designs.
Javier Loranca Coutiño
Power Electronics Engineer,
Bosch
C h a p t e r 1 | P C I e f o r I / O a n d P e r i p h e r a l C o n n e c t i v i t y
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8 Experts Discuss PCIe for Emerging Embedded Systems
