FIDO1100

NOT RECOMMENDED FOR NEW DESIGNS

32-Bit Real-Time Communications Controller

Analog Devices FIDO1100 Product Info

10 February 2026 7

Features

32-bit Core CPU
CISC architecture optimized for real time
CPU32+ (Motorola^® 68000) instruction-set compatible
Five hardware contexts, each with its own register set and interrupt vector table
An 8- or 16-bit external bus interface with programmable chip selects
24 Kbytes of high-speed internal user SRAM
32 Kbytes of high-speed internal user-mappable Relocatable Rapid Execution Memory (RREM)
A Memory Protection Unit (MPU)
An SDRAM controller
Flat, contiguous memory space
Non-aligned memory access support
Dedicated Peripheral Management Unit (PMU)

Four Universal I/O Controllers (UICs) capable of supporting the following protocols:
- GPIO
- 10/100 Ethernet with flexible MAC Address Filtering schemes
- EIA-232
- CAN
- SPI
- I²C™ Bus
- SMBus
Two channels of full-featured direct memory access (DMA) with deterministic arbitration
Two Timer/Counter Units (TCU)
A Watchdog timer, system timer, and context timers
JTAG emulation and debug interface
Available in 208-pin PQFP and BGA 15- by 15-mm packages
3.3V operation with 5V-tolerant I/O
Industrial temperature grade
Software development supported by libraries and tools including UIC firmware for various interface protocols and formats, as well as a customized GNU tool set.

Part details & applications

fido1100 is the first product in the fido™ family of real-time communication controllers. The fido communication controller architecture is uniquely optimized for solving memory bottlenecks, and is designed from the ground up for deterministic processing. Critical timing parameters, such as context switching and interrupt latency, are precisely predictable for real-time tasks. The fido1100 also incorporates the Universal I/O Controller (UIC™) that is configurable to support various communication protocols across multiple platforms. This flexibility relieves the designer of the task of searching product matrices to find the set of peripherals that most closely match the system interface needs. The Software Profiling and Integrated Debug EnviRonment (SPIDER™) has extensive real-time code debug capabilities without the burden of code instrumentation.

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