L8051XC1: Legacy-Configurable 8051-Compatible Microcontroller IP Core

Overview Key Features Offering Brief What's Included Ordering Information Documentation & Resources Markets

Computer Aided Software Technologies, Inc (dba CAST)

Member

The L8051XC1 core implements an MCS®51-compatible microcontroller that is specially designed to match the timing and peripherals of legacy 8051 MCU-based systems. The core can be configured to execute an instruction every 12, 6, or 4 clock cycles. Architectural extensions are user-selectable, including multiple data-pointers, a multiply-division unit, and a power management unit. Furthermore, the 8051 CPU can be coupled with a wide range of peripherals matching the behavior and timing of peripherals found in legacy architectures from Intel, Philips/NXP, Siemens/Infineon, Maxim/Dallas, Texas Instruments and others. Several pre-configured versions are offered; custom variations are also available. The L8051XC1 runs legacy code, but new software development is facilitated through CAST’s on-chip debugging option, and de-bug pods that cooperate with IAR Embedded Workbench & Keil uVision™ IDEs. This product builds on CAST’s experience with hundreds of 8051 IP ...

View Partner Website

Partner Product Page

Contact Now

Contact Computer Aided Software Technologies, Inc (dba CAST)

LeadSource

ASAP Account ID

Record Type Name

Key Features

Fully compatible with the MCS® 51 instruction set, enabling seamless execution of legacy software.
Configurable CPU: choose 12, 6, or 4 clock cycles per machine cycle to balance performance and efficiency.
Includes a broad set of optional peripherals like SPI, I2C, timers, DMA, and real-time clock for flexible designs.
JTAG-based On-Chip Debug Support (OCDS) simplifies development and accelerates debugging and verification.
Supports IAR Embedded Workbench and Keil uVision™ IDEs for easy integration with popular development tools.
Offers up to 119 Special Function Registers, 5 I/O ports, and interrupt controller with 2–4 levels and 6–18 sources.
Features a Power Management Unit with IDLE and STOP modes to reduce power in energy-sensitive applications.
Optional Multiply/Divide unit, advanced external memory interface, and support for external DMA controllers.

Offering Brief

Device Family	Arria® V GT FPGA, Arria® V GX FPGA, Arria® V GZ FPGA, Arria® V ST SoC FPGA, Arria® V SX SoC FPGA, Cyclone® IV E FPGA, Cyclone® IV GX FPGA, Cyclone® V E FPGA, Cyclone® V GT FPGA, Cyclone® V GX FPGA, Cyclone® V SE SoC FPGA, Cyclone® V ST SoC FPGA, Cyclone® V SX SoC FPGA, Agilex® 3 FPGAs and SoC FPGAs C-Series, Agilex® 5 FPGAs and SoC FPGAs D-Series, Agilex® 5 FPGAs and SoC FPGAs E-Series, Agilex® 7 FPGAs and SoC FPGAs F-Series, Agilex® 7 FPGAs and SoC FPGAs I-Series, Agilex® 7 FPGAs and SoC FPGAs M-Series, Agilex® 9 FPGAs and SoC FPGAs Direct RF-Series, Arria® 10 GT FPGA, Arria® 10 GX FPGA, Arria® 10 SX SoC FPGA, Cyclone® 10 GX FPGA, Cyclone® 10 LP FPGA, MAX® 10 FPGA, Stratix® 10 AX SoC FPGA, Stratix® 10 DX FPGA, Stratix® 10 GX FPGA, Stratix® 10 SX SoC FPGA, Stratix® 10 TX FPGA, Stratix® III FPGA, Stratix® IV E FPGA, Stratix® IV GX FPGA, Stratix® V GS FPGA, Stratix® V GX FPGA
Offering Status	Production
Integrated Testbench	Yes
Evaluation License	Yes
Design Examples Available	Yes
Demo	No
Compliance	Yes
Latest Quartus Version Supported	24.3.1
Development Language	Encrypted Verilog, Encrypted VHDL, Verilog, VHDL