W65C816SRTL: 8/16-Bit 65xx Microprocessor

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The W65C816SRTL Soft Core from The Western Design Center is a general purpose 8/16-bit Microprocessor Core. The core was designed to emulate the available W65C816S GDSII Hard Core. This characteristic makes the soft core ideal in FPGA prototyping systems for ASIC designs that will use the hard core, while remaining flexible for strictly FPGA designs.

Features

• 8-bit Data Bus
• 24-bit Address Bus 16Mbyte Memory and IO Space
• 16-bit ALU, Accumulator, Stack Pointer and Index Registers
• 91 Variable Length Instructions
• 24 Addressing Modes
• 1.8-5V Operating Voltage
• 14MHz Operating Bus Speed
• Valid Data Address (VDA) and Valid Program Address (VPA) for cycle steal DMA implementation
• Abort (ABORTB) input and associated vector for processor repairs of bus error conditions
• Separate program and data bank registers for program segmentation or full 16 MByte linear addressing
• Direct Register and stack relative addressing for reentrant, recursive and re-locatable programming
• Block Move Instructions
• Fully Static for Power and Radiation Management  
   

Implementation Results

The following are typical performance and utilization results.

Development Tools

WDC supports the 65xx brand microprocessor technology with an ANSI Standard C compiler tool suite that includes the Terbium Integrated Development Environment (TIDE). In addition to integration of WDC development tool suite TIDE also provides debugger features with unlimited software breakpoints for in-circuit debug through the TIDE port embedded monitor. Available Development Tools:

• TIDE
• ISO/ANSI Standard C Compiler
• Assembler
• Linker
• Librarian
• Object Inspector
• Symbol Tool