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Technical Support
On-Line Manuals
8051 Instruction Set Manual
Architecture Overview
Memory Classes and Layout
Classic 8051
Classic 8051 Memory Layout
Extended 8051 Variants
Extended 8051 Memory Layout
NXP 80C51MX
NXP 80C51MX Memory Layout
251 Architecture
251 Memory Layout
CPU Registers
8051 Variants
251 Architecture
Program Status Word (PSW)
Opcodes
Instructions
Architecture Overview
The 8051 Architecture Overview section describes:
- Memory Classes and Layout of the classic 8051, extended 8051 variants, and the NXP 80C51MX architecture
- CPU Registers of 8051 variants and the 251 architecture.
The picture below shows the object module flow and µVision components (in green) that can be used.
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