 C166 User's Guide | |
| Home Products Events Support | |
On-Line Manuals
C166 User's Guide
C166 Introduction Compiling Programs Language Extensions Preprocessor Advanced Programming Sections, Classes, and Groups
Special Sections Locating Sections Customization Files Startup Code STARTUP.A66 START167.A66 Basic I/O Memory Allocation TRAPS.C Optimizer Optimizer Options General Optimizations 80C166-Specific Optimizations Global Register Coloring DPP Registers Stacks System Stack User Stack Stack Sizes System Stack Size User Stack Size XBUS Memory and Peripherals On-chip XRAM XBUS Peripherals Interfacing C to Assembler Function Parameters Function Return Values Using the SRC Directive Register Usage Example Routines TINY Model SMALL Model COMPACT Model MEDIUM Model LARGE Model Data Storage Formats Bit Variables 1-byte Scalars 2-byte Scalars 4-byte Scalars float Scalars float Errors double Scalars double Errors near Pointers far Pointers huge Pointers xhuge Pointers Absolute Memory Access Absolute Access Macros Linker Location Controls Debugging Error Messages Library Reference AppendixXBUS Memory and Peripherals
The XBUS is the internal bus used to access external, off-chip devices (memory or peripherals). Access to the XBUS is slower then other on-chip hardware. Some C16x/XC16x derivatives have on-chip memory or peripherals that are connected to the XBUS.
- On-chip XRAM is on-chip memory that is connected to the XBUS. This memory may be used for program variables or buffers.
- XBUS Peripherals are on-chip peripherals that are connected to the XBUS instead of SFR memory.
| Contact Site Map Press Privacy | Copyright © 2008 Keil™, An ARM® Company. All rights reserved. |
