Crux Interfacing Solutions CRXi 122801 用户手册
CRXi
µµµµ
Core Module
CR
µµµµ
X Logic,
2001 all rights reserved
3
Introduction
Overview
Thank you for your purchase of the CRXi core module. The CRXi is a state of the art microcontroller
“engine” used in small control and data acquisition products. On this small form factor, measuring 3 by 2
inches, are the processor, flash ROM, non-volatile RAM, crystal, reset circuitry and expansion connector.
This frees the design engineer of the many details of address/data bus connections and decoding glue logic
normally associated with layout of these components.
“engine” used in small control and data acquisition products. On this small form factor, measuring 3 by 2
inches, are the processor, flash ROM, non-volatile RAM, crystal, reset circuitry and expansion connector.
This frees the design engineer of the many details of address/data bus connections and decoding glue logic
normally associated with layout of these components.
About this manual
This manual will cover the CRXi module in 3 sections. The first section, Introduction, describes briefly the
features of the CRXi, and very important disclaimer information. The user/buyer of this product is urged to
read and fully understand the disclaimer and warranty section. If there are any questions in this area, user is
urged to contact Crux Logic before using or purchasing this product. The second section, Hardware, will
cover in greater detail the inner workings of the board, external chip selects, memory, expansion connector,
specifications and related topics. The third section, Programming the CRXi, will cover how to program and
use the internal bootloader, special registers unique to the CRXi, and more on the memory mapping and
external chip selects.
features of the CRXi, and very important disclaimer information. The user/buyer of this product is urged to
read and fully understand the disclaimer and warranty section. If there are any questions in this area, user is
urged to contact Crux Logic before using or purchasing this product. The second section, Hardware, will
cover in greater detail the inner workings of the board, external chip selects, memory, expansion connector,
specifications and related topics. The third section, Programming the CRXi, will cover how to program and
use the internal bootloader, special registers unique to the CRXi, and more on the memory mapping and
external chip selects.
This manual is not intended as a tutorial on the 8051 microcontroller
or PSD Flash architecture. It is
beyond the scope of this document. The 8051 is covered in exhaustive detail from many sources, including
web sites, books, datasheets and magazine articles, to name a few. The same holds true for the ST Micro
PSD flash
web sites, books, datasheets and magazine articles, to name a few. The same holds true for the ST Micro
PSD flash
device. Crux Logic also does not support any toolsets, .ie assemblers, compilers, simulators or
debuggers. The end user is assumed to have detailed knowledge of the 8051 architecture and the software
tools he/she has chosen. References used by Crux Logic in the design of this product are given at the end
of this document. The end user is urged to use these documents and data sheets in their design stage. These
are easily obtainable through the manufacturers web sites.
tools he/she has chosen. References used by Crux Logic in the design of this product are given at the end
of this document. The end user is urged to use these documents and data sheets in their design stage. These
are easily obtainable through the manufacturers web sites.
Disclaimer
This manual has been checked for accuracy. Crux Logic assumes no liability for damages incurred directly
or indirectly from errors and/or discrepancies between this manual and the CRXi. Crux Logic assumes no
liability for the use or misuse of this product in the end users application, or the end users negligence or
lack of knowledge in said application.
or indirectly from errors and/or discrepancies between this manual and the CRXi. Crux Logic assumes no
liability for the use or misuse of this product in the end users application, or the end users negligence or
lack of knowledge in said application.
Crux Logic products are intended for use in small, non-critical control systems, data acquisition,
automation and education purposes.
automation and education purposes.
Crux Logic is not responsible or liable for any third party vendor product defects or discrepancies.
Crux Logic products are not intended or authorized for use as critical components in life support systems,
or in any systems where life or property or consequential damage are potential results of equipment failure.
Such systems are systems which are used to support or sustain life, systems that are critical to property or
equipment and whose failure could result in significant injury to the user and/or hardware or equipment
failure.
or in any systems where life or property or consequential damage are potential results of equipment failure.
Such systems are systems which are used to support or sustain life, systems that are critical to property or
equipment and whose failure could result in significant injury to the user and/or hardware or equipment
failure.
Use of this product in any form, or application, is the sole responsibility of the user/buyer. Design your
application carefully .
application carefully .
Copyrights
This manual is copyright by Crux Logic, with all rights reserved.