- 您现在的位置：买卖IC网 > PDF目录17091 > PMF18WE1 (Microchip Technology)PROCESSOR MODULE FOR ICE4000 PDF资料下载
参数资料
| 型号： | PMF18WE1 |
| 厂商： | Microchip Technology |
| 文件页数： | 33/98页 |
| 文件大小： | 0K |
| 描述： | PROCESSOR MODULE FOR ICE4000 |
| 标准包装： | 1 |
| 模块/板类型： | 处理器模块 |
| 适用于相关产品： | ICE4000 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页当前第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页
MPLAB ? ICE 4000
USER ’S GUIDE
Chapter 5. External Memory Usage
5.1
5.2
5.3
INTRODUCTION
Some Microchip devices allow the extension or replacement of program memory
resources with external (off-chip) memory devices. Of these devices, the MPLAB ICE
4000 supports PIC18F8XXX devices (but not PIC17CXXX devices.)
How the emulator functions for these modes is discussed here.
HIGHLIGHTS
Topics covered in the chapter are:
PIC18F8XXX PROGRAM MEMORY MODES
PIC18F8XXX devices are capable of operating in any one of several Program Memory
modes, using combinations of on-chip and external program memory. Available
Program Memory modes are as follows:
? The Microprocessor mode permits access only to external program memory; the
contents of the on-chip Flash memory are ignored. The program counter permits
access to a linear program memory space and defines the amount of accessible
program memory (see Section 5.3.1 “Program Counter” .)
? The Microprocessor with Boot Block mode accesses on-chip Flash memory
from address 000000h to the end of the boot block. Above this, external program
memory is accessed all the way up to the program counter accessible limit (see
between the two memories, as required.
? The Microcontroller mode accesses only on-chip Flash memory. Attempts to
read above the physical limit of the on-chip Flash causes a read of all ‘0’s (a NOP
instruction.)
? The Extended Microcontroller mode allows access to both internal and external
program memories as a single block. The device can access its entire on-chip
Flash memory; above this, the device accesses external program memory up to
the program counter accessible limit (see Section 5.3.1 “Program Counter” .) As
with Boot Block mode, execution automatically switches between the two memo-
ries, as required.
In all modes, the device has complete access to data RAM and EEPROM. For more
information, consult the device data sheet section “Memory Organization”.
? 2004 Microchip Technology Inc.
DS51490A-page 27
相关PDF资料 |
PDF描述 |
|---|---|
| ECM18DRTN-S13 | CONN EDGECARD 36POS .156 EXTEND |
| 0210490266 | CABLE JUMPER 1.25MM .152M 20POS |
| HW-V5-ML510-G | BOARD EVAL FOR VIRTEX-5 ML510 |
| SDR-T | SCOTCH CODE REFILL T |
| RCM12DTKT | CONN EDGECARD 24POS DIP .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PMF18WF0 | 功能描述:插座和适配器 Processor Module RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
| PMF18WH0 | 功能描述:插座和适配器 PIC18F ICE4000 RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
| PMF18WJ0 | 功能描述:插座和适配器 Processor MOD RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
| PMF18WJ1 | 功能描述:插座和适配器 Processor Module RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
| PMF18WK0 | 功能描述:插座和适配器 PIC18F RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
发布紧急采购，3分钟左右您将得到回复。