Datasheet 搜索 > 微控制器 > Microchip（微芯） > PIC18F4331-I/P 数据手册 > PIC18F4331-I/P 用户编程技术手册 6/40 页
器件3D模型￥ 60.326
PIC18F4331-I/P 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
PDIP-40
描述:
MICROCHIP PIC18F4331-I/P 微控制器, 8位, PIC18F4xxx, 40 MHz, 8 KB, 768 Byte, 40 引脚, DIP
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P1P2P3P4Hot
导航目录
PIC18F4331-I/P数据手册
Page:
of 40 Go
若手册格式错乱，请下载阅览PDF原文件
PIC18F2331/2431/4331/4431
DS30500B-page 6 2010 Microchip Technology Inc.
In addition to the code memory space, there are three
blocks in the configuration and ID space that are acces-
sible to the user through table reads and table writes.
Their locations in the memory map are shown in
Figure 2-5.
Users may store identification information (ID) in eight
ID registers. These ID registers are mapped in
addresses 200000h through 200007h. The ID locations
read out normally even after code protection is applied.
Locations 300000h through 30000Dh are reserved for
the configuration bits. These bits select various device
options and are described in Section 5.0. These
configuration bits read out normally even after code
protection.
Locations 3FFFFEh and 3FFFFFh are reserved for the
device ID bits. These bits may be used by the program-
mer to identify what device type is being programmed
and are described in Section 5.0. These device ID bits
read out normally even after code protection.
2.3.1 MEMORY ADDRESS POINTER
Memory in the address space 0000000h to 3FFFFFh is
addressed via the table pointer which is comprised of
three pointer registers:
• TBLPTRU, at RAM address 0FF8h
• TBLPTRH, at RAM address 0FF7h
• TBLPTRL, at RAM address 0FF6h
The 4-bit command, ‘0000’ (core instruction), is used to
load the table pointer prior to using many read or write
operations.
FIGURE 2-5: CONFIGURATION AND ID LOCATIONS FOR PIC18FXX31 DEVICES
TBLPTRU TBLPTRH TBLPTRL
Addr[21:16] Addr[15:8] Addr[7:0]
ID Location 1 200000h
ID Location 2 200001h
ID Location 3 200002h
ID Location 4 200003h
ID Location 5 200004h
ID Location 6 200005h
ID Location 7 200006h
ID Location 8 200007h
CONFIG1L 300000h
CONFIG1H 300001h
CONFIG2L 300002h
CONFIG2H 300003h
CONFIG3L 300004h
CONFIG3H 300005h
CONFIG4L 300006h
CONFIG4H 300007h
CONFIG5L 300008h
CONFIG5H 300009h
CONFIG6L 30000Ah
CONFIG6H 30000Bh
CONFIG7L 30000Ch
CONFIG7H 30000Dh
Device ID1 3FFFFEh
Device ID2 3FFFFFh
Note: Sizes of memory areas are not to scale.
000000h
1FFFFFh
3FFFFFh
01FFFFh
Code Memory
Unimplemented
Read as ‘0’
Configuration
and ID
Space
2FFFFFh
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
