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PIC18F14K22-E/P 用户编程技术手册 - Microchip(微芯)
制造商:
Microchip(微芯)
分类:
8位微控制器
封装:
PDIP-20
描述:
20引脚闪存单片机采用nanoWatt XLP技术 20-Pin Flash Microcontrollers with nanoWatt XLP Technology
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P2Hot
电气规格在P33P34
导航目录
PIC18F14K22-E/P数据手册
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若手册格式错乱,请下载阅览PDF原文件

PIC18F1XK22/LF1XK22
DS41357B-page 4 Advance Information © 2009 Microchip Technology Inc.
3.0 MEMORY MAPS
For the PIC18F14K22/LF14K22 device, the program
Flash space extends from 0000h to 03FFFh
(16 Kbytes) in two 8-Kbyte blocks. For the
PIC18F13K22/LF13K22 device, the program Flash
space extends from 0000h to 01FFFh (8 Kbytes) in two
4-Kbyte blocks.
For the PIC18F14K22/LF14K22 addresses 0000h
through 0FFFh, however, define a “Boot Block” region
that is treated separately from Block 0. For the
PIC18F13K22/LF13K22 addresses 0000h through
07FFh, define the “Boot Block” region. All of these
blocks define code protection boundaries within the
program Flash space. The size of the Boot Block in the
PIC18F14K22/LF14K22 devices can be configured as
2K, or 4 Kbyte (see Figure 3-1). The size of the Boot
Block in the PIC18F13K22/LF13K22 devices can be
configured as 1K, or 2 Kbytes (see Figure 3-1). This is
done through the BBSIZ bit in the Configuration regis-
ter, CONFIG4L. It is important to note that increasing
the size of the Boot Block decreases the size of the
Block 0.
TABLE 3-1: IMPLEMENTATION OF
PROGRAM FLASH
FIGURE 3-1: MEMORY MAP AND THE PROGRAM FLASH SPACE FOR PIC18F14K22/LF14K22
DEVICES
(1)
Device Program Flash Size (Bytes)
PIC18F13K22/
LF13K22
000000h-001FFFh (8K)
PIC18F14K22/
LF14K22
000000h-003FFFh (16K)
000000h
200000h
3FFFFFh
01FFFFh
Note 1: Sizes of memory areas are not to scale.
2: Boot Block size is determined by the BBSIZ bit in the CONFIG4L register.
Program Flash
Unimplemented
Read as ‘0’
Configuration
and ID
Space
MEMORY SIZE/DEVICE
Address
Range
16 Kbytes
(PIC18F14K22)
BBSIZ = 1 BBSIZ = 0
Boot Block
(2)
Boot Block
(2)
000000h
0007FFh
Block 0
000800h
000FFFh
Block 0
001000h
001FFFh
Block 1 Block 1
002000h
003FFFh
Unimplemented
Read ‘0’s
Unimplemented
Read ‘0’s
004000h
01FFFFh
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