參數(shù)資料
型號: PIC18F26J50-I/SP
廠商: Microchip Technology
文件頁數(shù): 28/32頁
文件大小: 0K
描述: IC PIC MCU FLASH 64K 2V 28-DIP
產(chǎn)品培訓(xùn)模塊: XLP Deep Sleep Mode
PIC18 J Series MCU Overview
8-bit PIC® Microcontroller Portfolio
標準包裝: 15
系列: PIC® XLP™ 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 48MHz
連通性: I²C,SPI,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 16
程序存儲器容量: 64KB(32K x 16)
程序存儲器類型: 閃存
RAM 容量: 3.8K x 8
電壓 - 電源 (Vcc/Vdd): 2.15 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 10x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-DIP(0.300",7.62mm)
包裝: 管件
產(chǎn)品目錄頁面: 657 (CN2011-ZH PDF)
配用: AC164322-ND - MODULE SOCKET MPLAB PM3 28/44QFN
2009 Microchip Technology Inc.
DS39687E-page 5
PIC18F2XJXX/4XJXX FAMILY
The Configuration Words for these devices are located
at addresses, 300000h through 300007h. These are
implemented as three pairs of volatile memory regis-
ters. Each register is automatically loaded from a copy
stored at the end of program memory. For this reason,
the last four words (or eight bytes) of the code space
(also called the Flash Configuration Words) should be
written with configuration data and not executable
code. The addresses of the Flash Configuration Words
are also listed in Table 2-2. Refer to section Section 5.0
“Configuration Word” for more information.
Locations, 3FFFFEh and 3FFFFFh, are reserved for
the device ID bits. These bits may be used by the
programmer to identify what device type is being pro-
grammed and are described in Section 5.1 “Device ID
Word”. These device ID bits read out normally, even
after code protection.
2.2.1
MEMORY ADDRESS POINTER
Memory in the device address space (000000h to
3FFFFFh) is addressed via the Table Pointer register,
which in turn, is comprised of three 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.
TBLPTRU
TBLPTRH
TBLPTRL
Addr[21:16]
Addr[15:8]
Addr[7:0]
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