參數(shù)資料
型號： PIC18F46J50T-I/PT
廠商： Microchip Technology
文件頁數(shù)： 141/164頁
文件大?。?/td> 0K
描述： IC PIC MCU FLASH 64KB 44-TQFP
產(chǎn)品培訓模塊： PIC18 J Series MCU Overview
PIC18F MPLAB® Starter Kit
標準包裝： 1,200
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
外圍設備： 欠壓檢測/復位，DMA，POR，PWM，WDT
輸入/輸出數(shù)： 34
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)轉換器： A/D 13x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-TQFP
包裝： 帶卷 (TR)
配用： AC164330-ND - MODULE SKT FOR 44TQFP 18F45J10
PIC18F46J50 FAMILY
DS39931D-page 78
2011 Microchip Technology Inc.
6.1.1
HARD MEMORY VECTORS
All PIC18 devices have a total of three hard-coded
return vectors in their program memory space. The
Reset vector address is the default value to which the
Program Counter returns on all device Resets; it is
located at 0000h.
PIC18 devices also have two interrupt vector
addresses for handling high-priority and low-priority
interrupts. The high-priority interrupt vector is located at
0008h and the low-priority interrupt vector at 0018h.
Figure 6-2 provides their locations in relation to the
program memory map.
FIGURE 6-2:
HARD VECTOR AND
CONFIGURATION WORD
LOCATIONS FOR
PIC18F46J50 FAMILY
DEVICES
6.1.2
FLASH CONFIGURATION WORDS
Because PIC18F46J50 family devices do not have
persistent configuration memory, the top four words of
on-chip program memory are reserved for configuration
information. On Reset, the configuration information is
copied into the Configuration registers.
The Configuration Words are stored in their program
memory location in numerical order, starting with the
lower byte of CONFIG1 at the lowest address and
ending with the upper byte of CONFIG4.
Table 6-1 provides the actual addresses of the Flash
Configuration Word for devices in the PIC18F46J50
family. Figure 6-2 displays their location in the memory
map with other memory vectors.
Additional details on the device Configuration Words
TABLE 6-1:
FLASH CONFIGURATION
WORD FOR PIC18F46J50
FAMILY DEVICES
Reset Vector
Low-Priority Interrupt Vector
0000h
0018h
On-Chip
Program Memory
High-Priority Interrupt Vector
0008h
1FFFFFh
(Top of Memory)
(Top of Memory-7)
Flash Configuration Words
Read as ‘0’
Legend:
(Top of Memory) represents upper boundary
of on-chip program memory space (see
Figure 6-1 for device-specific values).
Shaded area represents unimplemented
memory. Areas are not shown to scale.
Device
Program
Memory
(Kbytes)
Configuration
Word
Addresses
PIC18F24J50
16
3FF8h to 3FFFh
PIC18F44J50
PIC18F25J50
32
7FF8h to 7FFFh
PIC18F45J50
PIC18F26J50
64
FFF8h to FFFFh
PIC18F46J50
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