参数资料
型号: PIC24FJ16GA004-E/PT
厂商: Microchip Technology
文件页数: 42/52页
文件大小: 0K
描述: IC PIC MCU FLASH 16K 44-TQFP
特色产品: PIC24FJ/33FJ MCUs & dsPIC? DSCs
标准包装: 160
系列: PIC® 24F
核心处理器: PIC
芯体尺寸: 16-位
速度: 32MHz
连通性: I²C,PMP,SPI,UART/USART
外围设备: 欠压检测/复位,LVD,POR,PWM,WDT
输入/输出数: 35
程序存储器容量: 16KB(5.5K x 24)
程序存储器类型: 闪存
RAM 容量: 4K x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 3.6 V
数据转换器: A/D 13x10b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 44-TQFP
包装: 托盘
产品目录页面: 647 (CN2011-ZH PDF)
配用: 876-1004-ND - PIC24 BREAKOUT BOARD
DM240011-ND - KIT STARTER MPLAB FOR PIC24F MCU
AC162088-ND - HEADER MPLAB ICD2 24FJ64GA004 28
AC164335-ND - MODULE SKT FOR 10X10 PM3 44TQFP
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
2008 Microchip Technology Inc.
DS39768D-page 47
PIC24FJXXXGA0XX
6.2
Checksum Computation
Checksums for the PIC24FJXXXGA0XX family are
16 bits in size. The checksum is calculated by summing
the following:
Contents of code memory locations
Contents of Configuration registers
Table 6-4 describes how to calculate the checksum for
each device. All memory locations are summed, one
byte at a time, using only their native data size. More
specifically, Configuration registers are summed by
adding the lower two bytes of these locations (the
upper byte is ignored), while code memory is summed
by adding all three bytes of code memory.
TABLE 6-4:
CHECKSUM COMPUTATION
Device
Read Code
Protection
Checksum Computation
Erased
Checksum
Value
Checksum with
0xAAAAAA at 0x0 and Last
Code Address
PIC24FJ16GA002
Disabled
CFGB + SUM(0:02BFB)
0xBB5A
0xB95C
Enabled
0
0x0000
PIC24FJ16GA004
Disabled
CFGB + SUM(0:02BFB)
0xBB5A
0xB95C
Enabled
0
0x0000
PIC24FJ32GA002
Disabled
CFGB + SUM(0:057FB)
0x795A
0x775C
Enabled
0
0x0000
PIC24FJ32GA004
Disabled
CFGB + SUM(0:057FB)
0x795A
0x775C
Enabled
0
0x0000
PIC24FJ48GA002
Disabled
CFGB + SUM(0:083FB)
0x375A
0x355C
Enabled
0
0x0000
PIC24FJ48GA004
Disabled
CFGB + SUM(0:083FB)
0x375A
0x355C
Enabled
0
0x0000
PIC24FJ64GA002
Disabled
CFGB + SUM(0:0ABFB)
0xFB5A
0xF95C
Enabled
0
0x0000
PIC24FJ64GA004
Disabled
CFGB + SUM(0:0ABFB)
0xFB5A
0xF95C
Enabled
0
0x0000
PIC24FJ64GA006
Disabled
CFGB + SUM(0:0ABFB)
0xFACC
0xF8CE
Enabled
0
0x0000
PIC24FJ64GA008
Disabled
CFGB + SUM(0:0ABFB)
0xFACC
0xF8CE
Enabled
0
0x0000
PIC24FJ64GA010
Disabled
CFGB + SUM(0:0ABFB)
0xFACC
0xF8CE
Enabled
0
0x0000
PIC24FJ96GA006
Disabled
CFGB + SUM(0:0FFFB)
0x7CCC
0x7ACE
Enabled
0
0x0000
PIC24FJ96GA008
Disabled
CFGB + SUM(0:0FFFB)
0x7CCC
0x7ACE
Enabled
0
0x0000
PIC24FJ96GA010
Disabled
CFGB + SUM(0:0FFFB)
0x7CCC
0x7ACE
Enabled
0
0x0000
Legend:
Item
Description
SUM[a:b]
=
Byte sum of locations, a to b inclusive (all 3 bytes of code memory)
CFGB
=
Configuration Block (masked),
64/80/100-Pin Devices = Byte sum of (CW1 & 0x7DDF + CW2 & 0x87E3)
28/44-Pin Devices = Byte sum of (CW1 & 0x7FDF + CW2 & 0xFFF7)
Note:
CW1 address is last location of implemented program memory; CW2 is (last location – 2).
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