参数资料
型号: DSPIC33FJ256MC510T-I/PT
厂商: Microchip Technology
文件页数: 132/136页
文件大小: 0K
描述: IC DSPIC MCU/DSP 256K 100TQFP
产品培训模块: Asynchronous Stimulus
标准包装: 1,200
系列: dsPIC™ 33F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 40 MIP
连通性: CAN,I²C,IrDA,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,电机控制 PWM,QEI,POR,PWM,WDT
输入/输出数: 85
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 24x10b/12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 100-TQFP
包装: 带卷 (TR)
配用: MA330013-ND - MODULE PLUG-IN DSPIC33 100TQFP
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
95
4235K–8051–05/08
AT89C51RD2/ED2
Table 24-2.
Program Lock Bits
Note:
U: Unprogrammed or "one" level.
P: Programmed or "zero" level.
X: Do not care
WARNING: Security level 2 and 3 should only be programmed after Flash and code verification.
These security bits protect the code access through the parallel programming interface. They
are set by default to level 4. The code access through the ISP is still possible and is controlled
by the "software security bits" which are stored in the extra Flash memory accessed by the ISP
firmware.
To load a new application with the parallel programmer, a chip erase must first be done. This will
set the HSB in its inactive state and will erase the Flash memory. The part reference can always
be read using Flash parallel programming modes.
24.3.3
Default Values
The default value of the HSB provides parts ready to be programmed with ISP:
BLJB: Programmed force ISP operation.
X2: Unprogrammed to force X1 mode (Standard Mode).
XRAM: Unprogrammed to valid XRAM
LB2-0: Security level four to protect the code from a parallel access with maximum security.
24.3.4
Software Registers
Several registers are used in factory and by parallel programmers. These values are used by
Atmel ISP.
These registers are in the "Extra Flash Memory" part of the Flash memory. This block is also
called "XAF" or eXtra Array Flash. They are accessed in the following ways:
Commands issued by the parallel memory programmer.
Commands issued by the ISP software.
Calls of API issued by the application software.
Several software registers are described in Table 24-3.
Table 24-3.
Default Values
Program Lock Bits
Protection Description
Security
Level
LB0
LB1
LB2
1
U
No program lock features enabled.
2
P
U
MOVC instruction executed from external program memory is disabled from
fetching code bytes from internal memory, EA is sampled and latched on reset,
and further parallel programming of the on chip code memory is disabled.
ISP and software programming with API are still allowed.
3
X
P
U
Same as 2, also verify code memory through parallel programming interface is
disabled.
4
X
P
Same as 3, also external execution is disabled (Default).
Mnemonic
Definition
Default value
Description
SBV
Software Boot Vector
FCh
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