参数资料
型号: TSPC603RVGSB/Q14LC
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 300 MHz, RISC PROCESSOR, CBGA255
封装: 21 X 21 MM, 3.84 MM HEIGHT, 1.27 MM PITCH, CERAMIC, CI-CGA-255
文件页数: 72/132页
文件大小: 10886K
代理商: TSPC603RVGSB/Q14LC
277
8151H–AVR–02/11
ATmega128A
25. Boot Loader Support – Read-While-Write Self-Programming
25.1
Features
Read-While-Write Self-Programming
Flexible Boot Memory Size
High Security (Separate Boot Lock Bits for a Flexible Protection)
Separate Fuse to Select Reset Vector
Optimized Page(1) Size
Code Efficient Algorithm
Efficient Read-Modify-Write Support
Note:
1. A page is a section in the flash consisting of several bytes (see Table 26-10 on page 296) used
during programming. The page organization does not affect normal operation.
25.2
Overview
The Boot Loader Support provides a real Read-While-Write Self-Programming mechanism for
downloading and uploading program code by the MCU itself. This feature allows flexible applica-
tion software updates controlled by the MCU using a Flash-resident Boot Loader program. The
Boot Loader program can use any available data interface and associated protocol to read code
and write (program) that code into the Flash memory, or read the code from the program mem-
ory. The program code within the Boot Loader section has the capability to write into the entire
Flash, including the Boot Loader memory. The Boot Loader can thus even modify itself, and it
can also erase itself from the code if the feature is not needed anymore. The size of the Boot
Loader memory is configurable with fuses and the Boot Loader has two separate sets of Boot
Lock bits which can be set independently. This gives the user a unique flexibility to select differ-
ent levels of protection.
25.3
Application and Boot Loader Flash Sections
The Flash memory is organized in two main sections, the Application section and the Boot
Loader section (see Figure 25-2). The size of the different sections is configured by the
BOOTSZ fuses as shown in
相关PDF资料
PDF描述
TSXPC603RVGB/Q14LC 32-BIT, 300 MHz, RISC PROCESSOR, CBGA255
TS80C31X2-LJER 8-BIT, 30 MHz, MICROCONTROLLER, PQFP44
TS80C32X2-ELCR 8-BIT, MICROCONTROLLER, PQFP44
TS80C31X2-VJBB 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44
TSC80C31-16KAD 8-BIT, 16 MHz, MICROCONTROLLER, PDIP40
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