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参数资料
| 型号： | R8A66171SP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PDSO24 |
| 封装： | SOP-24 |
| 文件页数： | 2/24页 |
| 文件大小： | 678K |
| 代理商： | R8A66171SP |
10
XMEGA E5 [DATASHEET]
8153G–AVR–10/2013
8.
Memories
8.1
Features
Flash program memory
One linear address space
In-system programmable
Self-programming and boot loader support
Application section for application code
Application table section for application code or data storage
Boot section for application code or bootloader code
Separate read/write protection lock bits for all sections
Built in fast CRC check of a selectable flash program memory section
Data memory
One linear address space
Single-cycle access from CPU
SRAM
EEPROM
Byte and page accessible
Memory mapped for direct load and store
I/O memory
Configuration and status registers for all peripherals and modules
4 bit-accessible general purpose registers for global variables or flags
Bus arbitration
Deterministic handling of priority between CPU, EDMA controller, and other bus masters
Separate buses for SRAM, EEPROM and I/O memory
Simultaneous bus access for CPU and EDMA controller
Production signature row memory for factory programmed data
ID for each microcontroller device type
Serial number for each device
Calibration bytes for factory calibrated peripherals
User signature row
One flash page in size
Can be read and written from software
Content is kept after chip erase
8.2
Overview
The Atmel AVR architecture has two main memory spaces, the program memory and the data memory. Executable code
can reside only in the program memory, while data can be stored in the program memory and the data memory. The data
memory includes the internal SRAM, and EEPROM for nonvolatile data storage. All memory spaces are linear and
require no memory bank switching. Nonvolatile memory (NVM) spaces can be locked for further write and read/write
operations. This prevents unrestricted access to the application software.
A separate memory section contains the fuse bytes. These are used for configuring important system functions, and can
only be written by an external programmer.
The available memory size configurations are shown in “Ordering Information” on page 2”. In addition, each device has a
Flash memory signature row for calibration data, device identification, serial number etc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R8A66173SP | 制造商:Renesas Electronics Corporation 功能描述: |
| R8A66174SP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:PARALLEL-IN SERIAL-OUT DATA BUFFER WITH FIFO |
| R8A66593FP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:ASSP (USB2.0 Peripheral Controller) |
| R8A66597BG | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:ASSP (USB2.0 2 Port Host/1 Port Peripheral Controller) |
| R8A66597BG#DF1S | 制造商:Renesas Electronics Corporation 功能描述:USB 2, 2-PORT HOST OR 1-PORT PERIPH CTRL - Tape and Reel 制造商:Renesas Electronics Corporation 功能描述:IC CONTROLLER USM 81LFBGA |
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