參數(shù)資料
型號: ATMEGA328P-15AZ
廠商: Atmel
文件頁數(shù): 9/83頁
文件大?。?/td> 0K
描述: MCU AVR 32K FLASH 15MHZ 32-TQFP
產(chǎn)品培訓(xùn)模塊: megaAVR Introduction
標(biāo)準(zhǔn)包裝: 1
系列: AVR® ATmega
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 23
程序存儲器容量: 32KB(16K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 1K x 8
RAM 容量: 2K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 32-TQFP
包裝: 剪切帶 (CT)
其它名稱: ATMEGA328P-15AZCT
17
7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
Figure 7-1.
Program Memory Map ATmega328P
7.3
SRAM Data Memory
Figure 7-2 shows how the ATmega328P SRAM Memory is organized.
The ATmega328P is a complex microcontroller with more peripheral units than can be sup-
ported within the 64 locations reserved in the Opcode for the IN and OUT instructions. For the
Extended I/O space from 0x60 - 0xFF in SRAM, only the ST/STS/STD and LD/LDS/LDD instruc-
tions can be used.
The lower 2303 data memory locations address both the Register File, the I/O memory,
Extended I/O memory, and the internal data SRAM. The first 32 locations address the Register
File, the next 64 location the standard I/O memory, then 160 locations of Extended I/O memory,
and the next 2048 locations address the internal data SRAM.
The five different addressing modes for the data memory cover: Direct, Indirect with Displace-
ment, Indirect, Indirect with Pre-decrement, and Indirect with Post-increment. In the Register
File, registers R26 to R31 feature the indirect addressing pointer registers.
The direct addressing reaches the entire data space.
The Indirect with Displacement mode reaches 63 address locations from the base address given
by the Y- or Z-register.
When using register indirect addressing modes with automatic pre-decrement and post-incre-
ment, the address registers X, Y, and Z are decremented or incremented.
The 32 general purpose working registers, 64 I/O Registers, 160 Extended I/O Registers, and
the 2048 bytes of internal data SRAM in the ATmega328P are all accessible through all these
addressing modes. The Register File is described in “General Purpose Register File” on page
0x0000
0x3FFF
Program Memory
Application Flash Section
Boot Flash Section
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