參數(shù)資料
型號(hào): ATMEGA325-16AUR
廠商: Atmel
文件頁(yè)數(shù): 15/85頁(yè)
文件大小: 0K
描述: MCU AVR 32K FLASH 16MHZ 64TQFP
產(chǎn)品培訓(xùn)模塊: megaAVR Introduction
標(biāo)準(zhǔn)包裝: 1,000
系列: AVR® ATmega
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: SPI,UART/USART,USI
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 54
程序存儲(chǔ)器容量: 32KB(16K x 16)
程序存儲(chǔ)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 ~ 85°C
封裝/外殼: 64-TQFP
包裝: 帶卷 (TR)
22
2570N–AVR–05/11
ATmega325/3250/645/6450
8.5
Register Description
8.5.1
EEARH and EEARL – The EEPROM Address Register
Bits 15:11 – Reserved Bits
These bits are reserved bits in the Atmel ATmega325/3250/645/6450 and will always read as
zero.
Bits 10:0 – EEAR10:0: EEPROM Address
The EEPROM Address Registers – EEARH and EEARL specify the EEPROM address in the
1/2K bytes EEPROM space. The EEPROM data bytes are addressed linearly between 0 and
1023/2047. The initial value of EEAR is undefined. A proper value must be written before the
EEPROM may be accessed.
Note:
EEAR10 is only valid for ATmega645 and ATmega6450.
8.5.2
EEDR – The EEPROM Data Register
Bits 7:0 – EEDR7..0: EEPROM Data
For the EEPROM write operation, the EEDR Register contains the data to be written to the
EEPROM in the address given by the EEAR Register. For the EEPROM read operation, the
EEDR contains the data read out from the EEPROM at the address given by EEAR.
8.5.3
EECR – The EEPROM Control Register
Bits 7:4 – Reserved Bits
These bits are reserved bits in the Atmel ATmega325/3250/645/6450 and will always read as
zero.
Bit 3 – EERIE: EEPROM Ready Interrupt Enable
Writing EERIE to one enables the EEPROM Ready Interrupt if the I bit in SREG is set. Writing
EERIE to zero disables the interrupt. The EEPROM Ready interrupt generates a constant inter-
rupt when EEWE is cleared.
Bit
1514
13121110
9
8
EEAR10
EEAR9
EEAR8
EEARH
EEAR7
EEAR6
EEAR5
EEAR4
EEAR3
EEAR2
EEAR1
EEAR0
EEARL
76
54
321
0
Read/Write
R
R/W
Initial Value
0
X
XXX
XX
Bit
7
6
543
21
0
MSB
LSB
EEDR
Read/Write
R/W
Initial Value
0
Bit
765432
10
––––
EERIE
EEMWE
EEWE
EERE
EECR
Read/Write
R
R/W
Initial Value
000000
X
0
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ATMEGA325-20AU 制造商:Atmel Corporation 功能描述:
ATMEGA325A 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash