参数资料
型号: ATTINY15L-1SU
厂商: Atmel
文件页数: 31/85页
文件大小: 0K
描述: IC MCU AVR 1K FLASH 1.6MHZ 8SOIC
标准包装: 95
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 1.6MHz
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 6
程序存储器容量: 1KB(512 x 16)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.209",5.30mm 宽)
包装: 管件
37
ATtiny15L
1187H–AVR–09/07
The EEPROM Control Register
– EECR
Bit 7..4 – RES: Reserved Bits
These bits are reserved bits in the ATtiny15L and will always read as zero.
Bit 3 – EERIE: EEPROM Ready Interrupt Enable
When the I-bits in SREG and EERIE are set (one), the EEPROM Ready Interrupt is
enabled. When cleared (zero), the interrupt is disabled. The EEPROM Ready Interrupt
generates a constant interrupt when EEWE is cleared (zero).
Bit 2 – EEMWE: EEPROM Master Write Enable
The EEMWE bit determines whether setting EEWE to one causes the EEPROM to be
written. When EEMWE is set (one), setting EEWE will write data to the EEPROM at the
selected address. If EEMWE is zero, setting EEWE will have no effect. When EEMWE
has been set (one) by software, hardware clears the bit to zero after four clock cycles.
See the description of the EEWE bit for an EEPROM write procedure.
Bit 1 – EEWE: EEPROM Write Enable
The EEPROM Write Enable Signal – EEWE – is the write strobe to the EEPROM. When
address and data are correctly set up, the EEWE bit must be set to write the value in to
the EEPROM. The EEMWE bit must be set when the logical “1” is written to EEWE, oth-
erwise no EEPROM write takes place. The following procedure should be followed
when writing the EEPROM (the order of steps 2 and 3 is not essential):
1.
Wait until EEWE becomes zero.
2.
Write new EEPROM address to EEAR (optional).
3.
Write new EEPROM data to EEDR (optional).
4.
Write a logical “1” to the EEMWE bit in EECR.
5.
Within four clock cycles after setting EEMWE, write a logical “1” to EEWE.
Caution: An interrupt between step 4 and step 5 will make the write cycle fail, since the
EEPROM Master Write Enable will time-out. If an interrupt routine accessing the
EEPROM is interrupting another EEPROM access, the EEAR or EEDR Register will be
modified, causing the interrupted EEPROM access to fail. It is recommended to have
the Global Interrupt Flag cleared during the four last steps to avoid these problems.
When the write access time (typically 5.1 ms if the internal RC Oscillator is calibrated to
1.6 MHz) has elapsed, the EEWE bit is cleared (zero) by hardware. The user software
can poll this bit and wait for a zero before writing the next byte. When EEWE has been
set, the CPU is halted for two cycles before the next instruction is executed.
Bit 0 – EERE: EEPROM Read Enable
The EEPROM Read Enable Signal EERE is the read strobe to the EEPROM. When the
correct address is set up in the EEAR Register, the EERE bit must be set. When the
EERE bit is cleared (zero) by hardware, requested data is found in the EEDR Register.
The EEPROM read access takes one instruction and there is no need to poll the EERE
bit. When EERE has been set, the CPU is halted for four cycles before the next instruc-
tion is executed.
Bit
7
65
43
2
1
0
$1C
EERIE
EEMWE
EEWE
EERE
EECR
Read/Write
R
R/W
Initial value
0
X
0
相关PDF资料
PDF描述
ATTINY2313-20SUR IC MCU AVR 2K FLASH 20SOIC
ATTINY2313A-MMHR IC MCU AVR 2K FLASH 3X3 20QFN
ATTINY26-16MQR IC MCU AVR 2K 16MHZ IND 32QFN
ATTINY26L-8PU IC MCU AVR 2K 5V 8MHZ 20-DIP
ATTINY28V-1AUR IC MCU AVR 2K 1.2MHZ 1.8V 32TQFP
相关代理商/技术参数
参数描述
ATTINY15L-1SU SL383 制造商:Atmel Corporation 功能描述:AVR, 1K FLASH, 64B EE, ADC, 8
ATTINY15POD 功能描述:仿真器/模拟器 AVR ICE10 POD REPLACEMENT RoHS:否 制造商:Blackhawk 产品:System Trace Emulators 工具用于评估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2
ATTINY1614-SSFR 功能描述:IC MCU 8BIT 16KB FLASH 14SOIC 制造商:microchip technology 系列:tinyAVR? 1 包装:剪切带(CT) 零件状态:在售 核心处理器:AVR 核心尺寸:8-位 速度:20MHz 连接性:I2C,IrDA,LIN,SPI,UART/USART 外设:欠压检测/复位,POR,PWM,WDT I/O 数:12 程序存储容量:16KB(16K x 8) 程序存储器类型:闪存 EEPROM 容量:256 x 8 RAM 容量:2K x 8 电压 - 电源(Vcc/Vdd):1.8 V ~ 5.5 V 数据转换器:A/D 14x10b,D/A 3x8b 振荡器类型:内部 工作温度:-40°C ~ 125°C(TA) 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商器件封装:14-SOIC 标准包装:1
ATTINY1614-SSNR 功能描述:IC MCU 8BIT 16KB FLASH 14SOIC 制造商:microchip technology 系列:tinyAVR? 1 包装:剪切带(CT) 零件状态:在售 核心处理器:AVR 核心尺寸:8-位 速度:20MHz 连接性:I2C,IrDA,LIN,SPI,UART/USART 外设:欠压检测/复位,POR,PWM,WDT I/O 数:12 程序存储容量:16KB(16K x 8) 程序存储器类型:闪存 EEPROM 容量:256 x 8 RAM 容量:2K x 8 电压 - 电源(Vcc/Vdd):1.8 V ~ 5.5 V 数据转换器:A/D 14x10b,D/A 3x8b 振荡器类型:内部 工作温度:-40°C ~ 105°C(TA) 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商器件封装:14-SOIC 标准包装:1
ATTINY1616-MFR 功能描述:IC MCU 8BIT 16KB FLASH 20QFN 制造商:microchip technology 系列:tinyAVR? 1 包装:剪切带(CT) 零件状态:在售 核心处理器:AVR 核心尺寸:8-位 速度:20MHz 连接性:I2C,IrDA,LIN,SPI,UART/USART 外设:欠压检测/复位,POR,PWM,WDT I/O 数:18 程序存储容量:16KB(16K x 8) 程序存储器类型:闪存 EEPROM 容量:256 x 8 RAM 容量:2K x 8 电压 - 电源(Vcc/Vdd):1.8 V ~ 5.5 V 数据转换器:A/D 20x10b,D/A 3x8b 振荡器类型:内部 工作温度:-40°C ~ 125°C(TA) 封装/外壳:20-VFQFN 裸露焊盘 供应商器件封装:20-VQFN(3x3) 标准包装:1