收藏本站
220
XMEGA A [MANUAL]
8077I–AVR–11/2012
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to zero
when this register is written.
Bit 2
– ACKACT: Acknowledge Action
This bit defines the slave's acknowledge behavior after an address or data byte is received from the master. The
acknowledge action is executed when a command is written to the CMD bits. If the SMEN bit in the CTRLA register is
set, the acknowledge action is performed when the DATA register is read.
Table 19-7 on page 220 lists the acknowledge actions.
Table 19-7. TWI slave acknowledge actions.
Bit 1:0
– CMD[1:0]: Command
Writing these bits trigger the slave operation as defined by Table 19-8 on page 220. The CMD bits are strobe bits and
always read as zero. The operation is dependent on the slave interrupt flags, DIF and APIF. The acknowledge action is
only executed when the slave receives data bytes or address byte from the master
Table 19-8. TWI slave command.
Writing the CMD bits will automatically clear the slave interrupt flags and CLKHOLD, and release the SCL line. The
ACKACT bit and CMD bits can be written at the same time, and then the acknowledge action will be updated before the
command is triggered.
ACKACT
Action
0
Send ACK
1
Send NACK
CMD[1:0]
Group
Configuration
DIR
Operation
00
NOACT
X
No action
01
X
Reserved
10
COMPLETE
Used to complete transaction
0
Execute acknowledge action succeeded by waiting for any START (S/Sr) condition
1
Wait for any START (S/Sr) condition
11
RESPONSE
Used in response to an address byte (APIF is set)
0
Execute acknowledge action succeeded by reception of next byte
1
Execute acknowledge action succeeded by DIF being set
Used in response to a data byte (DIF is set
)
0
Execute acknowledge action succeeded by waiting for the next byte
1
No operation
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PIC18F4321T-I/ML IC PIC MCU FLASH 4KX16 44QFN
PIC18F4221T-I/ML IC PIC MCU FLASH 2KX16 44QFN
PIC18F2321T-I/ML IC PIC MCU FLASH 4KX16 28QFN
PIC18F2221T-I/SO IC PIC MCU FLASH 2KX16 28SOIC
PIC16LF1939-I/MV IC MCU 8BIT 28KB FLASH 40-UQFN
PIC24F16KL402-I/SP IC MCU 16BIT 16KB FLASH 28-SPDIP
PIC18F24J11-I/SS IC PIC MCU FLASH 16K 2V 28-SSOP
PIC24F16KA101-I/SO IC PIC MCU FLASH 16K 20-SOIC
相关代理商/技术参数
PIC18F4450T-I/PT 功能描述:8位微控制器 -MCU 16KB FL 768 RAM 34 I/O FS-USB 2.0 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455-BL 制造商:POWERLITE SYSTEMS 功能描述:PIC18F445 W/ BOOTLOADER FOR FLASHLAB 制造商:POWERLITE SYSTEMS 功能描述:PIC18F445 W/ BOOTLOADER, FOR FLASHLAB 制造商:POWERLITE SYSTEMS 功能描述:PIC18F445 W/ BOOTLOADER, FOR FLASHLAB; Silicon Manufacturer:Powerlite Systems; Core Architecture:PIC; Kit Contents:Board; Features:Bootloader Programming, RS232 Connector for Boot-Loading and Serial Comms ;RoHS Compliant: Yes
PIC18F4455-I/ML 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455-I/P 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455-I/PT 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455T-I/ML 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455T-I/PT 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4458-I/ML 功能描述:8位微控制器 -MCU 24KB Flash 2KB RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT