128
8008H–AVR–04/11
ATtiny48/88
Bit 0 – SPI2X: Double SPI Speed Bit
When this bit is written logic one the SPI speed (SCK Frequency) will be doubled when the SPI
is in Master mode (see Table 14-5). This means that the minimum SCK period will be two CPU
clock periods. When the SPI is configured as Slave, the SPI is only guaranteed to work at f
osc/4
or lower.
The SPI interface on the ATtiny48/88 is also used for program memory and EEPROM down-
loading or uploading. See page 200 for serial programming and verification.
14.5.3
SPDR – SPI Data Register
The SPI Data Register is a read/write register used for data transfer between the Register File
and the SPI Shift Register. Writing to the register initiates data transmission. Reading the regis-
ter causes the Shift Register Receive buffer to be read.
Bit
765
43210
MSB
LSB
SPDR
Read/Write
R/W
Initial Value
XXXXXXX
X
Undefined
相关PDF资料
PIC18F26J53-I/ML IC PIC MCU 64KB FLASH 28QFN
PIC18F46K80-I/ML MCU PIC 64KB FLASH 44QFN
PIC32MX130F064D-I/TL IC MCU 32BIT 64KB FLASH 44-VTLA
PIC32MX130F064D-I/ML IC MCU 32BIT 64KB FLASH 44-QFN
PIC18LF46K80-I/ML MCU PIC ECAN 64KB FLASH 44QFN
AT89S51-24JI IC 8051 MCU 4K FLASH 44PLCC
AT89S51-24JC IC 8051 MCU 4K FLASH 44PLCC
AT89S51-24AI IC 8051 MCU 4K FLASH 44TQFP
相关代理商/技术参数
PIC16F88-I/ML 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 16F88 QFN-28
PIC16F88-I/P 功能描述:8位微控制器 -MCU 7KB 368 RAM 16 I/O 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
PIC16F88-I/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 16F88 DIP18
PIC16F88-I/SL 制造商:Microchip Technology Inc 功能描述:
PIC16F88-I/SO 功能描述:8位微控制器 -MCU 7KB 368 RAM 16 I/O 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
PIC16F88-I/SO 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 16F88 SOIC18
PIC16F88-I/SOG 功能描述:8位微控制器 -MCU 7KB 368 RAM 16 I/O Lead Free Package 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
PIC16F88-I/SS 功能描述:8位微控制器 -MCU 7KB 368 RAM 16 I/O 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