參數(shù)資料
型號(hào)： AT43USB355E-AU
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
中文描述： 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 1.40 MM, GREEN, PLASTIC, MS-026ACB, LQFP-64
文件頁(yè)數(shù)： 58/115頁(yè)
文件大?。?/td> 610K
代理商： AT43USB355E-AU
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58
AT43USB355
2603G–USB–04/06
SPI Status Register – SPSR
Bit 7
–
SPIF: SPI Interrupt Flag
When a serial transfer is complete, the SPIF bit is set (one) and an interrupt is generated if
SPIE in SPCR is set (one) and global interrupts are enabled. If SS is an input and is driven low
when the SPI is in master mode, this will also set the SPIF flag. SPIF is cleared by the hard-
ware when executing the corresponding interrupt handling vector. Alternatively, the SPIF bit is
cleared by first reading the SPI status register when SPIF is set (one), then accessing the SPI
Data Register (SPDR).
Bit 6
–
WCOL: Write Collision Flag
The WCOL bit is set if the SPI data register (SPDR) is written during a data transfer. The
WCOL bit (and the SPIF bit) are cleared (zero) by first reading the SPI Status Register when
WCOL is set (one), and then accessing the SPI Data Register.
Bit 5..0
–
Res: Reserved Bits
These bits are reserved bits in the AT43USB355 and will always read as zero.
SPI Data Register – SPDR
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
7
6
5
4
3
2
1
0
$0E ($2E)
SPIF
WCOL
–
–
–
–
–
–
SPSR
Read/Write
R
R
R
R
R
R
R
R
Initial Value
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
$0F ($2F)
MSB
–
–
–
–
–
–
LSB
SPDR
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
x
x
x
x
x
x
x
x
Undefined
相關(guān)PDF資料
PDF描述
AT43USB355M-AC Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB355M-AU Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB380 On-The-Go Upgrade of the AT43USB370 USB 2.0 Full-Speed Host/Function Processor
AT45BR3214B 32-MEGABIT DATAFLASH + 4-MEGABIT SRAM STACK MEMORY
AT45BR3214B-C1 32-MEGABIT DATAFLASH + 4-MEGABIT SRAM STACK MEMORY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT43USB355M-AC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB355M-AU 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB370 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:USB 2.0 Full-Speed Host/Function Processor
AT43USB370E-AC 功能描述:USB 接口集成電路 USB HOST DEVICE CONTROL - COM TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
AT43USB380 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:On-The-Go Upgrade of the AT43USB370 USB 2.0 Full-Speed Host/Function Processor
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