- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3820 > C8051F220R (Silicon Laboratories Inc)IC 8051 MCU 8K FLASH 48TQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | C8051F220R |
| 廠商： | Silicon Laboratories Inc |
| 文件頁(yè)數(shù)： | 16/146頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC 8051 MCU 8K FLASH 48TQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | C8051F2xx |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 25MHz |
| 連通性： | SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，POR，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲(chǔ)器容量： | 8KB（8K x 8） |
| 程序存儲(chǔ)器類型： | 閃存 |
| RAM 容量： | 256 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 32x8b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 48-TQFP |
| 包裝： | 剪切帶 (CT) |
| 其它名稱： | 336-1008-1 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)
C8051F2xx
112
Rev. 1.6
15.2. Operation
Only a SPI master device can initiate a data transfer. The SPI is placed in master mode by setting the
Master Enable flag (MSTEN, SPI0CN.1). Writing a byte of data to the SPI data register (SPI0DAT) when in
Master Mode starts a data transfer. The SPI master immediately shifts out the data serially on the MOSI
line while providing the serial clock on SCK. The SPIF (SPI0CN.7) flag is set to logic 1 at the end of the
transfer. If interrupts are enabled, an interrupt request is generated when the SPIF flag is set. The SPI
master can be configured to shift in/out from one to eight bits in a transfer operation in order to accommo-
date slave devices with different word lengths.
The SPIFRS bits in the SPI Configuration Register
(SPI0CFG.[2:0]) are used to select the number of bits to shift in/out in a transfer operation.
While the SPI master transfers data to a slave on the MOSI line, the addressed SPI slave device simulta-
neously transfers the contents of its shift register to the SPI master on the MISO line in a full-duplex opera-
tion. The data byte received from the slave replaces the data in the master's data register. Therefore, the
SPIF flag serves as both a transmit-complete and receive-data-ready flag. The data transfer in both direc-
tions is synchronized with the serial clock generated by the master. Figure 15.3 illustrates the full-duplex
operation of an SPI master and an addressed slave.
Figure 15.3. Full Duplex Operation
The SPI data register is double buffered on reads, but not on a write. If a write to SPI0DAT is attempted
during a data transfer, the WCOL flag (SPI0CN.6) will be set to logic 1 and the write is ignored. The cur-
rent data transfer will continue uninterrupted. A read of the SPI data register by the system controller actu-
ally reads the receive buffer. If the receive buffer still holds unread data from a previous transfer when the
last bit of the current transfer is shifted into the SPI shift register, a receive overrun occurs and the
RXOVRN flag (SPI0CN.4) is set to logic 1. The new data is not transferred to the receive buffer, allowing
the previously received data byte to be read. The data byte causing the overrun is lost.
When the SPI is enabled and not configured as a master, it will operate as an SPI slave. Another SPI
device acting as a master will initiate a transfer by driving the NSS signal low. The master then shifts data
out of the shift register on the MOSI pin using the its serial clock. The SPIF flag is set to logic 1 at the end
of a data transfer (when the NSS signal goes high). The slave can load its shift register for the next data
transfer by writing to the SPI data register. The slave must make the write to the data register at least one
SPI serial clock cycle before the master starts the next transmission. Otherwise, the byte of data already in
the slave's shift register will be transferred.
Receive Buffer
0
1
2
3
4
5
6
7
SPI SHIFT REGISTER
SCK
MOSI
MISO
NSS
Receive Buffer
0
1
2
3
4
5
6
7
SPI SHIFT REGISTER
MASTER DEVICE
SLAVE DEVICE
P3.0
Baud Rate
Generator
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| C8051F012R | IC 8051 MCU 32K FLASH 32LQFP |
| C8051F127R | IC 8051 MCU 128K FLASH 64TQFP |
| C8051F011R | IC 8051 MCU 32K FLASH 48TQFP |
| C8051F010R | IC 8051 MCU 32K FLASH 64TQFP |
| PIC18LF4525-I/ML | IC MCU FLASH 24KX16 44QFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C8051F221 | 功能描述:8位微控制器 -MCU 8KB 8ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| C8051F221-GQ | 功能描述:8位微控制器 -MCU 8KB 8ADC 32P MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| C8051F221-GQR | 功能描述:8位微控制器 -MCU 8KB 8ADC 32Pin MCU Tape and Reel RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| C8051F221R | 功能描述:8位微控制器 -MCU T-8 32 Pin RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| C8051F226 | 功能描述:8位微控制器 -MCU 8KB 8ADC 1KRam RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。