參數(shù)資料
型號(hào): ST72F324BJ6B6
廠商: STMICROELECTRONICS
元件分類(lèi): 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP42
封裝: 0.600 INCH, SHRINK, PLASTIC, DIP-42
文件頁(yè)數(shù): 10/188頁(yè)
文件大?。?/td> 2867K
代理商: ST72F324BJ6B6
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ST72324B
On-chip peripherals
Transmitter
The transmitter can send data words of either 8 or 9 bits depending on the M bit status.
When the M bit is set, word length is 9 bits and the 9th bit (the MSB) has to be stored in the
T8 bit in the SCICR1 register.
Character transmission
During an SCI transmission, data shifts out LSB first on the TDO pin. In this mode, the
SCIDR register consists of a buffer (TDR) between the internal bus and the transmit shift
register (see Figure 57).
Procedure
1.
Select the M bit to define the word length.
2.
Select the desired baud rate using the SCIBRR and the SCIETPR registers.
3.
Set the TE bit to assign the TDO pin to the alternate function and to send a idle frame
as first transmission.
4.
Access the SCISR register and write the data to send in the SCIDR register (this
sequence clears the TDRE bit). Repeat this sequence for each data to be transmitted.
Clearing the TDRE bit is always performed by the following software sequence:
1.
An access to the SCISR register
2.
A write to the SCIDR register
The TDRE bit is set by hardware and it indicates:
The TDR register is empty.
The data transfer is beginning.
The next data can be written in the SCIDR register without overwriting the previous
data.
This flag generates an interrupt if the TIE bit is set and the I bit is cleared in the CCR
register.
When a transmission is taking place, a write instruction to the SCIDR register stores the
data in the TDR register and which is copied in the shift register at the end of the current
transmission.
When no transmission is taking place, a write instruction to the SCIDR register places the
data directly in the shift register, the data transmission starts, and the TDRE bit is
immediately set.
When a frame transmission is complete (after the stop bit) the TC bit is set and an interrupt
is generated if the TCIE is set and the I bit is cleared in the CCR register.
Clearing the TC bit is performed by the following software sequence:
1.
An access to the SCISR register
2.
A write to the SCIDR register
Note:
The TDRE and TC bits are cleared by the same software sequence.
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PDF描述
ST72F324BK6T6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72F324BJ6T3 功能描述:8位微控制器 -MCU ST72324B 5V RANGE 8B 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
ST72F324BJ6T6 功能描述:8位微控制器 -MCU 8-BIT MCU W/ 8-32K Flash/ROM ADC 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
ST72F324BJ6T6TR 功能描述:8位微控制器 -MCU 5V RANGE 8B 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
ST72F324BJ6TAE 功能描述:8位微控制器 -MCU 8B MCU 3.8 to 5.5V 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
ST72F324BJ6TAS 制造商:STMicroelectronics 功能描述:MCU 8-bit ST7 CISC 32KB Flash 5V 44-Pin LQFP Tray