- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45290 > MC9S08RE32CFDE (FREESCALE SEMICONDUCTOR INC) 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC48 PDF資料下載
參數(shù)資料
| 型號： | MC9S08RE32CFDE |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, MO-220VKKD-2, TQFN-48 |
| 文件頁數(shù)： | 66/234頁 |
| 文件大?。?/td> | 1758K |
| 代理商： | MC9S08RE32CFDE |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁當(dāng)前第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁第206頁第207頁第208頁第209頁第210頁第211頁第212頁第213頁第214頁第215頁第216頁第217頁第218頁第219頁第220頁第221頁第222頁第223頁第224頁第225頁第226頁第227頁第228頁第229頁第230頁第231頁第232頁第233頁第234頁
Serial Communications Interface (S08SCIV1)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
158
Freescale Semiconductor
the transmit data register is transferred to the shift register (synchronized with the baud rate clock) and the
transmit data register empty (TDRE) status ag is set to indicate another character may be written to the
transmit data buffer at SCI1D.
If no new character is waiting in the transmit data buffer after a stop bit is shifted out the TxD1 pin, the
transmitter sets the transmit complete ag and enters an idle mode, with TxD1 high, waiting for more
characters to transmit.
Writing 0 to TE does not immediately release the pin to be a general-purpose I/O pin. Any transmit activity
that is in progress must rst be completed. This includes data characters in progress, queued idle
characters, and queued break characters.
12.3.2.1
Send Break and Queued Idle
The SBK control bit in SCI1C2 is used to send break characters which were originally used to gain the
attention of old teletype receivers. Break characters are a full character time of logic 0 (10 bit times
including the start and stop bits). Normally, a program would wait for TDRE to become set to indicate the
last character of a message has moved to the transmit shifter, then write 1 and then write 0 to the SBK bit.
This action queues a break character to be sent as soon as the shifter is available. If SBK is still 1 when the
queued break moves into the shifter (synchronized to the baud rate clock), an additional break character is
queued. If the receiving device is another Freescale Semiconductor SCI, the break characters will be
received as 0s in all eight data bits and a framing error (FE = 1) occurs.
When idle-line wakeup is used, a full character time of idle (logic 1) is needed between messages to wake
up any sleeping receivers. Normally, a program would wait for TDRE to become set to indicate the last
character of a message has moved to the transmit shifter, then write 0 and then write 1 to the TE bit. This
action queues an idle character to be sent as soon as the shifter is available. As long as the character in the
shifter does not nish while TE = 0, the SCI transmitter never actually releases control of the TxD1 pin. If
there is a possibility of the shifter nishing while TE = 0, set the general-purpose I/O controls so the pin
that is shared with TxD1 is an output driving a logic 1. This ensures that the TxD1 line will look like a
normal idle line even if the SCI loses control of the port pin between writing 0 and then 1 to TE.
12.3.3
Receiver Functional Description
In this section, the data sampling technique used to reconstruct receiver data is described in more detail;
two variations of the receiver wakeup function are explained. (The receiver block diagram is shown in
The receiver is enabled by setting the RE bit in SCI1C2. Character frames consist of a start bit of logic 0,
eight (or nine) data bits (LSB rst), and a stop bit of logic 1. For information about 9-bit data mode, refer
to Section 12.3.5.1, “8- and 9-Bit Data Modes.” For the remainder of this discussion, we assume the SCI
is congured for normal 8-bit data mode.
After receiving the stop bit into the receive shifter, and provided the receive data register is not already full,
the data character is transferred to the receive data register and the receive data register full (RDRF) status
ag is set. If RDRF was already set indicating the receive data register (buffer) was already full, the overrun
(OR) status ag is set and the new data is lost. Because the SCI receiver is double-buffered, the program
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC9S08RE32FJE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32 |
| MC9S08RD16CFGE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44 |
| MC9S08RD32FDE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC48 |
| MC9S08RD8FJE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32 |
| MC9S08RD8FDE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC9S08RE32CFGE | 功能描述:IC MCU 32K FLASH 2K RAM 44-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:S08 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲器容量:8KB（8K x 8） 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285 |
| MC9S08RE32CFJ | 制造商:Rochester Electronics LLC 功能描述:9S08 2K RAM 32K FLASH - Bulk 制造商:Freescale Semiconductor 功能描述: |
| MC9S08RE32CFJE | 功能描述:IC MCU 32K FLASH 8MHZ 32-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:S08 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲器容量:8KB（8K x 8） 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285 |
| MC9S08RE32CPE | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC9S08RE32DWE | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。