- 您現在的位置：買賣IC網 > PDF目錄371043 > MC68332AMFV20 (MOTOROLA INC) 32-Bit Modular Microcontroller PDF資料下載
參數資料
| 型號： | MC68332AMFV20 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-Bit Modular Microcontroller |
| 中文描述： | 32-BIT, 20.97 MHz, MICROCONTROLLER, PQFP144 |
| 封裝： | QFP-144 |
| 文件頁數： | 82/88頁 |
| 文件大小： | 446K |
| 代理商： | MC68332AMFV20 |
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頁當前第82頁第83頁第84頁第85頁第86頁第87頁第88頁
MOTOROLA
82
MC68332
MC68332TS/D
SBK — Send Break
0 = Normal operation
1 = Break frame(s) transmitted after completion of current frame
SBK provides the ability to transmit a break code from the SCI. If the SCI is transmitting when SBK is
set, it will transmit continuous frames of zeros after it completes the current frame, until SBK is cleared.
If SBK is toggled (one to zero in less than one frame interval), the transmitter sends only one or two
break frames before reverting to idle line or beginning to send data.
SCSR contains flags that show SCI operational conditions. These flags can be cleared either by hard-
ware or by a special acknowledgment sequence. The sequence consists of SCSR read with flags set,
followed by SCDR read (write in the case of TDRE and TC). A long-word read can consecutively access
both SCSR and SCDR. This action clears receive status flag bits that were set at the time of the read,
but does not clear TDRE or TC flags.
If an internal SCI signal for setting a status bit comes after the CPU has read the asserted status bits,
but before the CPU has written or read register SCDR, the newly set status bit is not cleared. SCSR
must be read again with the bit set. Also, SCDR must be written or read before the status bit is cleared.
Reading either byte of SCSR causes all 16 bits to be accessed. Any status bit already set in either byte
will be cleared on a subsequent read or write of register SCDR.
TDRE — Transmit Data Register Empty Flag
0 = Register TDR still contains data to be sent to the transmit serial shifter.
1 = A new character can now be written to register TDR.
TDRE is set when the byte in register TDR is transferred to the transmit serial shifter. If TDRE is zero,
transfer has not occurred and a write to TDR will overwrite the previous value. New data is not trans-
mitted if TDR is written without first clearing TDRE.
TC — Transmit Complete Flag
0 = SCI transmitter is busy
1 = SCI transmitter is idle
TC is set when the transmitter finishes shifting out all data, queued preambles (mark/idle line), or
queued breaks (logic zero). The interrupt can be cleared by reading SCSR when TC is set and then by
writing the transmit data register (TDR) of SCDR.
RDRF — Receive Data Register Full Flag
0 = Register RDR is empty or contains previously read data.
1 = Register RDR contains new data.
RDRF is set when the content of the receive serial shifter is transferred to the RDR. If one or more errors
are detected in the received word, flag(s) NF, FE, and/or PF are set within the same clock cycle.
RAF — Receiver Active Flag
0 = SCI receiver is idle
1 = SCI receiver is busy
RAF indicates whether the SCI receiver is busy. It is set when the receiver detects a possible start bit
and is cleared when the chosen type of idle line is detected. RAF can be used to reduce collisions in
systems with multiple masters.
SCSR
— SCI Status Register
$YFFC0C
15
9
8
7
6
5
4
3
2
1
0
NOT USED
TDRE
TC
RDRF
RAF
IDLE
OR
NF
FE
PF
RESET:
1
1
0
0
0
0
0
0
0
相關PDF資料 |
PDF描述 |
|---|---|
| MC68332VFV16 | 32-Bit Modular Microcontroller |
| MC68332AVFV16 | 32-Bit Modular Microcontroller |
| MC68332VFV20 | 32-Bit Modular Microcontroller |
| MC68332AVFV20 | 32-Bit Modular Microcontroller |
| MC68332CFV16 | 32-Bit Modular Microcontroller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC68332AMPV20 | 制造商:Rochester Electronics LLC 功能描述:32BIT MCU,2KRAM,TPU,QSM - Bulk |
| MC68332AVAG25 | 功能描述:32位微控制器 - MCU 32B MCU 2KRAM TPU QSM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數據總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數據 RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT |
| MC68332AVEH16 | 功能描述:32位微控制器 - MCU 32B MCU 2KRAM TPU QSM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數據總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數據 RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT |
| MC68332AVEH20 | 功能描述:32位微控制器 - MCU 32B MCU 2KRAM TPU QSM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數據總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數據 RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT |
| MC68332AVEH25 | 功能描述:32位微控制器 - MCU 32B MCU 2KRAM TPU QSM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數據總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數據 RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT |
發布緊急采購，3分鐘左右您將得到回復。