- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄24793 > 935027000518 (NXP SEMICONDUCTORS) 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44 PDF資料下載
參數(shù)資料
| 型號： | 935027000518 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 18/34頁 |
| 文件大?。?/td> | 250K |
| 代理商： | 935027000518 |
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頁當(dāng)前第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
Philips Semiconductors
Product specification
SCC2692
Dual asynchronous receiver/transmitter (DUART)
1998 Sep 04
25
A condition that occurs infrequently has been observed where the receiver will ignore all data. It is caused by a corruption of the start bit
generally due to noise. When this occurs the receiver will appear to be asleep or locked up. The receiver must be reset for the UART to
continue to function properly.
Reset in the Normal Mode (Receiver Enabled)
Recovery can be accomplished easily by issuing a receiver software reset followed by a receiver enable. All receiver data, status and
programming will be preserved and available before reset. The reset will NOT affect the programming.
Reset in the Wake-Up Mode (MR1[4:3] = 11)
Recovery can also be accomplished easily by first exiting the wake-up mode (MR1[4:3] = 00 or 01 or 10), then issuing a receiver software
reset followed by a wake-up re-entry (MR1[4:3] = 11). All receiver data, status and programming will be preserved and available before
reset. The reset will NOT affect the programming.
The receiver has a digital filter designed to reject “noisy” data transitions and the receiver state machine was designed to reject noisy start
bits or noise that might be considered a start bit. In spite of these precautions, corruption of the start bit can occur in 15ns window
approximately 100ns prior to the rising edge of the data clock. The probability of this occurring is less than 10–5 at 9600 baud.
A corrupted start bit may have some deleterious effects in ASYNC operation if it occurs within a normal data block. The receiver will tend
to align its data clock to the next ‘0’ bit in the data stream, thus potentially corrupting the remainder of the data block. A good design
practice, in environments where start bit corruption is possible, is to monitor data quality (framing error, parity error, break change and
received break) and “data stopped” time out periods. Time out periods can be enabled using the counter/timer in the SCC2691, SCC2692,
SCC2698B and SC68692 products. This monitoring can indicate a potential start bit corruption problem.
SD00097
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 06LTM0075A | WIDERSTANDSAUFNEHMER MINIATUR 75MM |
| 06MU06MU | ADAPTER BSP G 0.38X0.38ZOLL |
| 06MU06NU | AUSSENGEWINDE BSP DREHB G 0.38X0.38ZOLL |
| 06MU08MU | ADAPTER BSP G 0.38X0.5ZOLL |
| 06MU08NU | AUSSENGEWINDE BSP DREHB G 0.38X0.5ZOLL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 9350-2R1 | 制造商:Johanson Manufacturing 功能描述:VARIABLE CAPACITOR 制造商:Johanson 功能描述:9350-2R1 |
| 9350301 | 功能描述:工業(yè)壓力 / 力傳感器 SST PRESS TRANSDUCER RoHS:否 制造商:Honeywell 工作壓力:0 bar to 25 bar 壓力類型:Sealed Gauge 準(zhǔn)確性:0.25 % 輸出類型: 安裝風(fēng)格:Screw 工作電源電壓:8 V to 30 V 輸出電壓:8 V to 30 V 封裝: |
| 9350303 | 功能描述:工業(yè)壓力 / 力傳感器 SST PRESS TRANSDUCER RoHS:否 制造商:Honeywell 工作壓力:0 bar to 25 bar 壓力類型:Sealed Gauge 準(zhǔn)確性:0.25 % 輸出類型: 安裝風(fēng)格:Screw 工作電源電壓:8 V to 30 V 輸出電壓:8 V to 30 V 封裝: |
| 935030750623 | 制造商:NXP Semiconductors 功能描述:IC MIXER 500MHZ UP CONVRT 8SO |
| 9350317 | 制造商:Honeywell / Clarostat 功能描述:SST PRESSURE TRANSDUCERS 制造商:Honeywell Sensing and Control 功能描述:SST PRESSURE TRANSDUCERS 制造商:Honeywell Sensing and Control 功能描述:9350317 SST PRESSURE TRANSDUCERS |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。