- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3910 > 101-0497 (Rabbit Semiconductor)MODULAR RABBIT CORE OP6810 PDF資料下載
參數(shù)資料
| 型號： | 101-0497 |
| 廠商： | Rabbit Semiconductor |
| 文件頁數(shù)： | 27/110頁 |
| 文件大小： | 0K |
| 描述： | MODULAR RABBIT CORE OP6810 |
| 標準包裝： | 1 |
| 系列： | RabbitCore® |
| 模塊/板類型： | 單板計算機模塊 |
| 適用于相關(guān)產(chǎn)品： | OP6810 |
| 其它名稱： | Q1912584 |
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頁當前第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
User’s Manual
19
3.3 Serial Communication
The OP6800 has two RS-232 serial ports, which can be configured as one RS-232 serial
channel (with RTS/CTS) or as two RS-232 (3-wire) channels using the serMode software
function call. Table 3 summarizes the options.
The OP6800 also has one RS-485 serial channel and one CMOS serial channel. The
CMOS serial channel serves as the programming port.
All four serial ports operate in an asynchronous mode. An asynchronous port can handle 7
or 8 data bits. A 9th bit address scheme, where an additional bit is sent to mark the first byte
of a message, is also supported. Serial Port A, the CMOS programming port, can be oper-
ated alternately in the clocked serial mode. In this mode, a clock line synchronously clocks
the data in or out. Either of the two communicating devices can supply the clock. The
OP6800 boards typically use all four ports in the asynchronous serial mode. Serial Ports B
and C are used for RS-232 communication, and Serial Port D is used for RS-485 commu-
nication. The OP6800 uses an 11.0592 MHz crystal, which is doubled to 22.1184 MHz. At
this frequency, the OP6800 supports standard asynchronous baud rates up to a maximum
of 230,400 bps.
3.3.1 RS-232
The OP6800 RS-232 serial communication is supported by an RS-232 transceiver. This
transceiver provides the voltage output, slew rate, and input voltage immunity required to
meet the RS-232 serial communication protocol. Basically, the chip translates the Rabbit
2000’s CMOS/TTL signals to RS-232 signal levels. Note that the polarity is reversed by
an RS-232 circuit so that a +5 V input becomes approximately -10 V and 0 V is output as
+10 V. The RS-232 transceiver also provides the proper line loading for reliable commu-
nication.
RS-232 can be used effectively at the OP6800’s maximum baud rate for distances of up to
15 m.
3.3.2 RS-485
The OP6800 has one RS-485 serial channel, which is connected to the Rabbit 2000 Serial
Port D through an RS-485 transceiver. The half-duplex communication uses the Rabbit
2000’s PB6 pin to control the transmit enable on the communication line.
The OP6800 can be used in an RS-485 multidrop network. Connect the 485+ to 485+ and
485– to 485– using single twisted-pair wires (nonstranded, tinned) as shown in Figure 11.
Note that a common ground is recommended.
Table 3. Serial Communication Configurations
Mode
Serial Port
B
C
D
0
RS-232, 3-wire
RS-485
1
RS-232, 5-wire
CTS/RTS
RS-485
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 18FMN-BMTTN-A-TF | CONN FMN HSNG 18POS STAG NOR SMD |
| 101-0599 | COMPUTER SNGLBD BL2500 512K FLSH |
| 20-101-0497 | MODULE OP6810 W/O ETH/MEM EXPANS |
| 20-101-0464 | COMPUTER SINGLE-BOARD BL2130 |
| SOMOMAP3503-21-1670AGCR | SYSTEM ON MODULE LV OMAP3503 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 10104997-00C-10B | 功能描述:高速/模塊連接器 XCEDE 2W 6PVH 6COL RoHS:否 制造商:Molex 系列:iPass 產(chǎn)品類型: 排數(shù): 列數(shù): 位置/觸點數(shù)量:38 安裝角:Right 節(jié)距:0.8 mm 安裝風格:Plug 端接類型:SMD/SMT 外殼材料:Thermoplastic 觸點材料:High Performance Alloy (HPA) 觸點電鍍:Gold |
| 10104997-00C-10DLF | 功能描述:高速/模塊連接器 XCEDE 2W 6PVH 6COL RoHS:否 制造商:Molex 系列:iPass 產(chǎn)品類型: 排數(shù): 列數(shù): 位置/觸點數(shù)量:38 安裝角:Right 節(jié)距:0.8 mm 安裝風格:Plug 端接類型:SMD/SMT 外殼材料:Thermoplastic 觸點材料:High Performance Alloy (HPA) 觸點電鍍:Gold |
| 10104997-00C-20B | 功能描述:高速/模塊連接器 XCEDE 2W LT 6PVH6COL RoHS:否 制造商:Molex 系列:iPass 產(chǎn)品類型: 排數(shù): 列數(shù): 位置/觸點數(shù)量:38 安裝角:Right 節(jié)距:0.8 mm 安裝風格:Plug 端接類型:SMD/SMT 外殼材料:Thermoplastic 觸點材料:High Performance Alloy (HPA) 觸點電鍍:Gold |
| 10104997-00C-20DLF | 功能描述:高速/模塊連接器 XCEDE 2W 6PVH 6COL XCEDE 2 WALL HEADER RoHS:否 制造商:Molex 系列:iPass 產(chǎn)品類型: 排數(shù): 列數(shù): 位置/觸點數(shù)量:38 安裝角:Right 節(jié)距:0.8 mm 安裝風格:Plug 端接類型:SMD/SMT 外殼材料:Thermoplastic 觸點材料:High Performance Alloy (HPA) 觸點電鍍:Gold |
| 10104997-00C-30B | 功能描述:高速/模塊連接器 XCEDE 6PR 6COL 2WALL RoHS:否 制造商:Molex 系列:iPass 產(chǎn)品類型: 排數(shù): 列數(shù): 位置/觸點數(shù)量:38 安裝角:Right 節(jié)距:0.8 mm 安裝風格:Plug 端接類型:SMD/SMT 外殼材料:Thermoplastic 觸點材料:High Performance Alloy (HPA) 觸點電鍍:Gold |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。