- 您现在的位置：买卖IC网 > PDF目录16527 > XR20V2172L64-0B-EB (Exar Corporation)EVAL BOARD FOR XR20V2170 64QFN PDF资料下载
参数资料
| 型号： | XR20V2172L64-0B-EB |
| 厂商： | Exar Corporation |
| 文件页数： | 22/51页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR20V2170 64QFN |
| 标准包装： | 1 |
| 系列： | * |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页当前第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页
XR20V2172
29
REV. 1.0.2
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
LCR[5]: TX and RX Parity Select
If the parity bit is enabled, LCR BIT-5 selects the forced parity format.
LCR BIT-5 = logic 0, parity is not forced (default).
LCR BIT-5 = logic 1 and LCR BIT-4 = logic 0, parity bit is forced to a logical 1 for the transmit and receive
data.
LCR BIT-5 = logic 1 and LCR BIT-4 = logic 1, parity bit is forced to a logical 0 for the transmit and receive
data.
TABLE 11: PARITY SELECTION
LCR BIT-5 LCR BIT-4 LCR BIT-3
PARITY SELECTION
X
0
No parity
0
1
Odd parity
0
1
Even parity
1
0
1
Force parity to mark, “1”
1
Forced parity to space, “0”
LCR[6]: Transmit Break Enable
When enabled, the Break control bit causes a break condition to be transmitted (the TX output is forced to a
“space", LOW state). This condition remains, until disabled by setting LCR bit-6 to a logic 0.
Logic 0 = No TX break condition (default).
Logic 1 = Forces the transmitter output (TX) to a “space”, LOW, for alerting the remote receiver of a line
break condition.
LCR[7]: Baud Rate Divisors Enable
Baud rate generator divisor (DLL, DLM and DLD) enable.
Logic 0 = Data registers are selected (default).
Logic 1 = Divisor latch registers are selected.
4.7
Modem Control Register (MCR) or General Purpose Outputs Control - Read/Write
The MCR register is used for controlling the serial/modem interface signals or general purpose inputs/outputs.
MCR[0]: DTR# Output
The DTR# pin is a modem control output. If the modem interface is not used, this output may be used as a
general purpose output.
Logic 0 = Force DTR# output HIGH (default).
Logic 1 = Force DTR# output LOW.
MCR[1]: RTS# Output
The RTS# pin is a modem control output and may be used for automatic hardware flow control by enabled by
EFR bit-6. The RTS# pin can also be used for Auto RS485 Half-Duplex direction control enabled by FCTR bit-
3. If the modem interface is not used, this output may be used as a general purpose output.
Logic 0 = Force RTS# HIGH (default).
Logic 1 = Force RTS# LOW.
相关PDF资料 |
PDF描述 |
|---|---|
| UPM1E181MPD6TD | CAP ALUM 180UF 25V 20% RADIAL |
| AQ1051N8S-T | INDUCTOR 1.8NH 760MA 0402 SMD |
| UPS2G3R3MPD1TD | CAP ALUM 3.3UF 400V 20% RADIAL |
| XR20V2172L64-0A-EB | EVAL BOARD FOR XR20V2170 64QFN |
| UPJ1C331MPD6TD | CAP ALUM 330UF 16V 20% RADIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR-210 | 制造商:EXAR 制造商全称:EXAR 功能描述:FSK MODULATOR / DEMODULATOR |
| XR-2100CJ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MODEM |
| XR-2100CP | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MODEM |
| XR-2103 | 制造商:EXAR 制造商全称:EXAR 功能描述:FSK Modem Filter |
| XR-2103A | 制造商:EXAR 制造商全称:EXAR 功能描述:FSK Modem Filter |
发布紧急采购，3分钟左右您将得到回复。