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参数资料
| 型号： | XR19L200IL32-0A-EB |
| 厂商： | Exar Corporation |
| 文件页数： | 14/40页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR19L200 32QFN |
| 标准包装： | 1 |
| 系列： | * |
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XR19L200
21
REV. 1.0.2
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
FCR[7:6]: Receive FIFO Trigger Select
(’00’ = default, RX trigger level =1)
These 2 bits are used to set the trigger level for the receive FIFO. The UART will issue a receive interrupt when
the number of the characters in the FIFO crosses the trigger level. Table 8 shows the selections.
4.7
Line Control Register (LCR) - Read/Write
The Line Control Register is used to specify the asynchronous data communication format. The word or
character length, the number of stop bits, and the parity are selected by writing the appropriate bits in this
register.
LCR[1:0]: TX and RX Word Length Select
These two bits specify the word length to be transmitted or received.
LCR[2]: TX and RX Stop-bit Length Select
The length of stop bit is specified by this bit in conjunction with the programmed word length.
LCR[3]: TX and RX Parity Select
Parity or no parity can be selected via this bit. The parity bit is a simple way used in communications for data
integrity check. See Table 9 for parity selection summary below.
Logic 0 = No parity.
Logic 1 = A parity bit is generated during the transmission while the receiver checks for parity error of the
data character received.
TABLE 8: TRANSMIT AND RECEIVE FIFO TRIGGER LEVEL SELECTION
FCR
BIT-7
FCR
BIT-6
FCR
BIT-5
FCR
BIT
-4
RECEIVE
TRIGGER LEVEL
TRANSMIT
TRIGGER LEVEL
COMPATIBILITY
0
1
0
1
0
1
1 (default)
4
8
14
16L580 and 16C580 compatible.
0
1
0
1
0
1
1 (default)
4
8
14
16L580, 16C550, 16C580, 16C554,
16C2550 and 16C2552 compatible
BIT-1
BIT-0
WORD LENGTH
0
5 (default)
0
1
6
1
0
7
1
8
BIT-2
WORD
LENGTH
STOP BIT LENGTH
(BIT TIME(S))
0
5,6,7,8
1 (default)
1
5
1-1/2
1
6,7,8
2
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| XR19L200IL32-0B-EB | 功能描述:界面开发工具 Supports L200 32 pin QFN, PCI Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR19L200IL32-F | 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR19L202 | 制造商:EXAR 制造商全称:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L202IL48 | 制造商:EXAR 制造商全称:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L202IL48-0B-EB | 功能描述:界面开发工具 Supports L202 48 pin QFN,PCI Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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