- 您现在的位置：买卖IC网 > PDF目录16827 > XR17V354IB-0A-EVB (Exar Corporation)EVAL BOARD FOR XR17V354-A 176BGA PDF资料下载
参数资料
| 型号： | XR17V354IB-0A-EVB |
| 厂商： | Exar Corporation |
| 文件页数： | 37/66页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR17V354-A 176BGA |
| 产品培训模块： | PCIe UARTs |
| 标准包装： | 1 |
| 主要目的： | 接口，UART |
| 嵌入式： | 否 |
| 已用 IC / 零件： | XR17V354 |
| 已供物品： | 板 |
| 其它名称： | 1016-1611 XR17V354IB-0A-EVB-ND |
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页当前第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页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页
XR17V354
42
HIGH PERFORMANCE QUAD PCI-EXPRESS UART
REV. 1.0.3
NOTE: MCR bits [3:2] (OP1 and OP2 outputs) are not available in the XR17V354. They are present for 16C550
compatibility during Internal loopback, see
3.6
Transmitter
The transmitter section comprises of a 256 bytes of FIFO, a byte-wide Transmit Holding Register (THR) and an
8-bit Transmit Shift Register (TSR). THR receives a data byte from the host (non-FIFO mode) or a data byte
from the FIFO when the FIFO is enabled by FCR bit [0]. TSR shifts out every data bit with the 16X or 8X
internal clock. A bit time is 16 or 8 clock periods. The transmitter sends the start bit followed by the number of
data bits, inserts the proper parity bit if enable, and adds the stop bit(s). The status of the THR and TSR are
reported in the Line Status Register (LSR bit [6:5]).
3.6.1
Transmit Holding Register (THR)
The transmit holding register is an 8-bit register providing a data interface to the host processor. The host
writes transmit data byte to the THR to be converted into a serial data stream including start-bit, data bits,
parity-bit and stop-bit(s). The least-significant-bit (bit [0]) becomes first data bit to go out. The THR is also the
input register to the transmit FIFO of 256 bytes when FIFO operation is enabled by FCR bit[0]. A THR empty
interrupt can be generated when it is enabled in IER bit [1].
3.6.2
Transmitter Operation in non-FIFO Mode
The host loads transmit data to THR one character at a time. The THR empty flag (LSR bit [5]) is set when the
data byte is transferred to TSR. THR flag can generate a transmit empty interrupt (ISR bit [1]) when it is
enabled by IER bit [1]. The TSR flag (LSR bit [6]) is set when TSR becomes completely empty.
1 0 0 1
EFR
R/W
Auto
CTS/
DSR
Enable
Auto
RTS/
DTR
Enable
Special
Char
Select
Enable
IER [7:5],
ISR [5:4],
FCR[5:4],
MCR[7:5],
MSR
Soft-
ware
Flow
Cntl
Bit [3]
Soft-
ware
Flow
Cntl
Bit [2]
Soft-
ware
Flow
Cntl
Bit [1]
Software
Flow Cntl
Bit [0]
1 0 1 0
TXCNT
R
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit [2]
Bit [1]
Bit [0]
1 0 1 0
TXTRG
W
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit [2]
Bit [1]
Bit [0]
1 0 1 1
RXCNT
R
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit [2]
Bit [1]
Bit [0]
1 0 1 1
RXTRG
W
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit [2]
Bit [1]
Bit [0]
1 1 0 0
XCHAR
R
0
TX Xon
Indicator
TX Xoff
Indicator
Xon Det.
Indicator
Xoff Det.
Indicator
Self clear
after read
1 1 0 0
XOFF1
W
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit-2
Bit [1]
Bit [0]
1 1 0 1
XOFF2
W
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit-2
Bit [1]
Bit [0]
1 1 1 0
XON1
W
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit-2
Bit [1]
Bit [0]
1 1 1 1
XON2
W
Bit [7]
Bit [6]
Bit [5]
Bit [4]
Bit [3]
Bit-2
Bit [1]
Bit [0]
TABLE 14: UART CHANNEL CONFIGURATION REGISTERS DESCRIPTION. SHADED BITS ARE ENABLED BY EFR BIT-4.
ADDRESS
A3-A0
REG
NAME
READ/
WRITE
BIT [7]
BIT [6]
BIT [5]
BIT [4]
BIT [3]
BIT [2]
BIT[1]
BIT [0]
COMMENT
相关PDF资料 |
PDF描述 |
|---|---|
| 202A196-3-0 | BOOT MOLDED |
| 570-002-734-100 | ASSEMBLY PLUG 2POS WATERPROOF |
| LMR040-0700-CCF9-2KIT4X | KIT DEV LMR040-0700, 230V |
| 322A024-25-0 | BOOT MOLDED |
| 0210490393 | CABLE JUMPER 1.25MM .102M 32POS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR17V354IB176-F | 功能描述:UART 接口集成电路 4 Channel PCIe UART w/256 Byte FIFO 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 |
| XR17V354IB-E4-EVB | 功能描述:界面开发工具 Eval Board for XR17V354IB-E4 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 |
| XR17V354IB-E8-EVB | 功能描述:界面开发工具 Eval Board for XR17V354IB-E8 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 |
| XR17V358 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE OCTAL PCI EXPRESS UART |
| XR17V358IB-0A-EVB | 功能描述:界面开发工具 Eval Board for XR17V358IB-0A 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 |
发布紧急采购，3分钟左右您将得到回复。