REV. 1.0.2 66MHZ PCI BUS OCTAL UART WITH POWER MANAGEMENT SUPPORT (channel 2),......., 0xF00 (channel 7). This operation is at leas" />
參數(shù)資料
型號： XR17V258IV-0A-EVB
廠商： Exar Corporation
文件頁數(shù)： 22/69頁
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR17V258 144LQFP
標準包裝： 1
系列： *
XR17V258
29
REV. 1.0.2
66MHZ PCI BUS OCTAL UART WITH POWER MANAGEMENT SUPPORT
(channel 2),......., 0xF00 (channel 7). This operation is at least 16 times faster than reading the data in 64
separate 8-bit memory reads of RHR register (0x000 for channel 0, 0x200 for channel 1, 0x400 for channel
2,......, 0xE00 for channel 7).
READ RX FIFO,
WITH NO ERRORS
BYTE 3
BYTE 2
BYTE 1
BYTE 0
Read n+0 to n+3
FIFO Data n+3
FIFO Data n+2
FIFO Data n+1
FIFO Data n+0
Read n+4 to n+7
FIFO Data n+7
FIFO Data n+6
FIFO Data n+5
FIFO Data n+4
Etc.
PCI Bus
Data Bit-31
B7 B6 B5 B4 B3 B2 B1 B0
Receive Data Byte n+3
Receive Data Byte n+2
Receive Data Byte n+1
Receive Data Byte n+0
PCI Bus
Data Bit-0
Channel 0 to 7 ReceiveData in 32-bit alignment through the Configuration Register Address
0x0100, 0x0300, 0x0500, 0x0700, 0x0900, 0x0B00, 0x0D00 and 0x0F00
3.1.2
Special Rx FIFO Data Unloading at locations 0x180, 0x380, 0x580, and 0x780
The XR17V258 also provides the same RX FIFO data along with the LSR status information of each byte side-
by-side, at locations 0x180 (channel 0), 0x380 (channel 1), 0x580 (channel 2), ....., 0xF80 (channel 3). The
entire RX data along with the status can be downloaded in a single PCI Burst Read operation of 32 DWORD
reads. The Status and Data bytes must be read in 16 or 32 bits format to maintain data integrity. The following
tables show this clearly.
READ RX FIFO,
WITH LSR
ERRORS
BYTE 3
BYTE 2
BYTE 1
BYTE 0
Read n+0 to n+1
FIFO Data n+1
LSR n+1
FIFO Data n+0
LSR n+0
Read n+2 to n+3
FIFO Data n+3
LSR n+3
FIFO Data n+2
LSR n+2
Etc
PCI Bus
Data Bit-31
B7 B6 B5 B4 B3 B2 B1 B0
Receive Data Byte n+1
Line Status Register n+1
Receive Data Byte n+0
Line Status Register n+0
PCI Bus
Data Bit-0
Channel 0 to 7 Receive Data with Line Status Register in a 32-bit alignment through the Configuration
Register Address 0x0180, 0x0380, 0x0580, 0x0780, 0x0980, 0x0B80, 0x0D80 and 0x0F80
相關(guān)PDF資料
PDF描述
GCC10DRYN-S734 CONN EDGECARD 20POS DIP .100 SLD
VI-B1Y-EV CONVERTER MOD DC/DC 3.3V 99W
155880-000 SOLDER SLEEVE 11MM DIA SHIELD
VI-2VR-EX CONVERTER MOD DC/DC 7.5V 75W
VI-2VP-EX CONVERTER MOD DC/DC 13.8V 75W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17V258IVF 制造商:Exar Corporation 功能描述:
XR17V258IV-F 功能描述:UART 接口集成電路 66MHz Octal PCI UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR17V258IVTR-F 功能描述:UART 接口集成電路 66MHz Octal PCI UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR17V352 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE DUAL PCI EXPRESS UART
XR17V352IB-0A-EVB 功能描述:界面開發(fā)工具 Eval Board for XR17V352IB Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*