REV. 1.0.3 HIGH PERFORMANCE QUAD PCI-EXPRESS UART 3.4 Internal Loopback Each UART channel provides an internal loopba" />
參數(shù)資料
型號: XR17V354IB176-F
廠商: Exar Corporation
文件頁數(shù): 33/66頁
文件大?。?/td> 0K
描述: IC UART PCIE 256B QUAD 176FPBGA
產(chǎn)品培訓模塊: PCIe UARTs
標準包裝: 160
特點: *
通道數(shù): 4,QUART
FIFO's: 256 字節(jié)
規(guī)程: RS485
電源電壓: 3.3V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動位檢測功能:
帶調(diào)制解調(diào)器控制功能:
安裝類型: 表面貼裝
封裝/外殼: 176-LFBGA
供應商設(shè)備封裝: 176-FPBGA(13x13)
包裝: 托盤
其它名稱: 1016-1472
XR17V354IB176-F-ND
XR17V354
39
REV. 1.0.3
HIGH PERFORMANCE QUAD PCI-EXPRESS UART
3.4
Internal Loopback
Each UART channel provides an internal loopback capability for system diagnostic. The internal loopback
mode is enabled by setting MCR register bit [4] to a logic 1. All regular UART functions operate normally.
Figure 12 shows how the modem port signals are re-configured. Transmit data from the transmit shift register
output is internally routed to the receive shift register input allowing the system to receive the same data that it
was sending. The TX pin is held at HIGH or mark condition while RTS# and DTR# are de-asserted. The CTS#,
DSR#, CD# and RI# inputs are ignored.
FIGURE 12. INTERNAL LOOP BACK
TX [3:0]
RX [3:0]
M
o
de
m
/
G
e
ne
ral
Pur
po
se
Co
nt
ro
l
L
ogic
In
ter
nal
Bu
s
Li
nes
an
d
Con
tr
o
lSig
na
ls
RTS# [3:0]
MCR bit-4=1
VCC
Transmit Shift
Register
Receive Shift
Register
CTS# [3:0]
DTR# [3:0]
DSR# [3:0]
RI# [3:0]
CD# [3:0]
OP1#
OP2#
RTS#
CTS#
DTR#
DSR#
RI#
CD#
相關(guān)PDF資料
PDF描述
XR17V358IB176-F IC UART PCIE OCTAL 176FPBGA
XR19L200IL32-F IC UART/TXRX RS232 32QFN
XR19L202IL48-F IC UART/TXRX RS232 48QFN
XR19L210IL40-F IC UART/TXRX RS232 40QFN
XR19L212IL48-F IC UART/TXRX RS232 48QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17V354IB-E4-EVB 功能描述:界面開發(fā)工具 Eval Board for XR17V354IB-E4 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
XR17V354IB-E8-EVB 功能描述:界面開發(fā)工具 Eval Board for XR17V354IB-E8 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
XR17V358 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE OCTAL PCI EXPRESS UART
XR17V358IB-0A-EVB 功能描述:界面開發(fā)工具 Eval Board for XR17V358IB-0A 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
XR17V358IB176-F 功能描述:UART 接口集成電路 8 Channel PCIe UART w/256 Byte FIFO 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