REV. 1.0.1 2.18 Internal Loopback The M670 UART provides an in" />
參數(shù)資料
型號(hào): XR16M670IL24-F
廠(chǎng)商: Exar Corporation
文件頁(yè)數(shù): 15/50頁(yè)
文件大?。?/td> 0K
描述: IC UART FIFO 32B 24QFN
標(biāo)準(zhǔn)包裝: 490
特點(diǎn): *
通道數(shù): 1,UART
FIFO's: 32 字節(jié)
規(guī)程: RS232,RS422,RS485
電源電壓: 1.62 V ~ 3.63 V
帶自動(dòng)流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動(dòng)位檢測(cè)功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類(lèi)型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 24-QFN 裸露焊盤(pán)(4x4)
包裝: 托盤(pán)
XR16M670
22
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
REV. 1.0.1
2.18
Internal Loopback
The M670 UART provides an internal loopback capability for system diagnostic purposes. The internal
loopback mode is enabled by setting MCR register bit-4 to logic 1. All regular UART functions operate normally.
Figure 14 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 HIGH or mark condition while RTS# and DTR# are de-asserted, and CTS#,
DSR# CD# and RI# inputs are ignored. Caution: the RX input must be held HIGH during loopback test else
upon exiting the loopback test the UART may detect and report a false “break” signal.
FIGURE 14. INTERNAL LOOPBACK
TX
RX
M
ode
m
/
G
ene
ra
lP
u
rpose
Control
L
ogi
c
Inte
rnal
D
a
ta
Bus
Line
sand
Control
S
ignals
RT S #
M C R bit-4=1
VC C
T ra n sm it S h ift R e g is te r
(TH R /FIFO )
R ec e iv e S h ift R e gis ter
(RHR/F IF O )
CT S #
DT R#
DS R#
RI#
CD#
OP 1 #
RT S #
CT S #
DT R#
DS R#
RI#
CD #
VC C
OP 2 #
相關(guān)PDF資料
PDF描述
ST16C450CJ44TR-F IC UART SINGLE 44PLCC
XR16M780IB25-F IC UART FIFO 64B 25BGA
XR16M770IB25-F IC UART FIFO 64B 25BGA
XR19L400IL40TR-F IC UART/TXRX RS485 40QFN
XR16M680IB25-F IC UART FIFO 32B 25BGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16M670IL32 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
XR16M670IL32-0A-EB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M670IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
XR16M670IL32-0B-EB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M670IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
XR16M670IL32-0C-EB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M670IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
XR16M670IL32-F 功能描述:UART 接口集成電路 1.8 HIGH PERFORMANCE UART W/32 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