參數(shù)資料
型號: XR16M780IL32-0A-EB
廠商: Exar Corporation
文件頁數(shù): 17/58頁
文件大小: 0K
描述: EVAL BOARD FOR XR16M780-A 32QFN
標準包裝: 1
系列: *
XR16M780
24
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
REV. 1.0.0
2.18
Internal Loopback
The M780 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 15 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 15. INTERNAL LOOPBACK
TX
RX
M
ode
m
/
G
ene
ra
l
P
u
rpose
Control
L
ogi
c
Inte
rnal
D
a
ta
Bus
Line
s
and
Control
S
ignals
RT S #
M C R bit-4=1
VC C
T ra n s m it S h ift R e g is te r
(T H R /FIFO )
R e c 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PDF資料
PDF描述
GMM11DSEN-S13 CONN EDGECARD 22POS .156 EXTEND
XR16V2750IM-0B-EB EVAL BOARD FOR V2750 48TQFP
VE-JVT-EZ-S CONVERTER MOD DC/DC 6.5V 25W
UPM1A681MPD6TD CAP ALUM 680UF 10V 20% RADIAL
GMM11DSEH-S13 CONN EDGECARD 22POS .156 EXTEND
相關代理商/技術參數(shù)
參數(shù)描述
XR16M780IL32-0B-EB 功能描述:界面開發(fā)工具 Eval Board for XR16M780IL32 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
XR16M780IL32-0C-EB 功能描述:界面開發(fā)工具 Eval Board for XR16M780IL32 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
XR16M780IL32-F 功能描述:UART 接口集成電路 1.8 HIGH PERFORMANCE UART W/64 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
XR16M780IM48 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
XR16M780IM48-0A-EB 功能描述:界面開發(fā)工具 Eval Board for XR16M780IM48 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