参数资料
型号: XR68C681P-F
厂商: Exar Corporation
文件页数: 55/75页
文件大小: 0K
描述: IC UART CMOS DUAL 40PDIP
标准包装: 9
特点: *
通道数: 2,DUART
FIFO's: 1 字节,3 字节
电源电压: 5V
安装类型: 通孔
封装/外壳: 40-DIP(0.600",15.24mm)
供应商设备封装: 40-PDIP
包装: 管件
XR68C681
6
5
Figure 27. An Illustration Depicting the Concept of Multi-Drop Mode
5
% ('
('%
.
:*
*
< *( '
$$%%. *(
Figure 28. Bit Format of Character Data Being Transmitted in
the Multi-Drop Mode
H% (I '('% H
(%I & %((- '' &('& & (
H$$%%.I ( +- $$ $ +
'' (% &('& %% ( ( (% + $ (-
%($ + & '' &" % %$ (
Figure 28
A H% (I % %( '3 +
$ + % %%" ( +(% %$% $$%%
& ($(+(% H- I $$%% &
$(++% + $ & ( ( ( (% HI (
$$%% & $ HI ( $ &
$$%% &" " (% H%I %
' ' !( '($ & % (+ (
($(($ % $(' (% (- $$%%$ '(
+ $$%%$ % ( $ $ ( +
'( + $ &% +% %%
$$%%$ ( % ( '(% $(%$"
$ ( '( (- $ &% +%
& ( ($ -( ! $$%% &
(% %($ & H% ('I
H.2.2 DUART Multi-Drop Operation
-( ' (( (% -$ (
($ $ & %(- M=41N J H" I # (%
$" %($ '' '%(%% + ("
-$ + $ (%" $$%%.
. +- (K $ -$ , ( - .
J ($('% '' (% $" ( . J
($(+(% ( % $$%%
Transmitter Operation During Multi-Drop Mode
%., '% % + %($
'' & -(- MN + ' (
$(- $ (% ( 9 (- MN J
HI %% ( . J HI $ %(- MN J HI %% (
. J HI Figure 29 %% '$ + $(-
+ %((- ''% $$%% " ( (
($ $
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