|
XR88C681 Datasheet, PDF (85/99 Pages) Exar Corporation – CMOS DUAL CHANNEL UART (DUART) | |||
|
◁ |
XR88C681
$$%% *&" " (
% C%D %
' '
!(
'($ & % (+ (
(
$(($ % $(' (% (
- $$%%$ '(
+ $$%%$ % (
$
$ ( +
'(
+ $ &% +% %%
$$%%$ ( % ( '(% $(%$"
$ ( '
(
(-
$ &% +%
& ( (
$ -(
! $$%% &
(%
%($ & C% ('D
H.2.2 DUART Multi-Drop Operation
-(
'
" ( (
(% -$ (
( $ & %(
-
N<41O J C" D #
(%
$"
%($ ' ' '
%(%% +
("
-$
+ $ (%"
$$%%.
. +- (L
$ -$ , (
-
.
J (
$('% ' ' (% $" (
. J
($
(+(% ( %
$$%%
Transmitter Operation During Multi-Drop Mode
%., '
% % +
%($
' ' & -(
-
NO + '
(
$(
- $ (% (
8 (
-
NO J
CD %% (
. J CD
$ %(
-
NO J CD %% (
. J CD Figure 48 %
% '$ + $(-
+
%((
- ' '%
$$%% " ( (
( $
#
3 C22
,#72D '
$
B( ! (
$ -(%
. *( CD
B( !!!!!!!
-(%
. *( CD
B( !!!!!!!
-(%
%(
$$%%
' ('
B( ' 8
#
3 C22
,#72D '
$
B( ! (
$ -(%
%( '
('
B( ' 8
'%
G%
B(
'(
('T
7
Figure 48. A Flow Diargam Depicting a Procedure That Can Be Used to
Transmit Characters in the Multi-Drop Mode
=6
|
▷ |