參數(shù)資料
型號: XR88C681J
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: CMOS DUAL CHANNEL UART (DUART)
中文描述: 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 76/99頁
文件大?。?/td> 1913K
代理商: XR88C681J
XR88C681
>/
MR2n[3:0] - Stop Bit Length
(% ( +($ -%
$$
$( + ./ ( ( $ ./ ( (%" (
('% + ./ (% ' -$ + ''
-%+/">$=(% 6(''" %(
$( ' -$ + ./ ( (%
$( +
% (%
(
' %($ ''
#+ ! ! ''3 (% -$ + %(
''3 5" N1O J %'% % ( $( +
( ( $ N1O J %'% $( + (
(% + %(%%(
'( & ''3% + 3 '$(( '
+ +(%%( (%" ((+ %$
(& ( (% %$ -$%% +
%($%(-#+ '($% %
C3D C 2D 2 (% +--$ ( %
-(%
-$
G.4 Status Register, SRn
% -(% ($% % ( %%
8 $ 8 '( $ %( # %"
%'(&L $ %%
% + E(& + '( + $ &
'(
# % ($('%
%&%% $ %
, ''3 $ % (+
%( (% & $. (% $& + $ +
, # %($('%%($('
8 % ''" (' (% ((- $
& ," (% + $ (' + '((- &
''% (
%( $
'( # %% ($('% '$ (
( + % -(%
($
, (
%+ ( $
( + % -(% % % +
& $ '( %
-(% $ $(%'%%( + ' ( +%4
(+ + %
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Received
Break
Framing Error
Parity Error
Overrun
Error
TXEMT
TXRDY
FFULL
RXRDY
J 7
J G
J 7
J G
J 7
J G
J 7
J G
J 7
J G
J 7
J G
J 7
J G
J 7
J G
Table 28. Status Register - SRA, SRB
SRn[7] Received Break
(% ( ($('%
-$ '' - % '($ (
% ( & %(- # %(( (% ''($
3 (% '($ $$(( %+% ( #
((($( 5( % 3(-%+
% + ( ( (% (% $+($ % %''%%(
$-% + ( ! ! ''3
I '' +
B (% ( (% %" 'H% C8702 #7 *2:
D (( #(%% (( #(% %%
$ + 3 '$((" % $+($ " (%
$'$
'(H%3$' -('' $'3% -(
( ($$ + '' 8" 3 %
%(%( $+ !''(($+(
$'$
#+
C'D $" (% ( & (% '
+ 8 (% ( ( '$ (+ 5
2 $" +
'" %
%
( (% -
''
-(' C(-D " (
!
#+ C2D$% % C*'3D$" (%
(" ' % ( ( %%$ (
2 D '$ % (3$ %
%
Table 3
this bit, in the Status Register will remain set, for all
subsequent characters, independent of the condition of
these received characters, until the “RESET ERROR
STATUS” command has been invoked.
C22
Please notethat ifthe ErrorMode is“Block”
SRn[6] Framing Error
(- '( +
%%'($ (& (" '( ( ''3 + C3D
'$(( (( +(- % $ (& (
(% C3D '$(( (% , ( #+ '(
$% $' C3D (% (" ( (% --$
C(-D +--(- ''' + 2 2
'' (%" $ &
#+ 2 $ % % C'D $" (%
( & (% '
+ 8 #+
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