参数资料
型号: XR68C681P-F
厂商: Exar Corporation
文件页数: 48/75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
( '' (% (- %((G$ $ ++'
%(%%( + '' (% (%
+ (%$ ( Figure 24 $ Figure 26
MR2n[3:0] - Stop Bit Length
(% ( +($ -% $( + % (%
$$ ' %($ ''
(
$( + ./ ( ( $ ./ ( (%" (
('% + ./ (% ' -$ + ''
-% + /" @ $ < (% 6 ( ''" % (
$( ' -$ + ./ ( (%
#+ ! ! ''3 (% -$ + %(
''3 5" M1N J %'% % ( $( +
( ( $ M1N J %'% $( + (
(% + %(%%(
'( & ''3% + 3 '$(( '
+ +(% % ( (%" ( ( + % $
(& ( (% %$ -$%% + -$
%($ % ( - #+ '( $% %
H3I H 2I 2 (% +--$ ( %
-(%
G.4 Status Register, SRn
%% -(% ($% % ( %%
9 $ 9 '( $ %(
# %"
%'(&K $ %% ($ , (
% + C(& + '( + $ &
'(
# %% ($('% %+ ( $
%&%% $ % , ''3 $ % (+
%( (% & $. (% $& + $ +
, # %% ($('% % ($('
9 % ''" (' (% ((- $
& , " (% + $ (' + '((- &
''% ( %( $
'( # %% ($('% '$ (
( + %% -(%
( + %% -(% % % +
& $ '( % (+ + %
-(% $ $(%'%%( + ' ( +%4
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Received
Break
Framing
Error
Parity Error
Overrun
Error
TXEMT
TXRDY
FFULL
RXRDY
J8
JE%
J8
JE%
J8
JE%
J8
JE%
J8
JE%
J8
JE%
J8
JE%
J8
JE%
Table 19. The Bit Format of the Status Register’s SRA and SRB
SRn[7] Received Break
(% ( ($('% G '' +
-$ '' - % '($ (
% ( & %(- # %(( (% ''($
3 (% '($ $$(( %+% ( #
((($ ( 5 ( % 3(- % +
% + ( ( (% (% $+($ % %''%%(
$-% + ( ! ! ''3
A (% ( (% %" '.% H9802 #8 *27
I ( ( # (% % ( ( # (% % %
$ + 3 '$((" % $+($ " (%
$'$
'(.% 3 $' -(' ' $' 3% -(
( ($$ + '' 9" 3 %
%(% ( $ + ! '' ( ( $ + (
$'$
#+ $ + ' % %
H'I $" (% ( & (% ''
+ 9 (% ( ( '$ (+ 5
( (% - -(' H(-I " ( !
''
#+ H2I $ % % H*'3I $" (%
(" ' % ( ( %%$ ( H22
2 I '$ % (3$ %
% Table 2
SRn[6] Framing Error
(- '( + '' (%" $ &
%%'($ (& (" '( ( ''3 + H3I
'$(( (( +(- % $ (& (
(% H3I '$(( (% , ( #+ '( $%
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