参数资料
型号: XR68C681CP
厂商: Exar Corporation
文件页数: 6/75页
文件大小: 0K
描述: IC UART CMOS DUAL 40PDIP
产品变化通告: Leaded UART, V&I Obsolescence 11/Apr/2011
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
=
Table 1
($('% ' ' (% C($ (
H$ -(%%I %%'($ ( ' + % H$
-(%I (% (% H$ -(%I ( (
'(.%&% 22 ' ( (%
H((- I ' -(% ,%
%++(! HI (% %$ $ + & + % -(%
%&% ( $ +" -('&" ( '%
* 9" '% + ( ( %(+
+ $$%% + -(% +
-(%" ($(& +(- & $ ( ''%%
-(% ( ( '( H(
I -(% ( $ % ''%
( H22 ,#82I '$ %
(3$ H22 ,#82I '$ '
(%%$ & ((- ( $ (
'.% '$ -(% +" $
-(%%" (( -( '" % -('
$$%% +% $ +'(% +
'$ & $ -(%% $(%'%%$ (
$( ( Section G.3
B.2 COMMAND DECODING
2' ' (% C($ ( '$ -(% #
-" + % '$ -(%%
.$(% %(" .$(%
'(" - ( +'(((- %(% +
(%'% '$% ( + + '
'$ -(% (% %$
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Miscellaneous Commands
Enable/Disable Transmitter
Enable/Disable Receiver
(- !
J 8 -
J 2 !
J (% !
J 8 ;($
%
J 8 -
J 2 !
J (% !
J 8 ($
$ %
Table 2. Command Register - CRA, CRB
+'( + ( + '$ -(%% (% +(& %(-+$ (% ( (% %$ (
$(% %( $. '(
( + '$ -(% (% %$ (3 %(% + (%'% '$% Table 3
$+(% '$% %%'($ ( ( + '$ -(%% ,% (
'$% / - */ ++'% & +' + '$ -(%.% ' 9" '$% /
- / ++'% %&% '( (
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