参数资料
型号: XR68C681CP
厂商: Exar Corporation
文件页数: 7/75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
6
Bit 7
Bit 6
Bit 5
Bit 4
Description
Null Command:
Reset MRn Pointer:
%% '.% ( (
Reset Receiver:
%% ($(($ ' '( % (+ $ % %
($ '( (% $(%$ $ # (% +%$
Reset Transmitte
4 %% ($(($ ' %( % (+ $ %
$ ($ 5 (% +'$ (-
Reset Error Status:
% '($ *3 *" ,(& 2 ,2" (-
2 2 $ 2 2 %% (%" M@41N
'(+('&" (+ $" + (' ' (% % H*'3I $"
(% '$ ( % + '( ($('% ( %% -(%
# '3 $" ' ( ,2" 2" 2 * ''%" (% ( '
( +--$ ( ' %% -(%" ( (% '$ (% (%%$
#+ 2 $" + (' ' (% % H'I 2 $"
'% + % -(% + ,2" 2 $ * +'$ '' &
'' %(' # H'I 2 $" % + % ($('% (%
%$ & '' (% + 9
2 ($(' (% &% +--$ % H*'3I 2 $ ($('" $ C(%
(% '$ %
Reset Break Change Interrupt:
% '.% 3 '- ( %%
(
Start Break:
'% 5 %( % $ %
3 #+ %( (% &" % + 3 & $&$
( (% #+ %( (% '(" 3 -(% %(%%( +
% ''% ( 9 (% '$" (G" 52, % +
3 ( -(
Stop Break:
5 ( ( - (- (( ( (% 5 ( ( (-
+ ( ( + ! ''" (+ &" (% %($
Set Rx BRG Select Extend Bit:
% '.% H'( *0 ' 2!$
*(I HI - !J
Clear Rx BRG Select Extend Bit:
% '.% H'( *0 '
2!$ *(I - !J
Set Tx BRG Select Extend Bit:
% '.% H%( *0 ' 2!
$ *(I HI
Clear Tx BRG Select Extend Bit:
% '.% H%( *0
' 2!$ *(I HI
Set Standby Mode (Channel A):
A (% '$ (% (3$ ( '
'$ -(%" (% $ + ' + %(%" '(%"
.( $ $$(( '('(% ' ( %$&
$ ,% (% '$ ++'% ( + (
'( 8 ( (% %$ & $ % & (3(- H2
#;2 2I '$
Set Active Mode (Channel A):
A (% '$ (% (3$ ( '
'$ -(%" (% $ + %$& $ $ %%
(
Reserved
Reserved
Table 3. Miscellaneous Commands, Upper Nibble of all Command Registers, Unless Otherwise Specified.
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