参数资料
型号: XR82C684CJTR/44-F
厂商: Exar Corporation
文件页数: 65/107页
文件大小: 0K
描述: IC UART CMOS QUAD 44PLCC
标准包装: 500
特点: *
通道数: 4,QUART
FIFO's: 3 字节
电源电压: 5V
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 带卷 (TR)
XR82C684
.
Bit
6
Bit
5
Bit
4
C/T
Mode
Timing Source
5" $ $+
8 8 '6 *
%(
8) 8 '6 *
) %(
8-<= $ !(( & .
(
5" $ $+
(
5" $ $+# !((
& .
(
8-<= $
(
8-<= $ !(( & .
Note: The “shaded” options are only available in the 68 pin
PLCC.
Table 13. ACR1[6:4] Bit Field Definition - C/T#1
Bit
6
Bit
5
Bit
4
C/T
Mode
Timing Source
5" $ $+
8 8 '6 *
%(
8! 8 '6 *
! %(
8-<= $ !(( & .
(
5" $ $+
(
5" $ $+#
!(( & .
(
8-<= $
(
8-<= $ !(( & .
Note: The “shaded” options are only available in the 68 pin
PLCC.
Table 13A. ACR2[6:4] Bit Field Definition - C/T#2
" ( Sections D.3.1 D.3.2 ,(' & *%
-( - ; 3# (% " (%
-( D D I & E (#
(%('( % 3( 3 3 -%
D.3.1 Timer Mode:
Please note that of the two C/T Modes, the Timer Mode is
the only mode which is relevant to the function of Bit Rate
Selection.
However, for completeness, the Counter
Mode is also discussed below.
$ ( # - '% % ,
(( ,% %I 3 3 % ( (%
3(' ( ' '6 ( % * ' % *
-( ,(%%# < - '
% % , ( , (
' .8 ' '6 * & ( ( &
)2 %I3# (,((, * -D (%
+ (# +4 E%# %I3#
(,((, * -D (% + (# +
$* - (% ,
( ( #
*I'& * % (, - %I 3 '
"%% % * 3%7
- I'& L
Frequency of Selected Timing Source
T PCTURQT 0 + PCTLRQ
37 PQ L ' % * ,(% (
'( *
P<Q L ' % * < ,(% (
'( *
(' - (% % .8 ' '6 %(, &
'('(&# % (, ( (% -.
*I'& * - %(, * # (
# ( * - ' "%% % * 3%7
Frequency of Selected Timing Source
4 T PCTURQT0 + PCTLRQ
' % * < ,(%% &
', & (# 3( & ,( 6 **'
" * '&' * %I 3 - ,(%
( %(, % ( -< '( *
%%(,, / :51 '
Table 1
- % ' ( % & %%I /
:51 ' '%% - (
' ((, '&' ,( 3 ((, '&' %(,
' % % ( <
:5 5!H %% (# ( $ %
,(%% $P4Q $P4Q# (% % ' ' '&' *
%I 3 (% 3% % * - %
( (' ( , # (* ' (( (%
, , ( ( (
%6 ,(%% $ $ $P4Q -
$P4Q ' ' & (%%(, (
%%(,, /+ :51 '
Table 1
$ $5 # 3# '
% ' & % -
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