參數(shù)資料
型號: XR82C684CJ
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: CMOS QUAD CHANNEL UART (QUART)
中文描述: 4 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC68
封裝: PLASTIC, LCC-68
文件頁數(shù): 67/107頁
文件大小: 2244K
代理商: XR82C684CJ
XR82C684
.B
E
% / K '1 * (& "%%(
%**(" % (& "%%( # "
9 E( 00
.
(% % %%
9 6%
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%( (
*
Table 14
Table 15
Example B: Programming the Bit Rate via the
Counter/Timer
% % 3(%% %( '(
.9 6% ( )
bitrateisnotofferedbytheBRG. Inthiscasetheusercan
do the following.
Please note that this particular
!( @ ;J < %(, ( 8-<= (# 3(
8 ( (% * * (,
E(
.
.
<
(% %% %% ( - D ,(, %I 3 *
*I'& L @ ;J-PQ L ;J
4 E( P.7@Q
(% 3( % -D ( ( # %'
((, % ' * - 8-<= (
@ E( !!
.
)
(% 3( %'(*&
%( * ) 3( ( * -D
Please note that when the QUART is programmed in this
configuration, the C/T output represents a 16X over
sampleoftheTransmittedandReceiveddata. Therefore,
the chip circuitry will divide the 1 MHz square wave by 16,
just like for clock signals originating from the BRG.
((, % ' * '(
Thus: Bit Rate = 1 MHz/16 = 62.5 kbps.
Example C: Using the External Input Ports
% # ( (( (, ) .9
6% % 5" )# -% 3% %(
'(
% (
% % * * %% % (
5" )# , 3( * 3(,7
E(
""""""
*(,( ,(%
+
+
(%% 3% ;J%I3 * -D
+4
Note:
x = don’t care
%**(" % (& "%%(
5"&' ' +4( $+4 $+@(%
& &(,
;J %I 3 ( % 3
( (%
4 E(
.
(% % 3( %'(*&
%( '( *
* ( (% $+4 $+@# %'(& (( &#
(% % 3
3 %
% ( %(, 8 %(,% ;'# (%
((%( &. * (% %(, * # ( *
(% %
Please note that if the user were to apply this example,
he/she would be responsible for ensuring that the
incoming serial data stream is synchronous with the 1
MHz (1X) clock signal; in order to minimize bit errors.
((, % ' *
3( (
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR82C684CJ/44 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS QUAD CHANNEL UART (QUART)
XR82C684CJ/44-0A-EB 功能描述:界面開發(fā)工具 Supports 82C684 44ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR82C684CJ/44-F 功能描述:UART 接口集成電路 0.5V-2V UART temp 0C to 70C RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR82C684CJ-0A-EVB 功能描述:界面開發(fā)工具 Supports 82C684 68ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR82C684CJ44 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC