參數(shù)資料
型號(hào)： 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)： 35/107頁
文件大?。?/td> 2244K
代理商： XR82C684CJ
XR82C684
49
Op-Code (hex)
Mnemonic
Restart Address
(hex)
B
0
!B
!
4
0
5B
@
5
9
0
B
.
4
B
40
Table 7. 8080A and 8085 CPU Restart Instructions
Used with Vectored Interrupts
* # ' + '(% ' * *
% 5 (%'( %# ( 3( ,( "'(, (%
(%'( & (,
( /% %%1
' 3( ' /% %%1 '(
"#(* ' /5B
)%(, $:'&'#(% ' ' % %3(
/ @1 ' # + 3(
+ , , ' 3( '
'( ( & %
+ , 3(
*3%# ,
.
1(% !
.
(
Table 7
Interfacing the 8080 CPU Module to the XR82C684
QUART for Interrupt Processing
00 + ' ' ' 80.0@
( $ !(
'
'
80.0@
' ( '%%(,
only includes information pertaining to QUART interrupt
Figure 11
%%
( (*'(,
00 + * /"1
PleasenotethatFigure 11
servicing.
Generator,theAddressBus,etc.)havebeenomittedfrom
the schematic. In this schematic, the QUART Interrupt
Service Routine is located at 0020
16
in memory.
Additionally, the QUART has been configured to operate
in the I-Mode. The function description of this circuit is
presented below.
Other circuitry (such as the 8224 Clock
80.0@ 3( I%
+# & ,,(, (% $: / 31 (% %(, (%
( ( '((, $: ( *
+ ' 00 + % ' (% '
(%'( # ( 3( %% '( 3 $:%(, *
00 )(!('( )% !( (% (#
$: %(, *
$: %(,
* 00 ' ,(' / 31 $:
$: %(,% 3 ( ,
;'# 3 $: $: ,(' / 31#
* , 3( %
& %%(, * 5 5 (%
* :B@<@@ ! )% ** 4 (% /(,1 *
$: $:%(,%(%% (% &
( (' I%(, ( (%
'(%
%(' ,# % %(
$:%(, ' 5 (% * 4 %%#
# ( ( * (% (' 4 3( 3
* (% ('#
!B !
(% * 00 ('
example, the value “E7
16
” is hard-wired into the input of
U3. This value is the op-code for the “RST 4” command.
Hence, once this data is gated into the CPU module, via
the data bus, the CPU will load 0020
16
into its Program
Counter and branch program control to that location. The
Interrupt Service Routine for the QUART exists at this
location in memory.
( 00
,(' / 31#
%%
Please note that, in this
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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(píng)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(píng)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
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