参数资料
型号: XR82C684J-F
厂商: Exar Corporation
文件页数: 25/107页
文件大小: 0K
描述: IC UART CMOS QUAD 68PLCC
标准包装: 19
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: 68-LCC(J 形引线)
供应商设备封装: 68-PLCC
包装: 管件
XR82C684
@
* 3(, ( # ( 3( % ,( *
; (% / 1
$* (% ( *( (% ' *(, *'( % $ ; *
((' <<# (% (*( (% % 3 '' (%
%* * ; 3 &
%* '' '%% ; ' * (% (
(% ' 3 + % ; $* '' (%
3((, ( '% ; (% * # (% ( 3( %
,(# * 3(, ( # 3 '' (%
( ;
Note:
If this bit is configured to reflect the FFULLC
indicator, this bit will not be set (nor will produce an
interrupt request) if one or two characters are still
remaining in RHRC, following data reception. Hence, it is
possible that the last two characters in a string of data
(being received) could be lost due to this phenomenon.
Therefore, the user is advised to read RHRC until empty.
ISR2[0]: Channel C Transmitter Ready
(% ( (% (' * 8!H # PQ
(% (# 3 %# (('% ; (% & (%
& '' '' * + ( (%
' 3 + 3(% 3 '' ;.
(% % ,(# 3 '' (% %*
8!H (% % 3 %( (% ((( &
(% ' 3 %( (% (%
'% ( ; 3( %( (%
(% 3( %(
C.2 Interrupt Mask Registers (IMR1 and IMR2)
$ %6 ,(%% ' /E( &1
,(%% 3(' % % % ' ' (( %
3( '% (%% $ I%
'%% * # (* * $ (%
%%( & % % $
; 3# *
' %%# )( * $ $
% 3
IMR1 Bit Format
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Input Port
Change
Delta Break
B
RXRDY/
FFULLB
TXRDYB
Counter
Ready
Delta Break
A
RXRDY/
FFULLA
TXRDYA
L **
L
L **
L
L **
L
L **
L
L **
L
L **
L
L **
L
L **
L
IMR2 Bit Format
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Input Port
Change
Delta Break
D
RXRDY/
FFULLD
TXRDY D
Counter
Ready
Delta Break
C
RXRDY/
FFULLC
TXRDYC
L **
L
L **
L
L **
L
L **
L
L **
L
L **
L
L **
L
L **
L
$* % 3(%% '( (# -%
% 3( /1 ( 3(( $# ' % (,
$ (( <(63(%# (% %6
'( ' (( '%(, (# %
% 3( /1 ( '( ' % (,
' ((
Please note that the IMRs are Write Only Registers, and
can therefore not be read by the processor.
C.3 Masked Interrupt Status Register (MISR1 and
MISR2)
' * $ ,(% (% %(' & % %
* :!(, $ $ ,
$ L P$ %QP$ %Q
((( * $ (' (%
& (, $% (% (% 3(( $% '
,, /(,1 ( ' % (, ' (( %
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