参数资料
型号: XR82C684J/44-F
厂商: Exar Corporation
文件页数: 22/107页
文件大小: 0K
描述: IC UART CMOS QUAD 44PLCC
标准包装: 27
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: 管件
其它名称: 1016-1572-5
XR82C684J/44-F-ND
XR82C684
% * ' * % ,(%%
*( 37
C.1 Interrupt Status Registers (ISR1 and ISR2)
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$% %6 $ % ,(%%
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ISR1 Register 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 #1
Ready
Delta Break
A
RXRDY/
FFULLA
TXRDYA
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
ISR2 Register 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/
FFULL D
TXRDY D
Counter #2
Ready
Delta Break
C
RXRDY/
FFULL C
TXRDY C
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
L :
L H%
*((( * (, ( ' * % (% (%
% 3
C.1.1 ISR1 Register - Channels A and B
ISR1[7]: Input Port Change of State:
$* (% ( (% ,(' /1# ', * % 3%
' $ + (% $+ $+4 % %('%
(% ( & (, $+ (* $PBQ L $PBQ (%
' 3 + % $ +
*(,( ,(% D $+ )& (, $+#
% 3( (7
$ + ( ', %
*( % * ( ( %# * 3(,
, *
( %'(( * $+# % %
Section E
Please note that in order to enable this Interrupt
Condition, the user must do two things:
1. Write the appropriate data to the lower nibble of the
Auxiliary Control Register, ACR1[3:0]. In this step, the
user is specifying which of the four Input Pins, IP0 - IP3,
should trigger an “Input Port Change” Interrupt request.
2. Write a logic “1” to IMR1[7].
ISR1[6] Delta Break Indicator - Channel B:
E (% ( (% %# ( (('% )
'( % ' ,((, * '(
6 ) (% ( (% ' % 3 +
( 6% ' ) /55 )5= ;:25
$:5+1 ' % Table 2
(* ( ( K% % % )5=
' (( # % % Section G.2
ISR1[5] RXRDY/FFULL B - Channel B Receiver
Ready or FIFO Full
*'( * (% ( (% % ' & ,(,
)P.Q $* (% ( *( (% ' *(, *'( %
'( & ((' 8!H)# /1 ( (%
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;) (% & & + (% ( (% %
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;) $* %( ''% ( ;) *
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/ 1
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$(' <<)# ( (% % 3 '' (%
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+ % ;). & / (,1 $#
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