XR82C684CJ-F View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XR82C684CJ-F

CMOS Quad Channel UART (QUART)

Exar Corporation 

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XR82C684

Address

(Hex)







4

@

9

.

B

0





)



!

5









4

@

9

.

B

0





)



!

5



Read Mode Registers

Write Mode Registers

Register Name

  ,(%#
 

% ,(%#
 

%6 $ % ,(% 

" ; (, ,(%#
 

$ + 
, ,(% 

$ % ,(% 

-(  )& ,(% 

-( < 3 )& ,(% 

  ,(%#
 )

% ,(%#
 )

55>5!

" ; (, ,(%#
 )

$ >'  ,(%

$ + 


-( 


 
-( 


  ,(%

% ,(%

%6 $ % ,(% 

" ; (, ,(%

$ + 
, ,(% 

$ % ,(% 

-( #  )& ,(%

-( # < 3 )& ,(%

  ,(% !

% ,(% !

55>5!

" ; (, ,(% !

$ >'  ,(% 

$ +  


-( 


 
-( 


Symbol

# 



$

;

$+


$



<

)# )

)



;)

$>

$+









# 



$

;

$+


$



<

!# !

!



;!

$>

$+








Register Name

  ,(%#
 

 '6 ' ,(%#
 

 ,(% 

" ; (, ,(%#
 

"((&
  ,(% 

$ %6 ,(% 

-(

 )& ,(% 

-( < 3 )& ,(%

  ,(%#
 )

 '6 ' ,(%#
 )

 ,(%#
 )

" ; (, ,(%#
 )

$ >'  ,(% 

 + 
*(,( ,(%

+  +B

  +  )(% 


  +  )(% 


  ,(%

 '6 ' ,(%

 ,(%

" ; (, ,(%

"((&
  ,(% 

$ %6 ,(% 

-( #  )& ,(%

-( # < 3 )& ,(%

  ,(% !

% ,(% !

 ,(% !

" ; (, ,(% !

$ >'  ,(% 

 + 
*(,( ,(% 

+0  +9

  +  )(% 


  +  )(% 


Symbol

# 





;




$



<

)# )

)

)

;)

$>

+


+)


+)



# 





;




$



<

!# !

!

!

;!

$>

+


+)


+)


Note: The shaded blocks are not Read/Write registers but are rather “Address-Triggered” Commands.

Table 1. Quart Port And Register Addressing

 

B

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