XR82C684CJ-F Datasheet, PDF (60/107 Pages) Exar Corporation – CMOS Quad Channel UART(QUART)

XR82C684
Bit Bit Bit C/T
6 5 4 Mode
Timing Source
  
  5"  $   $+




 
8
 8 
 '6 *
 
  %(




 
8
) 8 
 '6 *
 
)  %(
  
  8-
<= $  !(( & .
   ( 5"  $   $+



(
5"  $   $+# !((
& .
   ( 8-
<= $ 
   ( 8-
<= $  !(( & .
Note: The “shaded” options are only available in the 68 pin
PLCC.
Table 13. ACR1[6:4] Bit Field Definition - C/T#1
Bit Bit Bit
654
C/T
Mode
Timing Source
  
  5"  $   $+




 
8

8 
 '6 *
 

 %(




 
8
! 8 
 '6 *
 
!  %(
  
  8-
<= $  !(( & .
   ( 5"  $   $+

(
5"  $   $+#
!(( & .
   ( 8-
<= $ 
   ( 8-
<= $  !(( & .
Note: The “shaded” options are only available in the 68 pin
PLCC.
Table 13A. ACR2[6:4] Bit Field Definition - C/T#2
  " ( Sections D.3.1   D.3.2 , ('& *% 
 
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(%( '( % 3(   3   3
-%
D.3.1 Timer Mode:
Please note that of the two C/T Modes, the Timer Mode is
the only mode which is relevant to the function of Bit Rate
Selection. However, for completeness, the Counter
Mode is also discussed below.
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