XR82C684CJ-F Datasheet, PDF (75/107 Pages) Exar Corporation – CMOS Quad Channel UART(QUART)

$ (( +PB7Q
11111111
! )%# !B  !
11110000
XR82C684
 *  +  +( % +9  +0
00000000
!  %% 
(  +PB7Q
00001111
11110000
Figure 39A. Illustration of the “Clear Output Port Bit #2” Command and Its Effect on
Output Port Register 2 and the State of the Output Port Pins
F.2 Output Port Configuration Registers (OPCR1 and OPCR2)
   +  ( % '  % % 2  + %  ( %#   & '  ' *(,  % (  
* '( % Table 22 (%%      '( % * ' *    +  ( %
Output Port
+
+
+
+4
+@
+9
+.
+B
+0
+
Alternate Function(s)
-RTSA: I%     * 
   : 7  (%  (% '( < 3 *    
* '( 
-RTSB: I%     * 
  ) : 7  (%  (% '( < 3 *    
* '( 
TXCA_16X Output:
   .8  %(
 '6 7
TXCA_1X Output:
   8  %(
 '6 
RXCA_1X: Output:
   8 '(
 '6 
TXCB_1X Output:
  ) 8  %(
 '6 7
RXCB_1X Output:
  ) 8 '(
 '6 
C/T1_RDY:  
 -( &  * 
- D : 7  (%  (%   !( 
3  % %  
 -( & 
RXRDY/-FFULL_A Output:
   '( &-$  $ ('  : 7  (% (%   
!( # '( 3  *    8!H- <<G * '( 
RXRDY/-FFULL_B Output:
  ) '( &-$  $ ('  : 7  (% (%   
!( # '( 3  *    8!H- <<G) * '( 
-TXRDY_A Output:
    %( & $ ('   (% (%   !( # '( 3 
*    8!HG * '( 
-TXRDY_B Output:
  )  %( & $ ('   (% (%   !( # '( 3 
*    8!HG) * '( 
-RTSC: I%     * 
 
 Note: This output is an Open-Drain, Active Low
signal for the RTS function.
-RTSD7 I%     * 
  ! Note: This output is an Open-Drain, Active Low
signal for the RTS function.
 
B9