XR16M890IL32-0C Datasheet, PDF (54/63 Pages) Exar Corporation – UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS

XR16M890
UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
FIGURE 18. CLOCK TIMING
CLK
CLK
EXTERNAL
CLOCK
OSC
REV. 1.0.0
FIGURE 19. MODEM INPUT/OUTPUT TIMING
IO W #
IO W
RTS#
DTR#
A c tiv e
C h an ge o f state
T _{W DO}
C h a n g e o f sta te
CD#
CTS#
DSR#
IN T
IO R #
R I#
T _MOD
C h a n g e o f sta te
A c tive
A c tiv e
C ha n ge o f state
T _RSI
T _MOD
A c tiv e
A c tiv e
A c tiv e
A c tive
T_MOD
C ha n ge o f state
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