Serial Word Format; Serial Transmit Timing - Control Data Corporation INFORMATION SYSTEMS TERMINAL II Hardware Maintenance Manual

o
I START BIT (SPACE OR HIGH)
®
5,6,7, ORSOATA BITS (J=MARKOR LOW, O=SPACEORHIGH)
®
lOR NO PARITY BIT (EVEN OR 000)
®
I STOP BIT (MARK OR LOW)
Figure 4-9. Serial Word Format
Timing
03342
Figures 4-10 and 4-11 show the serial transmit and receive
timing respectively.
RESET
LOAD DATA
CHAR. REQUEST
RTS
CTS
SERIAL OUT
~~---------------
____
~n~
__
~n~
____________________ __
u
'---_ _ ..... 1
~f-tL.
__
1111111111111111111111
I
FIRST
• CHARACTER
I
SECOND
1
. . . CHARACTER
CD
RTS --CTS DELAY CONTROLLED BY DATA SET
03344
Figure 4-10. Serial Transmit Timing
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