Programming instructions

skips if the conversion is complete; i.e., the converter flag is a 1. The
program instructions, iot series 11, are:
asf - 701101 - Skip if the converter flag is a 1.
arb - 701112 - Read converter buffer and clear converter flag.
ase - 701104 - Start the converter and clear the converter flag.
701102 - A micro-instruction which clears the converter flag, and
C(converter buffer) V C(AC) => C(AC).
The converter flag might connect to the Program Interrupt.
I
m-m- :
PIG
12 BIT
ANALOG
TO-
DIGITAL
:ONVERTER
Analog
Input
Status Bits: None
Program hterrupt:
Convert Done Flag
Figure 14 - Slow-speed analog-to-digital converter programming logic
PERFORATED-TAPE READER
The Tape Reader senses 5-, 7-, or 8-hole perforated-paper (or Mylar) tape
photoelectrically at 300 characters (or lines) per second. The Reader con-
trol requests Reader movement, assembles data from the Reader into a
Reader Buffer (RB), and signals the computer when incoming data is
present. Reader tape movement is started by the Reader control request
to release the Reader brake and simultaneously engage the clutch.
In addition to the Reader movement control logic, the control unit contains
an 18-bit Reader Buffer (RB) which can collect one or three lines from the
tape. The C(RB) can be read into the AC. The Reader flag becomes a 1
when a character or word has been assembled in the RB.
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