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Table 2-6.
CE Panel Indicators (Part 1 of 8)
Indicator
Roller A
lAST OSC REG
STROBE COUNT REG
TSM (Transmit) BIT
REG
CONTROL FIELD REG
BIT SVC (Bit Service)
REG
DATA BIT REG
LINE ADAPTER
STATUS REG
CE TEST
OFF LINE
STOR TEST
ClK (Clock) CHECK
WR (Write) BUS
2-18
Definition
One indicator (A-l-2). The last Osc (last Oscillator Sample) Register contains the
state of the line oscillator at the last readout of this Base Control Word (BCW) from
the delay line.
Four indicators (A-l-3 to A-l-6). The Strobe Count Register is incremented each
change of the last Osc bit when the line is transmitting or receiving.
One indicator (A-l-7). The Transmit Bit Register indicator is ON when the line is in
transmit mode, and OFF when in receive mode.
Two indicators (A-l-8 and A-l-9). The Control Field Register contains encoded infor-
mation which, along with the Transmit Bit Register, defines the mode the base section
of the 2703 is operating in.
One indicator (A-l-lO). This register indicates in a transmit operation that the line
base has transmitted a bit and it needs service from MCW-l for the next bit to be
transmitted. In a receive operation it indicates the line has been sampled and the
sampled bit is held in the Data Bit Register waiting for transfer to MCW-l .
One indicator (A-l-ll). The Data Bit Register contains the bit received or the bit
to be transmitted.
Five indicators (A-l-l2 to A-l-l6).
Receive Data, Send Data, and Enable indicators
are line-adapter-status indicators. Data Set Ready and Clear to Send are data-set-
status indications.
NOTE: Indicator-positions 22 through 34 are identical on all roller positions of Roller A.
This is denoted by an N for the roller position in the indicator-designation number.
One amber indicator (A-N-22). This indicator indicates that the CE TEST switch is
in the up or CE TEST
positi~n.
One green indicator (A-N-23). This indicator is turned ON when the 2703 is in an
off-line status as initiated by putting the METER switch on the operator panel to the
OFF position, for the POWER CONTROL switch to the DRIVER DEGATE position.
One amber indicator (A-N-24). This indicator is turned ON by initiating a storage
test with the CONTINUOUS lOAD switch and is turned OFF by ending a storage test
with the MACHINE RESET pushbutton.
One red indicator (A-N-25). This indicator is turned ON when an error is detected
in the master clock or cycle counter. It is reset by the MACHINE RESET pushbutton.
One red indicator (A-N-27). This indicator is turned ON if the parity of the write-
bus data changes during a core-storage write cycle.
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