Table 5-5. List of ROM Outputs (Stuff Codes)

T.O. 31W2-2GSC24-2

TM 11-5805-688-14-1

NAVELEX 0967-LP-545-3010

DATA WORD (BIT 0 POSITION)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

WORD

WC0

1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 01

COUNT

INPUTS:

WC1

0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1

WC3

0001111000011110000111100001111

WC4

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

STUFF

CODE

OUTPUTS:

PSC

Y1, Y4

1 1 0 0 1 1 1 0 1 0 11 1 1 1 1 0 1 1 0 1 0 1

NSC

Y2, Y5

1 1 0 0 0 0 0 1 0 1 0 1 1 1 0 0 1 0 1 1 0 1 0

NAC

Y3, Y6

0 0 1 1 0 0 0 0 1 0 1 0 0 0 1 1 0 1 0 1 0 1 0

5-335. Word 29 signal MW29 and end of-scan signal

that is receiving overhead service in the minor frame

MEOS2B enable AND gate U4-3 to produce the minor

being addressed at any given time.

frame transition signal MFT. Signal MFT clocks the

minor frame counter consisting of flip-flop U5 and binary

5-337. Gated Clock Generation Function.

counter U6. The minor frame counter is incremented by

signal MFT until the frame count 31. Signal MMF31, the

5-338. Channel address signals MCHADO through

terminal count from U6, is generated by the binary

MCHAD8 from the sequencer card contain the address

counter. Signal MFC1 is applied to minor frame activity

of the active channel selected to receive a gated clock

detector U1-6 in the composite error detector circuits for

signal. The channel address signals are applied at the

diagnostic purposes. Multiplexer minor frame count

multiplexer clock rate (MRIO) to the inputs of overhead

signals MMFCO through MMFC4 are routed to the seq

card. Minor frame terminal count signals MMF31A-,

selector U53. In normal operation, AND gate U12-6 in

MMF31B-, and MMF31Care distributed to channel card

the gated clock control circuit is inhibited by the absence

locations Al through A15 for use by the RCB cards.

of MPSE. This condition sets flip-flop U11 in the gated

clock add control circuit to generate an enable signal to

5-336. Minor frame count signals MFCO through MFC4

the C input of U53.

from minor frame counter U5, U6 are applied to

overhead data multiplexer U50 to identify the used port

5-89