44404C.txt

PAL16R4
JLB 26NOV86
44404C,14D,CYIN1

CLK CSDELAY1 CSALUM1 CSALUM0 CSALUI8 CSALUI7 LBA3 LBA1 LBA0 GND
/OE /DLY1 /SLCOND /NC14 /NC15 /NC16 /NOWRIT /NC18 /RRF VCC

; CYCLE CONTROL INPUT GENERATOR. PART 1.

IF (VCC) DLY1 = CSDELAY1 * /LBA3 * LBA1 * LBAO      ; 2S5NS DELAY OF PREVIOUS CYC
              + RRF * SLCOND                        ; ON MICROCODE REQUEST IN AD
                                                    ; DLY0. NB.! MUST ALSO HAVE
                                                    ; OF LONG COMPUTATION TIME.
                                                    ; THIS DELAY 1S ONLY USED WH
                                                    ; IS USED
                                                    ; FOR ADDRESS COMPUTATION IN



NOWRIT := /CSALUM1 * /CSALUI8 * /CSALUI7
        + /CSALUM0 * /CSALUI8 * /CSALUI7

DESCRIPTION

CAN BE CHANGED TO 16R6 IF NEEDED

; 270487 M3202B
; 150687 JLB: DELAY ALSO WHEN WE ARE NOT WRITING TO B- OR X-REGISTER.
; (THEY CAN STILL BE USED FOR ADRESS COMPUTATION IN THE NEXT CYCLE !!!)
; 070987 C: DLY1 WHEN WE HAVE AN ALU CONDITION USED IN MICROBRANCHING COMBI
;           WITH IDBS REG IN THE PREVIOUS CYCLE.