PAL20L8
ICP16_new_pal_U85
VME BUS ADDRESS DECODER
INTEGRATED SOLUTION INC., SAN JOSE, CA
/VMEA31 /VMEA30 /VMEA29 /VMEA28 /VMEA27 /VMEA26 /VMEA25 /VMEA24 VMEA23
VMEA22 VAM3 GND VAM5 VMEA21 /CASCADE_OUT VAM_SEL ADR_SEL VIACK VAM2
VAM1 VAM0 SHORT_I_O VAM4 VCC

/CASCADE_OUT =
VMEA23*VMEA22*VMEA21*ADR_SEL*/VIACK*VAM5*VAM4*VAM3*/VAM2*/VAM1*
VAM0*VAM_SEL +
VMEA23*VMEA22*/VMEA21*/ADR_SEL*/VIACK*VAM5*VAM4*VAM3*/VAM2*/VAM1*
VAM0*VAM_SEL +
VAM5*/VAM4*VAM3*/VAM2*/VAM1*VAM0*/VAM_SEL*/VIACK

DESCRIPTION
Equation 1 requires a VME address of FFFxxx H and an address modifier
of 39 H. ( NO jumpers are required. )
Equation 2 requires a VME address of DFFxxx H and an address modifier
of 39 H. ( Insert jumper E14. )
Equation 3 requires an address modifier of 29 H. ( Insert jumper E15. )
	Address modifier of 39 H = standard non-privileged data access
	Address modifier of 29 H = short non-privileged access
This version of the U85 PAL is currently used by MIPS computer ONLY.
