I/O Bus

Function

ISCAS-85 Netlist numbers

A[8:0]

Highest priority input bus

1, 11, 24, 37, 50, 63, 76, 89, 102

B[8:0]

Middle priority input bus

8, 21, 34, 47, 60, 73, 86, 99, 112

C[8:0]

Lowest priority input bus

14, 27, 40, 53, 66, 79, 92, 105, 115

E[8:0]

Channel enable input bus

4, 17, 30, 43, 56, 69, 82, 95, 108

PA,PB,PC

Requesting bus output

223, 329, 370

Chan[3:0]

Requesting channel output

421, 430,  431, 432