MA28155 Datasheet, PDF (9/20 Pages) Dynex Semiconductor – Radiation Hard Programmable Peripheral Interface

Combinations of Mode 1
Port A and Port B can be individually defined as input or
output in Mode 1 to support a wide variety of strobed l/O
applications.
MA28155
STB_AN
OBF_AN
ACK_AN
PC_4,5
DSN
RD/WN
OBF_BN
ACK_BN
DSN
RD/WN
STB_BN
Figure 13: PORT A (STROBED INPUT)
PORT B (STROBED OUTPUT)
Figure 14: PORT A (STROBED OUTPUT)
PORT B (STROBED INPUT)
9/20