8243 8048 Port expander. +--------------+ P5.0 |1 +--+ 24| VCC P4.0 |2 23| P5.1 P4.1 |3 22| P5.2 P4.2 |4 21| P5.3 P4.3 |5 20| P6.0 /CS |6 19| P6.1 PROG |7 8243 18| P6.2 P2.3 |8 17| P6.3 P2.2 |9 16| P7.3 P2.1 |10 15| P7.2 P2.0 |11 14| P7.1 GND |12 13| P7.0 +--------------+ [This information is part of the GIICM]