Samsung S3F401F - Manual (Page 150)

S3F401F_UM_REV1.00 I/O PORTS
8-1
8
I/O PORTS
1. OVERVIEW
S3F401F has 65 multiplexed input/output port pins. These are 3 port groups:
• Port 0 Group: 19 input/output ports, P0.0 ~ P0.18
• Port 1 Group: 31 input/output ports, P1.0 ~ P1.30
• Port 2 Group: 15 input/output ports, P2.0 ~ P2.14
Each port can be easily configured by software to meet the various configuration of target system and design
requirement. You should define the functionality of port before the start application program. If you do not want to
use the function for multiplexed pins, these pin can be configured as simple I/O port. For example the port 2 can
be used as analog input for ADC module or general input/output port.