S3F84B8_UM_REV 1.00 9 I/O PORTS9-79.1.1.2 Port 1Port 1 is a 3-bit I/O port that you can use in two ways: General-purpose I/O Alternative functionPort 1 is accessed directly by writing or reading the port 1 data register, P1, at location E1H, Set1 Bank0.9.1.1.2.1 Port 1 Control Register (P1CON)Port 1 pins are configured by setting the control registers located at P1CON (E7H, Set1 Bank0).When you select the output mode, push-pull circuit can be configured. In the input mode, pull-up resistor can beconfigured as on or off. For alternative functions, different selections are available such as: Input mode Output mode (Push-pull) Alternative function: Timer A- TACK, TACAP Alternative function: Comparator-CMP0_N, CMP0_P, CMP1_N
