Datasheet

Section 8 I/O Ports
Rev. 4.00 Jun 06, 2006 page 228 of 1004
REJ09B0301-0400
8.8 Port 7
8.8.1 Overview
Port 7 is an 8-bit input port. Port 7 pins also function as the A/D converter analog input pins (AN0
to AN7) and D/A converter analog output pins (DA0, DA1). Port 7 functions are the same in all
operating modes.
Figure 8.15 shows the port 7 pin configuration.
P77 (Input)/AN7 (Input)/DA1 (Output)
P76 (Input)/AN6 (Input)/DA0 (Output)
P75 (Input)/AN5 (Input)
P74 (Input)/AN4 (Input)
P73 (Input)/AN3 (Input)
P72 (Input)/AN2 (Input)
P71 (Input)/AN1 (Input)
P70 (Input)/AN0 (Input)
Port 7
Port 7 pins
Figure 8.15 Port 7 Pin Functions
8.8.2 Register Configuration
Table 8.16 shows the port 7 register configuration. Port 7 is an input-only port, and does not have
a data direction register or data register.
Table 8.16 Port 7 Registers
Name Abbreviation R/W Initial Value Address
*
Port 7 input data register P7PIN R Undefined H'FFBE
Note: * Lower 16 bits of the address.