Datasheet

Section 10 I/O Ports
Rev. 3.00 Mar 17, 2006 page 472 of 926
REJ09B0283-0300
10.7 Port 7
Port 7 is a 6-bit I/O port that also has other functions. The port 7 has the following registers. For
details on the port function control register 2, refer to section 10.3.5, Port Function Control
Register 2 (PFCR2).
• Port 7 data direction register (P7DDR)
• Port 7 data register (P7DR)
• Port 7 register (PORT7)
• Port function control register 2 (PFCR2)
10.7.1 Port 7 Data Direction Register (P7DDR)
The individual bits of P7DDR specify input or output for the pins of port 7.
P7DDR cannot be read; if it is, an undefined value will be read.
Bit Bit Name Initial Value R/W Description
7, 6 — All 0 — Reserved
These bits are always read as 0 and cannot be
modified.
5 P75DDR 0 W
4 P74DDR 0 W
3 P73DDR 0 W
2 P72DDR 0 W
1 P71DDR 0 W
0 P70DDR 0 W
When a pin function is specified to a general
purpose I/O, setting this bit to 1 makes the
corresponding port 1 pin an output pin, while
clearing this bit to 0 makes the pin an input pin.