Datasheet

Section 8 I/O Ports
Rev. 2.00 Aug. 20, 2008 Page 311 of 1198
REJ09B0403-0200
8.2.7 Port 7
Port 7 is an 8-bit input port. Port 7 pins can also function as the A/D converter analog input pins.
Port 7 has the following register.
• Port 7 input data register (P7PIN)
(1) Port 7 Input Data Register (P7PIN)
P7PIN indicates the states of the port 7 pins.
Bit Bit Name Initial Value R/W Description
7 P77PIN Undefined* R
6 P76PIN Undefined* R
5 P75PIN Undefined* R
4 P74PIN Undefined* R
3 P73PIN Undefined* R
2 P72PIN Undefined* R
1 P71PIN Undefined* R
0 P70PIN Undefined* R
When this register is read, the pin states are read.
Since this register is allocated to the same address as
PBDDR, writing to this register writes data to PBDDR
and the port B setting is changed.
Note: * The initial values are determined in accordance with the pin states of P77 to P70.