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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
7
P77PIN
6
P76PIN
5
P75PIN
4
P74PIN
3
P73PIN
2
P72PIN
1
P71PIN
0
P70PIN
Note:
* The initial values are determined in accordance with the pin states of P77 to P70.
Initial Value
R/W
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Description
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.
Rev. 1.00 Mar. 12, 2008 Page 309 of 1178
Section 8 I/O Ports
REJ09B0403-0100
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