Datasheet

Section 8 I/O Ports
Rev. 3.00 Mar 21, 2006 page 194 of 788
REJ09B0300-0300
8.8.1 Port 7 Input Data Register (P7PIN)
P7PIN reflects the pin states of port 7.
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 a P7PIN read is performed, the pin states
are always read. P7PIN has the same address as
PBDDR; if a write is performed, data will be
written into PBDDR and the port B setting will be
changed.
Note: * Determined by the pin states of P77 to P70.
8.8.2 Pin Functions
• P77/AN7/DA1
The pin function is switched as shown below according to the combination of the DAE bit in
DACR of the D/A converter and the DAOE1 bit.
DAOE1 0 1
DAE 0 1 —
P77 input pin DA1 input pin DA1 output pinPin Function
AN7 input pin
*
Note: * This pin can always be used as the AN7 input pin.
• P76/AN6/DA0
The pin function is switched as shown below according to the combination of the DAE bit in
DACR of the D/A converter and the DAOE0 bit.
DAOE0 0 1
DAE 0 1 —
P76 input pin DA0 output pin DA0 output pinPin Function
AN6 input pin
*
Note: * This pin can always be used as the AN6 input pin.