Datasheet

Section 10 I/O Ports
Rev. 6.00 Mar. 18, 2010 Page 316 of 982
REJ09B0054-0600
10.2.2 Port 3 Data Register (P3DR)
P3DR stores output data for port 3 pins.
Bit Bit Name Initial Value R/W Description
7 — Undefined — Reserved
These bits are always read as undefined value.
6 P36DR 0 R/W
5 P35DR 0 R/W
4 P34DR 0 R/W
3 P33DR 0 R/W
2 P32DR 0 R/W
1 P31DR 0 R/W
Output data for a pin is stored when the pin is
specified as a general purpose output port.
0 P30DR 0 R/W
10.2.3 Port 3 Register (PORT3)
Bit Bit Name Initial Value R/W Description
7 — Undefined — Reserved
These bits are always read as undefined value.
6 P36 —
*
R
5 P35 —
*
R
4 P34 —
*
R
3 P33 —
*
R
2 P32 —
*
R
1 P31 —
*
R
If a port 3 read is performed while P3DDR bits are
set to 1, the P3DR values are read. If a port 3 read
is performed while P3DDR bits are cleared to 0,
the pin states are read.
0 P30 —
*
R
Note: * Determined by the states of pins P36 to P30.