H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 376

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 9 I/O Ports
Port 2 Register (PORT2)
PORT2 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port 2 pins (P2
If a port 2 read is performed while P2DDR bits are set to 1, the P2DR values are read. If a port 2
read is performed while P2DDR bits are cleared to 0, the pin states are read.
After a power-on reset and in hardware standby mode, PORT2 contents are determined by the pin
states, as P2DDR and P2DR are initialized. PORT2 retains its prior state after a manual reset, and
in software standby mode.
Rev. 3.00 Sep 15, 2006 page 342 of 988
REJ09B0330-0300
Bit
Initial value
R/W
Note: * Determined by state of pins P2
:
:
:
P27
—*
R
7
P26
—*
R
6
7
to P2
P25
—*
0
R
5
) must always be performed on P2DR.
7
to P2
0
.
P24
—*
R
4
P23
—*
R
3
P22
—*
R
2
P21
—*
R
1
P20
—*
R
0