HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 268

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 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 Mar. 26, 2007 Page 226 of 772
REJ09B0355-0300
Bit
Initial value
R/W
Note: * Determined by state of pins P2
:
:
:
P27
—*
R
7
P26
—*
R
6
7
to P2
P25
—*
0
) must always be performed on P2DR.
R
5
7
to P2
0
P24
.
—*
R
4
P23
—*
R
3
P22
—*
R
2
P21
—*
R
1
P20
—*
R
0