HD64F2357F20V Datasheet, PDF (310/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

P2DDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual
reset*, and in software standby mode. As the PPG, TPU, and 8-bit timer are initialized by a manual reset*, the pin states
are determined by the P2DDR and P2DR specifications.
Note: * Manual reset is only supported in the H8S/2357 ZTAT.
Port 2 Data Register (P2DR)
Bit
:
Initial value :
R/W
:
7
P27DR
0
R/W
6
P26DR
0
R/W
5
P25DR
0
R/W
4
P24DR
0
R/W
3
P23DR
0
R/W
2
P22DR
0
R/W
1
P21DR
0
R/W
0
P20DR
0
R/W
P2DR is an 8-bit readable/writable register that stores output data for the port 2 pins (P2₇ to P2₀).
P2DR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual
reset*, and in software standby mode.
Note: * Manual reset is only supported in the H8S/2357 ZTAT.
Port 2 Register (PORT2)
Bit
:
7
6
5
4
3
2
1
0
P27
P26
P25
P24
P23
P22
P21
P20
Initial value : —*
—*
—*
—*
—*
—*
—*
—*
R/W
:
R
R
R
R
R
R
R
R
Note: * Determined by state of pins P2₇ to P2₀.
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 (P2₇ to P2₀) must always be performed on P2DR.
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.
Note: * Manual reset is only supported in the H8S/2357 ZTAT.
Rev.6.00 Oct.28.2004 page 280 of 1016
REJ09B0138-0600H