HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 383
HD6412320
Manufacturer Part Number
HD6412320
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412320.pdf
(1302 pages)
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9.2.2
Table 9.2 shows the port 1 register configuration.
Table 9.2
Name
Port 1 data direction register
Port 1 data register
Port 1 register
Note: * Lower 16 bits of the address.
Port 1 Data Direction Register (P1DDR)
P1DDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port 1. P1DDR cannot be read; if it is, an undefined value will be read.
Setting a P1DDR bit to 1 makes the corresponding port 1 pin an output pin, while clearing the bit
to 0 makes the pin an input pin.
P1DDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Bit
Initial value :
R/W
Register Configuration
Port 1 Registers
:
:
P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR
W
7
0
W
6
0
Abbreviation
P1DDR
P1DR
PORT1
W
5
0
W
4
0
R/W
W
R/W
R
Rev.6.00 Sep. 27, 2007 Page 353 of 1268
W
3
0
Initial Value
H'00
H'00
Undefined
W
2
0
Section 9 I/O Ports
REJ09B0220-0600
W
1
0
Address *
H'FEB0
H'FF60
H'FF50
W
0
0
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