H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 416
H8S-2350
Manufacturer Part Number
H8S-2350
Description
16-Bit Single-Chip Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.H8S-2350.pdf
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Section 9 I/O Ports
9.10.2
Table 9.17 shows the port C register configuration.
Table 9.17 Port C Registers
Note:
Port C Data Direction Register (PCDDR) [H8S/2351 Only]
PCDDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port C. PCDDR cannot be read; if it is, an undefined value will be read.
PCDDR 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. The OPE bit in SBYCR is used to
select whether the address output pins retain their output state or become high-impedance when a
transition is made to software standby mode.
Rev. 3.00 Sep 15, 2006 page 382 of 988
REJ09B0330-0300
Name
Port C data direction register
Port C data register
Port C register
Port C MOS pull-up control register
Bit
Initial value
R/W
Modes 1, 4, and 5
The corresponding port C pins are address outputs irrespective of the value of the PCDDR bits.
Modes 2 and 6
Setting a PCDDR bit to 1 makes the corresponding port C pin an address output, while
clearing the bit to 0 makes the pin an input port.
Modes 3 and 7
Setting a PCDDR bit to 1 makes the corresponding port C pin an output port, while clearing
the bit to 0 makes the pin an input port.
* Lower 16 bits of the address.
Register Configuration [H8S/2351 Only]
:
:
:
PC7DDR
W
7
0
PC6DDR
W
6
0
PC5DDR
PCDDR
PCDR
PCPCR
Abbreviation
PORTC
W
5
0
PC4DDR
W
4
0
R/W
W
R/W
R
R/W
PC3DDR
W
3
0
Initial Value
H'00
H'00
Undefined
H'00
PC2DDR
W
2
0
PC1DDR
W
1
0
H'FF5B
H'FF72
Address *
H'FEBB
H'FF6B
PC0DDR
W
0
0
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