YR0K42378FC000BA Renesas Electronics America, YR0K42378FC000BA Datasheet - Page 567

• Manufacturer Part Number: YR0K42378FC000BA
• Description: KIT EVAL FOR H8S/2378
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of YR0K42378FC000BA

• Contents: Board
• For Use With/related Products: H8S/2378
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

10.7
Port 8 is a 6-bit I/O port that also has other functions. The port 8 has the following registers.
• Port 8 data direction register (P8DDR)
• Port 8 data register (P8DR)
• Port 8 register (PORT8)
10.7.1
The individual bits of P8DDR specify input or output for the pins of port 8.
P8DDR cannot be read; if it is, an undefined value will be read.
Bit
7, 6
0
5
4
3
2
1
Bit Name
⎯
P85DDR
P84DDR
P83DDR
P82DDR
P81DDR
P80DDR
Port 8
Port 8 Data Direction Register (P8DDR)
Initial Value
0
0
0
0
0
0
0
R/W
⎯
W
W
W
W
W
W
Description
Reserved
These bits are always read as 0 and cannot be
modified.
When a pin function is specified to a general
purpose I/O, setting this bit to 1 makes the
corresponding port 1 pin an output pin, while
clearing this bit to 0 makes the pin an input pin.
Rev.7.00 Mar. 18, 2009 page 499 of 1136
Section 10 I/O Ports
REJ09B0109-0700