HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 410

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 9 I/O Ports
9.5.2
Table 9.8 shows the port 4 register configuration. Port 4 is an input-only port, and does not have a
data direction register or data register.
Table 9.8
Name
Port 4 register
Note: * Lower 16 bits of the address.
Port 4 Register (PORT4): The pin states are always read when a port 4 read is performed.
Note: * Determined by state of pins P4
9.5.3
Port 4 pins also function as A/D converter analog input pins (AN
analog output pins (DA
Rev.6.00 Sep. 27, 2007 Page 380 of 1268
REJ09B0220-0600
Bit
Initial value :
R/W
Pin Functions
Register Configuration
Port 4 Register
:
:
P47
— *
R
7
0
and DA
P46
— *
R
6
1
).
Abbreviation
PORT4
7
to P4
P45
— *
R
5
0
.
P44
— *
R
4
R/W
R
P43
— *
R
3
Initial Value
Undefined
0
to AN
P42
— *
R
7
2
) and D/A converter
P41
— *
R
1
Address *
H'FF53
P40
— *
R
0