HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 276

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 I/O Ports
8.5
8.5.1
Port 4 is an 8-bit input-only port. Port 4 pins also function as A/D converter analog input pins
(AN0 to AN3). Port 4 pin functions are the same in all operating modes. Figure 8.4 shows the port
4 pin configuration.
8.5.2
Table 8.8 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 8.8
Name
Port 4 register
Note:
Rev.3.00 Mar. 26, 2007 Page 234 of 772
REJ09B0355-0300
* Lower 16 bits of the address.
Port 4
Overview
Register Configuration
Port 4 Registers
Figure 8.4 Port 4 Pin Functions
Port 4
Abbreviation
PORT4
Port 4 pins
P4
P4
P4
P4
3
2
1
0
(input)/
(input)/
(input)/
(input)/
R/W
R
AN3
AN2
AN1
AN0
(input)
(input)
(input)
(input)
Initial Value
Undefined
Address*
H'FF53