h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 231

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

9.4
Port 4 is an 8-bit input-only port. Port 4 pins also function as A/D converter analog input pins.
Port 4 pin functions are the same in all operating modes.
• Port 4 Register (PORT4)
9.4.1
PORT4 is a read-only register that shows the pin states.
Note:
9.4.2
Port 4 pins also function as A/D converter analog input pins.
Bit
7
6
5
4
3
2
1
0
*
Port 4
Port 4 Register (PORT4)
Pin Functions
Bit Name
P47
P46
P45
P44
P43
P42
P41
P40
Determined by state of pins P47 to P40.
Initial
Value
*
*
*
*
*
*
*
*
R/W
R
R
R
R
R
R
R
R
Description
The pin states are always read when PORT4 read is
performed.
Rev. 2.00 Dec. 05, 2005 Page 193 of 724
Section 9 I/O Ports
REJ09B0200-0200