HD6432633 Datasheet, PDF (518/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

10B.4.2 Register Configuration
Table 10B-6 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 10B-6 Port 4 Registers
Name
Abbreviation
Port 4 register
PORT4
Note: * Lower 16 bits of the address.
R/W Initial Value
R
Undefined
Address*
H'FFB3
Port 4 Register (PORT4): The pin states are always read when a port 4 read is performed.
Bit
:
7
6
5
4
3
2
1
0
P47
P46
P45
P44
P43
P42
P41
P40
Initial value : —*
—*
—*
—*
—*
—*
—*
—*
R/W
:
R
R
R
R
R
R
R
R
Note: * Determined by state of pins P47 to P40.
10B.4.3 Pin Functions
Port 4 pins function as A/D converter analog input pins (AN0 to AN7).
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