Port 4 Registers - Fujitsu F2MC-8FX Hardware Manual

9.4.1

Port 4 Registers

This section describes the port 4 registers.
Port 4 Register Function
"Table 9.4-2 Port 4 Register Function" lists the port 4 register functions.
Table 9.4-2 Port 4 Register Function
Register
Data
name
0
PDR4
1
0
DDR4
1
0
ILSR2
1
Table 9.4-3 lists the correspondence between port 4 pins and each register bit.
Table 9.4-3 Correspondence Between Registers and Pins for Port 4
Pin name -
PDR4
-
DDR4
ILSR2
-
Read
Pin state is "L" level.
Pin state is "H" level.
Correspondence between related register bits and pins
- -
- -
- -
Read read-modify-write
PDR value is "0".
PDR value is "1".
Port input enabled
Port output enabled
Hysteresis input level
Automotive input level
- P43 P42
- bit3 bit2
- bit3 bit3
CHAPTER 9 I/O PORT
Write
As output port, outputs
"L" level.
As output port, outputs
"H" level.
P41 P40
bit1 bit0
bit3 bit3
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