I/O Port Block Diagram - Fujitsu F2MC-16LX Hardware Manual

Mb90550a/b series, 16-bit

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I/O Port Block Diagram

Figure 7.2-1 to Figure 7.2-5 show the following I/O port block diagrams:

• Parallel port block diagram (Port 0 and Port 1)

• Parallel port block diagram (Port 2, Port 3, Port 7, Port 8, Port 9, and Port A)

• Parallel port block diagram (Port 4)

• Parallel port block diagram (Port 5)

• Parallel port block diagram (Port 6)

■ I/O Port Block Diagram

Figure 7.2-1 Parallel Port Block Diagram (Port 0 and Port 1)

Internal data bus

Data register read

Data register write

Data direction register write

Data direction register read

Input resistor register

Data register

Data direction register

7.2 I/O Port Block Diagram

Pull-up resistor