Configuration Of 8-Bit Serial I/O - Fujitsu F2MC-8L F202RA Hardware Manual

F2mc-8l 8-bit microcontroller

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Configuration of 8-Bit Serial I/O

Each 8-bit serial I/O channel consists of the following four blocks:

• Shift clock control circuit

• Shift clock counter

• Serial data register (SDR)

• Serial mode register (SMR)

Block Diagram of 8-bit Serial I/O

: Instruction cycle

Figure 14.2-1 Block Diagram of 8-bit Serial I/O

Internal data bus

Transfer direction

(Shift direction)

Serial data register (SDR)

Shift clock control circuit

Output buffer

Output buffer

Shift clock selection

Shift clock counter

CHAPTER 14 8-BIT SERIAL I/O

Serial mode register (SMR)

Interrupt request

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F2mc-8l mb89202 Mb89202/f202ra series