Fujitsu F2MC-16LX Hardware Manual page 394

Mb90550a/b series, 16-bit

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CHAPTER 24 EXAMPLE OF MB90F553A SERIAL PROGRAMMING CONNECTION

As with the case in which the P00 pin is also used, the following control circuit is required

when the SIN, SOT, and SCK pins are also used by the user system. (The user circuit can

be disconnected by the /TICS signal of the flash microcontroller programmer during serial

programming.)

Connect the AF220/AF210/AF120/AF110, turning the user power supply off.

When programming power supply is supplied from the AF220/AF210/AF120/AF110, be sure

not to connect the power supply pin with the user power supply circuit.

AF220/AF210/

AF220/AF210/