Fujitsu MB90420/5 (A) Series Hardware Manual page 549

MB90420/5 (A) SERIES F
• Even if the SIN1, SOT1, and SCK1 pins are used for the user system, the control circuit shown in the
figure below is required.
disconnect the user circuit during serial writing.
• Connect the AF200 while the user power is off.
AF220/AF210/AF110
write control pin
AF220/AF210/AF110
2
MC-16LX FAMILY 16-BIT MICROCONTROLLERS HARDWARE MANUAL
The /TICS signal of the flash microcontroller programmer can be used to
10 KΩ
/TICS pin
MB90F428/A
Write control pin
User
26-10