MB90560 Datasheet, PDF (576/581 Pages) Fujitsu Component Limited. – 16-BIT MICROCONTROLLER

s Pins used for Fujitsu standard serial on-board writing
Pin
MD2,MD1,
MD0
P00
RSTX
SIN
SOT
SCK
VCC
VSS
Function
Mode pin
Write program start
pin
Reset pin
Serial data input pin
Serial data output pin
Serial clock input pin
Power supply pin
Ground pin
Description
Used to enable write mode for the flash microcomputer programmer.
–
–
UART is used in clock synchronous mode.
If write voltage (5V±10%) is supplied from the user system, this pin need
not be connected to the flash microcomputer programmer. If the pin is
connected to the flash microcomputer programmer, do not connect it to the
power of the user system.
Used also as the ground pin for the flash microcomputer programmer.
Note: When the P00, SIN0, SOT0, and SCK0 pins are also used by the user system,
the control circuit shown below is required. (The /TICS signal of the flash
microcomputer programmer can separate the user circuit during serial writing.
See the connection example shown later.)
AF200
write control pin
10KΩ
AF200
/TICS pin
MB90F562
write control pin
User
552 APPENDIX D
MB90560 series