Fujitsu FR60 Hardware Manual page 523

CHAPTER 19 PROGRAM LOADER MODE (SUPPORTED ONLY BY THE MB91302A (IPL INTEGRATED MODEL))
■ Flowcharts
❍ Main program flowchart
MAIN
* About setting UART1
For asynchronous communication
Asynchronous mode(using internal timer)
Baud rate of 9600 bps ( At 17.0MHz crystal oscillator )
Data length of 8 bits
Stop bit of 1 bit
No parity
For synchronous communication
Synchronous mode(using external clock)
Data length of 8 bits
No parity
START
SIN=L ?
Synchronous
Asynchronous
communication
Set the gear ( CPU:13.5MHz / Peripheral:13.5MHz )
Set UART1 *
Receive command
DOWN LOAD
NO
YES
Synchronous
00
H
Received command = ?
(DOWN LOAD)
C0
H
Jump to RAM
Asynchronous
communication
other than 00 /C0
H H
Command error
503