Mitsubishi Motors DS5000TK - Manual (Page 132)

USER’S GUIDE
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INVOKING AND EXITING THE LOADER ON THE DS5001/DS5002 SERIES Figure 16–1
AUTOBAUD Routine:
Awaits input on 1 of 3 channels –
1) character on RXD of serial port
2) character written to RPC port
3) character received by 8250 UART
causing interrupt on INT1 pin (MODEM=1)
Power Up
Reset
CRC=1
PROG=0
ROM code calculates
CRC Fails
MODEM=1
ROM code initializes
CRC of program space
modem to allow for
call for help
Serial loader communications continue
on that established channel.
PROG
Transitions
0 to 1
“E” command
Power
Down
PROG=0
CRC=1
(when
enabled)
WDOG
Timeout
PROG
Transitions
1 to 0
Reset Part
Execute user
program
Y
N
N
Y
N
N
Y
Y
N
N
Y
Y
Y
N
N
N
Y
Y
Y
Y
N
N