
S1C6F567 TECHNICAL MANUAL
EPSON
185
APPENDIX: PROM PROGRAMMING
(7) Mounting the S1C6F567
Mount the IC as the figure below.
1 pin
S5U1C6F567X11
READY
S1C6F567
Note: Be aware that the IC may be damaged if parallel
programming is performed by installing the IC to the
S1C6F567 Adapter Socket in the wrong direction.
(8) Erasing PROM
Clear (erase) the contents of the PROM (code PROM and data PROM) and perform erase check using
the following command.
63F567:ERSA /E
"ERASE COMPLETED" is displayed when erasing has finished normally.
In a sample chip in which the PROM has not been protected, the code PROM and data PROM can be
erased individually using the ERSI and ERSC commands, respectively. Refer to Section A.5.2, "De-
tailed description of the Universal ROM Writer II commands", for details.
Notes: Inspection data is written to the PROM at shipment, so erase it once to initialize the contents.
The PROM is protected when user data is written at Seiko Epson's factory. The protection is
released after the contents have been erased by the ERSA command.
(9) Writing user data
Write code PROM data and verify the written data using the following command.
63F567:WI /V
"WRITE COMPLETED" is displayed when writing has finished normally.
Then, write data PROM data and verify the written data using the following command.
63F567:WC /V
"WRITE COMPLETED" is displayed when writing has finished normally.
(10) Removing the S1C6F567
Remove the S1C6F567 after checking that writing has finished normally. To continue writing, repeat
from step (7) to step (10).
Note: Do not remove the S1C6F567 when the READY LED on the S1C6F567 Adapter Socket is not lit to
prevent destruction.
(11) Terminating the Control Software
Execute the QUIT command to terminate the control software.
63F567:Q
Note: Restarting the control software after it has been terminated without the QUIT command, for
instance the MS-DOS prompt window is closed, may cause an error such as "RAM CLEAR
ERROR". In this case, turn the Universal Writer off once and then turn on before starting up the
control software.
(12) Power off
Turn the Universal Writer off (POWER SW is located at the side panel) then the personal computer.