Specifications

154 EPSON S1C6P466 TECHNICAL MANUAL
APPENDIX A PROM PROGRAMMING
A.5 Flash EEPROM Programming Notes
(1) The programing voltage of the S1C6P466 PROM must be 5 V.
(2) Since PROM programming uses a 5-V power source, be careful of the voltage ratings of the parts on
the target board.
(3) Make sure that the READY LED on the S1C88/S1C63 Serial Connector or S1C6P466 Adapter Socket is
lit when connecting (mounting) or disconnecting (removing) the target board (S1C6P466).
(4) When performing serial programming using the Universal Writer, turn the power of the target board
off since the PROM programing power (5 V) is supplied from the Universal Writer.
(5) Make sure the personal computer is off before connecting or disconnecting the PROM Writer.
(6) After connecting the PROM Writer to the serial port of the personal computer, secure the RS-232C
cable with the connector screws.
(7) The QUIT command should be executed to terminate the Universal Writer Control Software.