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EPSON
S1C6P466 TECHNICAL MANUAL
APPENDIX A PROM PROGRAMMING
12 PROTECT command for parallel programming
Operation:
PROTECT
Description:
Sets the protect bit of the PROM in the S1C6P466 on the socket.
When the protect bit has been set, execution of all the commands except for ERSA are
disabled.
13 WRITE command (code PROM) for serial programming
Operation:
FWI [ _ / V ]
Option:
/V .................. Verifies data from the code PROM start address after writing.
Description:
The buffer RAM data in the PROM writer is written to the S1C6P466 code PROM on the
target board connected to the PROM writer. The accessed code PROM address is displayed
during writing.
Option specification should be done every time the command is executed.
Example:
FWI
...........
Writes data to the code PROM. Data is not verified.
14 WRITE command (data PROM) for serial programming
Operation:
FWC [ _ / V ]
Option:
/V .................. Verifies data from the data PROM start address after writing.
Description:
The buffer RAM data in the PROM writer is written to the S1C6P466 data PROM on the
target board connected to the PROM writer. The accessed data PROM address is displayed
during writing.
Option specification should be done every time the command is executed.
Example:
FWC
...........
Writes data to the data PROM. Data is not verified.
15 READ command (code PROM) for serial programming
Operation:
FRI [ _ / V ]
Option:
/V .................. Verifies data from the code PROM start address after reading.
Description:
The contents of the S1C6P466 code PROM on the target board connected to the PROM
writer are read to the buffer RAM in the PROM writer. The accessed code PROM address is
displayed during reading.
Option specification should be done every time the command is executed.
Example:
FRI
...........
Reads the contents of the code PROM to the buffer RAM in the PROM writer.
Data is not verified.
16 READ command (data PROM) for serial programming
Operation:
FRC [ _ / V ]
Option:
/V .................. Verifies data from the data PROM start address after reading.
Description:
The contents of the S1C6P466 data PROM on the target board connected to the PROM
writer are read to the buffer RAM in the PROM writer. The accessed data PROM address is
displayed during reading.
Option specification should be done every time the command is executed.
Example:
FRC
...........
Reads the contents of the data PROM to the buffer RAM in the PROM writer.
Data is not verified.