User`s manual

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(2) Write mode
To enable/disable writing data to the JW300 from the host computer, set write mode (0, 1, 2) using
the EWR (select write mode) command.
Write mode of JW300 are "mode 0" (write prohibited for all memories) at power ON. Prior to writing
into the JW300, change write mode to "mode 1" or "mode 2" using EWR command (setting of write
mode).
• SWE command read out current status of writing mode.
• Set write mode to "mode 0" as much as possible, except when writing data into JW300. Each
mode has restrictions as follow:
Note
• Turn OFF control module (JW-3**CU) protect switch (write allowed) before executing write
commands and change to "mode 2" using EWR command.
Write mode
Mode 0
Mode 1
Mode 2
Write prohibited for all memories
Write enable only for data memory
Write enable for all memories
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