Send mode select command.

A

If it won’t fit, put the attach packet parameters offset into the error field in the command table (byte offset $72), and return a command error status in the user packet.

Send mode select command.

Mode sense for FORMAT PARAMETER PAGE 4 current values.

If no illegal request error

Mode sense for page 4 changeable values.

If any of the previous mode sense commands returned a "Illegal Request" error status, this next step is skipped (mode sense and mode select are optional). If the previous commands were successful, a mode select command and parameter list is prepared.

If the attach packet value does not match the mode sense value, and if the changeable value is not zero (some bits are changeable), try to put the attach packet value into the field using the changeable mask.

If it won’t fit, put the attach packet parameters offset into the error field in the command table (byte offset $72), and return a command error status in the user packet.

in -2 Send mode select command.

Mode sense for FORMAT PARAMETER PAGE 1 current values.

If no illegal request error

Mode sense for page 1 changeable values.

If any of the previous mode sense commands returned a "Illegal Request" error status, this next step is skipped (mode sense and mode select are optional). If the previous commands were successful, a mode select command and parameter list is prepared.

If the attach packet retry count is zero (diagnostic mode), and if the changeable value is not zero (some bits are changeable), try to disable corrections, and set retry count to 0 using the changeable mask.

If it won’t fit, put the attach packets parameters offset into the error field in the command table (byte offset $72), and return a command error status in the user packet.

Send mode select command.

A-5

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Emerson MVME147 manual Send mode select command