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CONFIDENTIAL – DO NOT COPY
Page 7-48
File No. SG-0198
Mode Register Operation
Operating Mode
The normal operating mode is selected by issuing a Mode Register Set Command with bits A7-A12
to zero, and bits A0-A6 set to the desired values. A DLL reset is initiated by issuing a Mode Register
Set command with bits A7 and A9-A12 each set to zero, bit A8 set to one, and bits A0-A6 set to the
desired values. A Mode Register Set command issued to reset the DLL should always be followed
by a Mode Register Set command to select normal operating mode.
All other combinations of values for A7-A12 are reserved for future use and/or test modes. Test
modes and reserved states should not be used as unknown operation or incompatibility with future
versions may result.