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CONFIDENTIAL – DO NOT COPY
Page 8-41
File No. SG-0184
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.