Datasheet
DS1085 
  11 of 21 
Access RANGE [37h] 
If R/ W  is 1, the next data bytes read are the values stored in the RANGE register. This register has a 14-
bit value. The upper eight bits are sent first, followed by a second byte that contains the five LSBs of the 
register value in the most significant positions of the data byte. The upper five MSBs of the first byte 
contain the OS value for the frequency adjust Table 6. The register is read-only. 
Write E2 [3Fh] 
If WC = 0, the EEPROM is automatically written to at the end of each write command. This is a 
DEFAULT condition. In this case, the command “WRITE E2” is not needed. If WC = 1, the EEPROM is 
written when the “WRITE E2” command is issued. On receipt of the “WRITE E2” command, the 
contents of the DAC, OFFSET, ADDR, DIV, and MUX registers are written into the EEPROM, thus 
locking in the register settings. 
EXCEPTION: The DAC, OFFSET, ADDR, DIV, and MUX registers are always automatically written to 
EEPROM after a write to the ADDR register regardless of the value of the WC bit.










