AD9547 datasheet(101/106 Pages) AD

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Data Sheet

AD9547

Table 158. EEPROM Storage Sequence for Operational Control Settings

Address

Bit

Bit Name

Description

0x0E2F

[7:0]

Operational controls

The default value of this register is 0x10, which the controller interprets as a data

instruction. Its decimal value is 16, this tells the controller to transfer 17 bytes of data

(16 + 1) beginning at the address specified by the next two bytes. The controller stores

0x10 in the EEPROM and increments the EEPROM address pointer.

0x0E30

[7:0]

Operational controls

The default value of these two registers is 0x0A00. Note that Register 0x0E30 and Register

0x0E31 are the most significant and least significant bytes of the target address,

respectively. Because the previous register contains a data instruction, these two

registers define a starting address (in this case, 0x0A00). The controller stores 0x0A00 in

the EEPROM and increments the EEPROM pointer by 2. It then transfers 17 bytes from

the register map (beginning at Address 0x0A00) to the EEPROM and increments the

EEPROM address pointer by 18 (17 data bytes and one checksum byte). The 17 bytes

transferred correspond to the operational controls parameters in the register map.

0x0E31

[7:0]

0x0E32

[7:0]

I/O update

The default value of this register is 0x80, which the controller interprets as an I/O

update instruction. The controller stores 0x80 in the EEPROM and increments the

EEPROM address pointer.

Table 159. EEPROM Storage Sequence for End of Data

Address

Bits

Bit Name

Description

0x0E33

[7:0]

End of data

The default value of this register is 0xFF, which the controller interprets as an end

instruction. The controller stores this instruction in the EEPROM, resets the EEPROM

address pointer, and enters an idle state.

0x0E34 to

0x0E3F

Continuation of user

scratch pad area

This area is unused in the default configuration and is available for additional EEPROM

storage sequence commands. Note that the EEPROM storage sequence should always

end with either an end of data or pause command.

Rev. G | Page 101 of 106

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