AD9559PCBZ datasheet(114/120 Pages) AD

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AD9559

Data Sheet

Rev. 0 | Page 114 of 120

Table 181. EEPROM Storage Sequence for System Clock Settings

Address

Bits

Bit Name

Description

0x0E17

[7:0]

System clock

The default value of this register is 0x07, which is a data instruction. Its decimal value is 7, which

tells the controller to transfer eight bytes of data (7 + 1), beginning at the address specified by the

next two bytes. The controller stores 0x07 in the EEPROM and increments the EEPROM address pointer.

0x0E18

[7:0]

The default value of these two registers is 0x0200. Because the previous register contains a data

instruction, these two registers define a starting address (in this case, 0x0200). The controller stores

0x0200 in the EEPROM and increments the EEPROM pointer by 2. It then transfers eight bytes from

the register map (beginning at Address 0x0200) to the EEPROM and increments the EEPROM

address pointer by 9 (eight data bytes and one checksum byte). The eight bytes transferred

correspond to the system clock settings in the register map.

0x0E19

[7:0]

0x0E1A

[7:0]

IO_UPDATE

The default value of this register is 0x80, which the controller interprets as an IO_UPDATE instruction.

The controller stores 0x80 in the EEPROM and increments the EEPROM address pointer.

Table 182. EEPROM Storage Sequence for Reference Input Settings

Address

Bits

Bit Name

Description

0x0E1B

[7:0]

REFA

The default value of this register is 0x1A, which is a data instruction. Its decimal value is 26, which

tells the controller to transfer 27 bytes of data (26 + 1), beginning at the address specified by the

next two bytes. The controller stores 0x1A in the EEPROM and increments the EEPROM address pointer.

0x0E1C

[7:0]

The default value of these two registers is 0x0300. Because the previous register contains a data

instruction, these two registers define a starting address (in this case, 0x0300). The controller stores

0x0300 in the EEPROM and increments the EEPROM pointer by 2. It then transfers 27 bytes from the

pointer by 28 (27 data bytes and one checksum byte). The 27 bytes transferred correspond to the

REFA parameters in the register map.

0x0E1D

[7:0]

0x0E1E

[7:0]

REFB

The default value of this register is 0x1A, which is a data instruction. Its decimal value is 26, which

tells the controller to transfer 27 bytes of data (26 + 1), beginning at the address specified by the

next two bytes. The controller stores 0x1A in the EEPROM and increments the EEPROM address pointer.

0x0E1F

[7:0]

The default value of these two registers is 0x0320. Because the previous register contains a data

instruction, these two registers define a starting address (in this case, 0x0320). The controller stores

0x0320 in the EEPROM and increments the EEPROM pointer by 2. It then transfers 27 bytes from the

pointer by 28 (27 data bytes and one checksum byte). The 27 bytes transferred correspond to the

REFB parameters in the register map.

0x0E20

[7:0]

0x0E21

[7:0]

REFC

The default value of this register is 0x1A, which is a data instruction. Its decimal value is 26, which

tells the controller to transfer 27 bytes of data (26 + 1), beginning at the address specified by the

next two bytes. The controller stores 0x1A in the EEPROM and increments the EEPROM address pointer.

0x0E22

[7:0]

The default value of these two registers is 0x0340. Because the previous register contains a data

instruction, these two registers define a starting address (in this case, 0x0340). The controller stores

0x0340 in the EEPROM and increments the EEPROM pointer by 2. It then transfers 27 bytes from the

pointer by 28 (27 data bytes and one checksum byte). The 27 bytes transferred correspond to the

REFC parameters in the register map.

0x0E23

[7:0]

0x0E24

[7:0]

REFD

The default value of this register is 0x1A, which is a data instruction. Its decimal value is 26, which

tells the controller to transfer 27 bytes of data (26 + 1), beginning at the address specified by the

next two bytes. The controller stores 0x1A in the EEPROM and increments the EEPROM address pointer.

0x0E25

[7:0]

The default value of these two registers is 0x0360. Because the previous register contains a data

instruction, these two registers define a starting address (in this case, 0x0360). The controller stores

0x0360 in the EEPROM and increments the EEPROM pointer by 2. It then transfers 27 bytes from the

pointer by 28 (27 data bytes and one checksum byte). The 27 bytes transferred correspond to the

REFD parameters in the register map.

0x0E26

[7:0]

AD9559PCBZ Datasheet(PDF) 114 Page - Analog Devices

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