AD5370BSTZ datasheet(20/24 Pages) AD

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Preliminary Technical Data

AD5370

Rev. P

rF | Page 20 of 24

SPECIAL FUNCTION MODE

If the mode bits are 00, then the special function mode is

selected, as shown in Table 11. Bits I21 to I16 of the serial data

word select the special function, while the remaining bits are

data required for execution of the special function, for example

the channel address for data readback.

The codes for the special functions are shown in Table 12. Table

13 shows the addresses for data readback.

Table 11. Special Function Mode

I23

I22

I21

I20

I19

I18

I17

I16

I15

I14

I13

I12

I11

I10

F15

F14

F13

F12

F11

F10

Table 12. Special Function Codes

SPECIAL FUNCTION CODE

DATA

F15-F0

ACTION

0000 0000 0000 0000

NOP

XXXX XXXX XXXX X[F2:F0]

Write control register

F2 = 1

Select B register for input.

F2 = 0

Select A register for input.

F1 = 1

Enable temperature shutdown.

F1 = 0

Disable temperature shutdown.

F0 = 1

Soft power down; F0 = 0

Soft power up.

XX[F13:F0]

Write data in F13:F0 to OFS0 register

XX[F13:F0]

Write data in F13:F0 to OFS1 register

XX[F13:F0]

Reserved

See Table 13

Select register for readback

XXXX XXXX[F7:F0]

Write data in F7:F0 to A/B Select Register 0

XXXX XXXX[F7:F0]

Write data in F7:F0 to A/B Select Register 1

XXXX XXXX[F7:F0]

Write data in F7:F0 to A/B Select Register 2

XXXX XXXX[F7:F0]

Write data in F7:F0 to A/B Select Register 3

XXXX XXXX[F7:F0]

Write data in F7:F0 to A/B Select Register 4

XXXX XXXX [F7:F0]

Block write A/B Select Registers

F7:F0 = 0, write all 0’s (all channels use X2A register)

F7:F0 = 1, wrote all 1’s (all channels use X2B register)

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