Preliminary Technical Data

AD5522

Rev. PrM | Page 41 of 48

POWER ON DEFAULT

The power on default for all DAC channels is that the contents of each m register is set to full-scale (0xFFFF) and c register to

midscale(0x8000). The contents of the DAC registers are :

Offset DAC: 0xA492, FIN DACs: 0x8000, CLL DACs: 0x0000, CLH DACs: 0xFFFF, CPL DACs: 0x0000, CPH DACs: 0xFFFF

The power on default for the Alarm Status Register is 0xFFFFF0, while the Comparator Status registers powers up at 0x400000. The

power on defaults of the PMU register and the System Control Register are shown below.

Table 28. Power on Default for System Control Register and PMU Register

SYSTEM CONTROL REGISTER POWER ON DEFAULT

PMU REGISTER POWER ON DEFAULT

Bit

Bit name

Description

Bit name

Description

21 (MSB)

CL3

0

CH EN

0

20

CL2

0

FORCE1

0

19

CL1

0

FORCE0

0

18

CL0

0

RESERVED

0

17

CPOLH3

0

C2

0

16

CPOLH2

0

C1

1

15

CPOLH1

0

C0

1

14

CPOLH0

0

MEAS1

1

13

CPBIASEN

0

MEAS0

1

12

DUTGND/CH

0

FIN

0

11

GUARD ALM

0

SFO

0

10

CLAMP ALM

0

SSO

0

9

INT10K

0

CL

0

8

GUARD EN

0

CPOLH

0

7

GAIN1

0

COMPARE V/I

0

6

GAIN0

0

LTMPALM

1

5

TMP ENABLE

1

TMPALM

1

4

TMP1

0

0

3

TMP0

0

0

2

LATCHED

0

0

1

0

0

0 (LSB)

Unused Data Bits

0

Unused Data Bits

0