12

ACE9030

Summary of Normal Commands - DATA2 bits 7, 6 = 01

Normal commands are always a request for data; the ADC registers to be read are defined by Y1 and Y0 in DATA3. A normal

command will also end Sleep mode.

BIT

EFFECT when at 0

EFFECT when at 1

DATA2:

7

With DATA2:6 defines command type

-

6

-

With DATA2:7 defines command type

5

Discriminator powered down

Discriminator active.

4

-

Load Lock threshold register from DATA1:7-1

3

DAC3 powered down

DAC3 active

2

-

Load DOUT7-0 from DATA1:7-0

1

-

Load DAC3 from DATA1:7-0

0

Not used

Not used

DATA3:

7

Not used

Not used

6

LO2 multiplier powered down

LO2 multiplier active

5

Set DOUT8 to OFF

Set DOUT8 to ON, to output the ADC reference voltage

4

-

Load ADC1 comparator from DATA1:7-0

3

-

Load DAC1 from DATA1:7-0

2

-

Load DAC2 from DATA1:7-0

1

Y1 Decode with DATA3:0 for Polling ADC register read

0

Y0 Decode with DATA3:1 for Polling ADC register read

BIT

EFFECT when at 0

EFFECT when at 1

DATA2:

7

-

With DATA2:6 defines command type

6

With DATA2:7 defines command type

-

5

Not used

Not used

4

-

Set OSC8 VCO range from DATA1:5-0

3

-

Set OSC8 VCO offset from DATA1:5-0

2

Select input A for ADC3

Select input B for ADC3

1

Select input A for ADC2

Select input B for ADC2

0

OSC8 off

OSC8 on

DATA3:

7

Crystal oscillator off

Crystal oscillator on

6

Bandgap off - use external reference

Bandgap on

5

-

Set discriminator divisors from DATA1:7,6

and lock detect period from DATA1:5

and OSC8 divisors from DATA1:2-0

4

-

Set bandgap trim from DATA1:7-0

3

Not used

Not used

2

Not used

Not used

1

-

Do a restart if both DATA3 bits 1 and 0 are at 1

0

-

Do a restart if both DATA3 bits 1 and 0 are at 1

Summary of Set-up Commands - DATA2 bits 7, 6 = 10