DSA504RT datasheet(47/73 Pages) MICROCHIP

47 / 73 page

DSA504RT

Preliminary Data Sheet

DS50004033A - 47

Address:

Name:

Default:

Type:

0x00B9:0x00BC

fd1_ss_id_b

0x00000000

R/W

Bit Field

Function Name

Description

31:0

—

FDIV1 frequency plan B spread spectrum increment/decrement value.

Address:

Name:

Default:

Type:

0x00BD:0x00BE

fd1_ss_cnt_b

0x0000

R/W

Bit Field

Function Name

Description

15:0

—

FDIV1 frequency plan B spread spectrum count value.

Address:

Name:

Default:

Type:

0x00BF

fd1_config4

0x00

R/W

Bit Field

Function Name

Description

en_rem_den_b

FDIV1 frequency plan B remainder denominator enable.

0 = Disabled, use internal rem=0, den=1

1 = Enabled, use registers fd1_rem and fd1_den

6:0

gain_doff_s_b

FDIV1 frequency plan B gain offset. Signed 7-bit integer.

Address:

Name:

Default:

Type:

0x00C0

fd1_config5

0x60

R/W

Bit Field

Function Name

Description

fr_intg_mode_b

FDIV1 frequency plan B integer vs. fractional. Set this bit to match the

desired divide value for FDIV1.

0 = Fractional mode

1 = Integer mode

6:5

fr_pd_b

FDIV1 frequency plan B fractional divider power down control.

0 = Enable

3 = Power-down

4:0

reserved

Used to store calibration information. Please do not overwrite.

Address:

Name:

Default:

Type:

0x00C1

fd1_config6

0x00

R/W

Bit Field

Function Name

Description

7:5

reserved

—

enss_b

FDIV1 frequency plan B spread spectrum enable.

0 = Disabled

1 = Enabled

DSA504RT Datasheet(PDF) 47 Page - Microchip Technology

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