R2000 datasheet(43/75 Pages) ETC

43 / 75 page

Indy® R2000 Electrical, Mechanical, & Thermal Specification

Addr.

Name

R/W

Bit

Description

Reset

Type

Comment

111

LOCK_DETECT_

CNT

R/W

15:0

Lock detect integration time

h0000

Number of comparison

cycles until lock detect is

asserted. Specified in

48 MHz cycles.

112

LOCK_DET_VAL

Lock detect signal from FSM

h0000

113

LOCK_DET_MO

R/W

Enable manual override

Override value

h0000

Override of the PLL lock

detect signal from the

FSM.

114

CLK_DBL_MO

R/W

7:0

Enable manual override

Override value for clock

doubler

h0000

Override of the clock

doubler delay setting.

115

CLK_DBL_VALUE

7:0

Clock doubler value

h0000

Read back of clock

doubler delay setting.

116

IF_TUNING_CTRL

R/W

3:2

Tuning speed

Filter selection

Start filter tuning

h0000

The tuning speed settings

generates the following

tuning rates:

0 = 100 kHz

1 = 50 kHz

2 = 25 kHz

The filter selection

determines which filter to

tune:

1 = RX IF filter

0 = TX IF filter

The start tuning bit is self-

clearing.

117

IF_FILTER_

RTUNE

R/W

13:8

7:6

5:0

tune_r_tx

Not used

tune_r_rx

h0000

R values for the tuning

machine. Indirectly sets

the bandwidth of the TX

reconstruction filter and

the RX IF filter.

118

FILTER_CAP_VAL

13:8

7:6

5:0

txfilt_cap

Not used

iffilt_cap

Result from filter tuning

machine.

119

FILTER_CAP_MO

R/W

13:8

5:0

Enable MO of txfilt_cap

Override value of txfilt_cap

Not used

Enable MO of iffilt_cap

Override value of iffilt_cap

h0000

Override register for the

capacitance values

provided by the filter tuning

state-machine.

11A

DCREM_VAL

mixer_lc_load value from

logic

dcrem_open_dc value from

MUX

dcrem_short value from MUX

dcrem_open value from MUX

Read back of DC removal

settings as set by the

FSM.

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