Specifications

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SLWS142J − JANUARY 2003 − REVISED AUGUST 2007

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Table 36. AGC Maximum Adaptation Limit Page 0x13 Address 0x16

Rcv Tx FIELD BITS Dflt DESCRIPTION

D D agc_max 15..0 0 AGC maximum adaptation limit. Upper limit for adapted gain is manual_gain + agc_max

Table 37. AGC Counts and Threshold Page 0x13 Address 0x17

Rcv Tx FIELD BITS Dflt DESCRIPTION

D D agc_zero_cnt 3..0 0 Run of zeros before fast adaptation gain increase step Dzro is used

D D agc_sat_cnt 7..4 0 Run of saturated values before fast adaptation gain reduction step Dsat is used

D D agc_thresh 15..8 0 Threshold for AGC adaptation

Table 38. AGC Loop Gains Page 0x13 Address 0x18

Rcv Tx FIELD BITS Dflt DESCRIPTION

D D agc_Dblw 3..0 0 Gain shift for below threshold

D D agc_Dabv 7..4 0 Gain shift for above threshold

D D agc_Dzro 11..8 0 Gain shift for zero data

D D agc_Dsat 15..12 0 Gain shift for saturated

Table 39. AGC Gain Read Back Page 0x13 Address 0x19

Rcv Tx FIELD BITS Dflt DESCRIPTION

− − gain_read 15..0 Read back of top 16 of 19 bits, current gain setting (read only)

17.12 Power Meter

The Power Meter integrates the I squared and Q squared values, over the integration counts. Table 43 is the

integration counts. Table 42 is the controller setup, Tables 40 and 41 are the 32bit accumulated value.

Table 40. Power Meter (LSB) Page 0x13 Address 0x1A

Rcv Tx FIELD BITS Dflt DESCRIPTION

− − pwr_meter_lsb 15..0 Read back of power meter least significant 16 bits (read only)

Table 41. Power Meter (MSB) Page 0x13 Address 0x1B

Rcv Tx FIELD BITS Dflt DESCRIPTION

− − pwr_meter_msb 15..0 Read back of power meter most significant 16 bits (read only)

Table 42. Power Meter Status Page 0x13 Address 0x1C

Rcv Tx FIELD BITS Dflt DESCRIPTION

− − ready 15 1 means power sample ready to read, user must reset to 0

− − missed 14 Set if power sample missed; reset by user

− − too_soon 13 Set if power sample reads too soon; reset by user

12 Factory test bit keep 0

− − pwr_os 11 Power Meter One shot control keep 0 if pwr_msr = 1, if pwr_msr = 0, then use to fire one

shot. 0 = armed, 1 = triggered; be sure that there are 2 clocks between arming and

triggering

D D pwr_msr 10 0 1 = use read of register (address 0x1B) to fire one shot; 0 = manually fire one shot

9..8 Unused

− − gain_sign 7 Read only, sign bit from gain. Only useful if one collects statistics over time.

6 Sticky bit, set if gain zero = 1, reset by user (See Table 2)

5 Sticky bit, set if gain saturated = 1, reset by user (See Table 2)

4..0 Unused