GC5316 datasheet(57/75 Pages) TI

57 / 75 page

GC5316

SLWS154A − JANUARY 2004 − REVISED MARCH 2004

www.ti.com

test_bits_1

0100

TEST BITS. Set to ’0’ for normal operation.

pmeter_sync_disable

0100

Turns off the sync to the channel power meter.

This can be used to individually turn off syncs to

a channels power meter, while still having syncs

to other power meters on the chip.

ddc_duc_ena

0100

When set this turns on the DUC or DDC. When

unset, the clocks to this block are turned off.

mixer_gain

0100

Adds a fixed −6 dB of gain to the mixer

output(before round and limiting) when asserted.

Else adds −12-dB gain when deasserted.

mpu_ram_read

0100

(TESTING PURPOSES) Allows the coefficient

RAMs in the PFIR/CFIR to be read out the mpu

data bus. This cannot be done during normal

operation and must be done when the state of

the output data is not important. THIS BIT MUST

BE SET ONLY DURING THE READ

OPERATION.

sumchn_sel_b

0100

This word controls the second set of additions for

the CDMA B signal in the sumchn output. The

selection bits are not mutually exclusive.

sumchn_sel_a

0100

This word controls the first set of additions for the

CDMA A signal (or UMTS signal) in the sumchn

output. The selection bits are not mutually

exclusive.

tst_sel_block

0100

(TESTING PURPOSES) This is the selection of

which signal comes out the test bus. When a

constant ‘0’ is selected this also reduces power

by preventing the data at the input of the test

block from changing. It does not stop the clock

however.

ssel_pmeter

0120

Selects the sync source for the channel power

meter.

ssel_serial

0120

Selects the sync source for the DUC and DDC

serial interface state machines.

ssel_tadj_fine

0120

Selects the sync source for the fine time adjust

decimation(DUC) or zero stuff(DDC) moment.

ssel_tadj_coarse

0120

Selects the sync source for the course time

adjust delay selection.

ssel_gain

0120

Selects the sync source for the DUC gain

ssel_nco

0120

Selects the sync source for the NCO

accumulator reset.

ssel_dither

0120

Selects the sync source for the NCO phase

dither generator reset.

ssel_freq

0120

Selects the sync source for the NCO frequency

ssel_phase

0120

Selects the sync source for the NCO phase

offset register.

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