GC5018 Datasheet, PDF (62/115 Pages) Texas Instruments – 8-CHANNEL WIDEBAND RECEIVER

GC5018
8-CHANNEL WIDEBAND RECEIVER
SLWS169 – MAY 2005
www.ti.com
recv_pmeter0_strt_intrvl(15:0) : The start interval timer is the interval over which the sqr_sum is
restarted. The timer value is (8*strt_intrvl + 1) samples and must be larger than
(8*sqr_sum+1) samples. The interval start counter and RMS power accumulation is started
at the sync pulse after the programmed delay and every time the STRT_INTRVL counter
reaches its limit.
4.4.3.11 RECV_PMETER0_SYNC_DLY Register
Register name: RECV_PMETER0_SYNC_DLY
BIT 15
delay_line_0(5:0)
Address: 0xA
0
0
BIT 7
0
0
0
0
0
0
recv_pmeter0_sync_delay (7:0)
0
0
0
0
unused
0
0
BIT 8
recv_pmeter0_
sync_delay(8)
0
BIT 0
0
delay_line_0(5:0) : Pointer offset for the rxin_a path variable delay line. Larger values result in larger
pointer offsets and therefore more path delay.
recv_pmeter0_sync_delay(8:0) : Programmable start delay from sync, in eight sample units. The actual
value is (8*sync_delay + 2) samples.
4.4.3.12 RECV_PMETER0_CONFIG Register
Register name: RECV_PMETER0_CONFIG
BIT 15
recv_pmeter0_sqr_sum(20:16)
0
0
0
0
BIT 7
recv_pmeter0_strt_ intrvl(17:16)
0
0
unused
0
unused
0
0
unused
0
Address: 0xB
BIT 8
recv_pmeter0_strt_intrvl(20:18)
0
0
0
BIT 0
ssel_delay_line_0(2:0)
0
0
0
recv_pmeter0_sqr_sum(20:16) : MSBs of sqr_sum value, in 8 sample units
recv_pmeter0_strt_intrvl(20:16) : MSBs of start interval value, in 8 sample units.
ssel_delay_line_0(2:0) : Sync source selection for the 64 sample delay line pointer value update
4.4.3.13 RECV_PMETER1_SQR_SUM_LSB Register
Register name: RECV_PMETER1_SQR_SUM_LSB
Address: 0xC
BIT 15
recv_pmeter1_sqr_sum (15:8)
0
0
0
0
0
0
0
BIT 7
recv_pmeter1_sqr_sum (7:0)
0
0
0
0
0
0
0
BIT 8
0
BIT 0
0
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GC5018 GENERAL CONTROL