GE Voluson P8 Basic Service Manual page 218

GE RAFT
DIRECTION 5775469, R
5-2-3-4 D-Mode Autotrace (draws PC-calculated envelope to D-Spectrum)
1.) DRFG
-
-
a.) DMA section
5-14
3 DRAFT (J
EVISION
PRF-generator; see: Section 5-2-3-1 "B-Mode" on page 5-12
After DC-cancelling the signal is mixed with RX-Frequency and brought to LF-Spectrum,
where the LowPassFilter cuts HF.
Mixer and Magnitude-Calculator arrange Complex Demodulation.
D-mode-Data is written via SP0 into SDRAM Fifo Buffer memory.
PC calculates Autotrace-Curve from D-Mode data.
Cine Mode with Autotrace: Cine Mode-Memory for the Autotrace-Curve is inside SOM-
Memory.
Software has to take care that D-Spectrum and Autotrace-Curve are placed exactly one upon
the other, means: have the same Cine-Shift.
Section 5-2 - General Information
19, 2018)
ULY
V ™ P8/V
OLUSON OLUSON
B S M
ASIC ERVICE ANUAL
™P6