L64704 LSI Logic Corporation, L64704 Datasheet - Page 191

L64704

Manufacturer Part Number

L64704

Description

Satellite Decoder Technical Manual 5/97

Manufacturer

LSI Logic Corporation

Datasheet

1.L64704.pdf (220 pages)

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Figure B.1

Flow Diagram of

Microcontroller

Monitoring External

Loops

Controlling the L64704’s BPSK/QPSK Demodulator Loops

CAR_CONFIG = 0x27

CAR_CONFIG = 0x25

CAR_VCO1N/P = 1

CAR_THSL = 0x48

CAR_SWR = 0xF0

CLK_LCF = 1?

CAR_LC = 1?

Initialize

Yes

CAR_SW = 1

CAR_CONFIG = 0x24

CAR_LC = 1?

S1 & S2 &

S3 = 1?

CAR_CONFIG = 0x27

Yes

CAR_CONFIG = 0x25

CAR_VCO1N/P = 0

CAR_THSL = 0x1F

CAR_SWR = 0x28

CAR_LC = 1?

Yes

B-3

L64704 LSI Logic Corporation, L64704 Datasheet - Page 191

L64704

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