L9662 datasheet(69/80 Pages) STMICROELECTRONICS

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L9662

Functional description

Bit [D3]

Satellite Communication Protocol Selection

0 = MS Protocol

1 = PSI5 Protocol

Bit [D2].

Receiver disable time selection

0 = Receiver disable time is 62

s typical

1 = Receiver disable time is (Tsynchighx time + 20

s)

Channel configuration registers (CCR1, CCR2, CCR3, CCR4)

The SPI message definition for MOSI commands and MISO responses for the CCR/Data

are defined below.

Command/

Mode from

Master

MOSI Bit Definition

D15 D14 D13 D12 D11 D10 D09

D08

D07 D06 D05 D04 D03 D02 D01 D00

MOSI Command

CCR

odd

RS R/W MAN CRC PC1 PC0

SYNC BT1 BT0 EN1 EN0 IHYS

I_Threshold

MISO Response (CCR)

CCR

(D14=1 in

MOSI)

odd

R/W MAN CRC PC1 PC0

SYNC BT1 BT0 EN1 EN0

IHY

I_Threshold

MISO Response (Data)

CCR

(D14=1 in

MOSI)

See Table 40 for MISO Responses

Table 39. MOSI CCR bit definition

Bit

State

MS Mode

PSI5 Mode (1)

MS / PSI5 Mode

MOSI Command

MISO Response for

CCR Mode

MISO Response

for Data Mode

Description

D15

Odd Parity – Includes all 16

bits

Same as MS Mode

Odd Parity – Includes

all 16 bits

See Table 40

D14

CCR (1) / DATA (0)

Same as MS Mode

1= CCR response

D13

Read

Same as MS Mode

R/W

WRITE (only valid if CCR

request)

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