STM8SPLNB1 datasheet(14/44 Pages) STMICROELECTRONICS

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STM8SPLNB1 operation

STM8SPLNB1

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DocID018831 Rev 5

Table 13. Subcommands 0x5B format - ODU_SaTCR_Inst

Subcommand

data1

data2

description

[7:5]

[4:2] [1:0]

[7:0]

ODU_Config

SaTCR(1)

1. SaTCR number - see Table 2: SaTCRs implementation - ST7LNB1 compatible mode

AppliNum(2)

2. See Table 17: DiSEqC Applications for details.

This command is sent by the

STB in order to set the

STM8SPLNB1 application

number. If the data2 value

corresponds to the

STM8SPLNB1 AppliNum, then

the STM8SPLNB1 commands

SaTCR indicated in data1 to

send a tone having frequency:

F = BPF(4), else: F = (BPF +

20 MHz).

ODU_Lofreq

SaTCR(1)

LOfreqNum(3)

3. See Table 18: Local oscillator frequencies for details.

This command is sent by the

STB in order to set the L.O.

frequencies present in the LNB. If

the data2 value corresponds to

the STM8SPLNB1 LOfreqNum,

then the STM8SPLNB1

commands SaTCR indicated in

data1 to send a tone having

frequency: F = BPF(4), else:

F = (BPF + 20 MHz).

4. BPF is bandpass center frequency for a given SaTCR - see Table 14: STM8SPLNB1 EEPROM

parameters for details.

ODU_SaTCRxSignalOn

xxh

When receiving this command

the STM8SPLNB1 commands all

connected SaTCRs to send a

tone in order to indicate their

respective BPF(4) center

frequencies.

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