ST7LNB0

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5 ST7LNB0 CONFIGURATION

To configure the ST7LNB0 to the required target application, a dedicated DiSEqC command is imple-

mented. This configuration is stored in the ST7LNB0 embedded EEPROM location.

5.1 COMMAND 0Fh

ST7LNB0 devices are shipped to customers with a default parameter value. These parameters can be up-

dated using a dedicated 0Fh DiSEqC command.

This command has the following format where “data” is the parameter value to be programmed at the “in-

dex” location as shown in Table 5.

Note:

The special command E0 xx 0F FF FF protects the EEPROM data from any subsequent write access (where xx is the

corresponding DiSEqC Slave address).

5.2 COMMAND 0Dh

For reading a parameter inside the EEPROM a dedicated 0Dh command has been added.

This command has the following format where” index” is the address in the EPPROM of the byte to be

read (see Table 5)

:The reply frame has the following format where “data” is the read byte from the EEPROM:

Timings:

the time required to update a byte parameter (write and read operation) is 130 ms

the time required to update all the parameters is about 3.5 s

E0h

DiSEqC

Slave address

0Fh

index

data

E2h

DiSEqC

Slave address

0Dh

index

E4h

data