Mikroelektronika MIKROE-350 Data Sheet

372

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

Note: Advance filtering available in the 

ENC28J60

module such as

Pattern

Match, Magic Packet

and 

Hash Table

can not be enabled by this routine.

Additionaly, all filters, except CRC, enabled with this routine will work in OR
mode, which means that packet will be received if any of the enabled filters
accepts it. 

Note: This routine will change receive filter configuration on-the-fly. It will not, in
any way, mess with enabling/disabling receive/transmit logic or any other part of
the 

ENC28J60

module. The 

ENC28J60

module should be properly cofigured by

the means of Spi_Ethernet_Init routine. 

Ethernet module has to be initialized. See Spi_Ethernet_Init.

Spi_Ethernet_Enable(Spi_Ethernet_CRC or Spi_Ethernet_UNICAST) '

enable CRC checking and Unicast traffic

sub procedure Spi_Ethernet_Disable(dim disFlt as byte)

Nothing. 

This is MAC module routine. This routine disables appropriate network traffic on
the ENC28J60 module by the means of it's receive filters (unicast, multicast,
broadcast, crc). Specific type of network traffic will be disabled if a correspon-
ding bit of this routine's input parameter is set. Therefore, more than one type of
network traffic can be disabled at the same time. For this purpose, predefined
library constants (see the table below) can be ORed to form appropriate input
value. 

Parameters:

- 

disFlt:

network traffic/receive filter flags. Each bit corresponds to the 

appropriate network traffic/receive filter: