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ETHERNET COMMUNICATION MODULE
Station Address Filter register
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Register bit
assignments for
all three registers
Note:
Octet #6 is the first byte of a frame received from the MAC. Octet #1 is the
last byte of the station address received from the MAC.
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Station Address Filter register
Address: A060 0500
The Station Address Filter register contains several filter controls. The register is
located in the station address logic (see “Station address logic (SAL)” on page 264).
All filtering conditions are independent of each other. For example, the station
address logic can be programmed to accept all multicast frames, all broadcast
frames, and frames to the programmed destination address.
Reserved
OCTET5
13121110987654321015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
OCTET6
Bits Access Mnemonic Reset Description
Station Address Register #1
D31:16 N/A Reserved N/A N/A
D15:08 R/W OCTET1 0 Station address octet #1 (stad[7:0])
D07:00 R/W OCTET2 0 Station address octet #2 (stad[15:8])
Station Address Register #2
D31:16 N/A Reserved N/A N/A
D15:08 R/W OCTET3 0 Station address octet #3 (stad[23:16])
D07:00 R/W OCTET4 0 Station address octet #4 (stad[31:24])
Station Address Register #3
D31:16 N/A Reserved N/A N/A
D15:08 R/W OCTET5 0 Station address octet #5 (stad[39:32])
D07:00 R/W OCTET6 0 Station address octet #6 (stad[47:40])