DA82562EM Intel, DA82562EM Datasheet - Page 68

• Manufacturer Part Number: DA82562EM
• Manufacturer: Intel

Specifications of DA82562EM

• Lead Free Status / Rohs Status: Not Compliant

Host Software Interface
6.4.2.2
60
Figure 16. Individual Address Setup Command Format
Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual
Individual Address Setup (001b)
This command is used to load the device with the individual address. This address is used by the
device for inserting the source address during transmission and recognizing the destination address
during reception. After a full reset and prior to individual address setup command execution, the
device assumes the broadcast address (FF FF FF FF FF FFh) is the individual address in all
respects.
This address loaded into the device is used as the individual address match reference. It will also be
used as the source address of a transmitted frame (if the no source address insertion bit equals 0).
00h
04h
08h
0Ch
Link Address
EL (Bit 31)
S (Bit 30)
I (Bit 29)
Bits 28:19
CMD (Bits 18:16)
C (Bit 15)
OK (Bit 13)
Individual
Address
Offset
EL
Link Address (A31:A0)
IA 4th Byte, IA 3rd Byte
S
Command Word Bits 31:16
This is the 32-bit address of the next command block. It is added to the CU base to
obtain the actual address.
If this bit is set to one, it indicates that this command block is the last one on the CBL.
The CU will go from the active to the idle state after the execution of the CB is finished.
This transition will always cause an interrupt with the CNA/CI bit set in the SCB.
If this bit is set to one, the CU will be suspended after the completion of this CB. A CNA
interrupt will be generated if the device is configured for this. The CU transitions from the
active to the suspended state after the execution of the CB.
If the I bit is set to one, the device generates an interrupt after the execution of the CB is
finished. If I is not set to one, the CX interrupt will not be generated.
These bits are reserved and should all be set to 0.
This is the Individual Address Setup command, which has a value of 001b.
This bit indicates the execution status of the command. Software should reset this bit
before issuing the command to the device. Following a command completion, the device
sets it to one.
NOTE: The difference in the definition of the C bit for the transmit command
The OK bit indicates that the command was executed without error. If it equals one, no
error occurred (command executed OK). If the OK bit is zero and the C bit is set, then an
error occurred.
NOTE: The difference in the definition of the C bit for the transmit command
The individual address of the node is 6 bytes long. IA byte 1 corresponds to the first byte
of the address that is transmitted over the wire. For example, if the node address is 00
AA 00 01 02 03h, the bytes will be programmed as follows:
IA Byte 1 00h
IA Byte 2 AAh
IA Byte 3 00h
IA Byte 4 01h
IA Byte 5 02h
IA Byte 6 03h
I
0000000000
(Section
(Section
6.4.2.5).
6.4.2.5).
001
C
IA 2nd Byte, IA 1st Byte
IA 6th Byte, IA 5th Byte
X
Status Word Bits 15:0
OK
XXXXXXXXXXXXX