KSZ8841-16 Micrel Semiconductor, KSZ8841-16 Datasheet - Page 48

• Manufacturer Part Number: KSZ8841-16
• Description: Single-port Ethernet Mac Controller With Non-pci Interface
• Manufacturer: Micrel Semiconductor

Bank 2 Host MAC Address Register Low (0x00):
This register along with the other two Host MAC address registers are loaded starting at
EEPROM upon hardware reset. The software driver can modify the register, but it will not modify the original Host MAC
address value in the EEPROM. These six bytes of Host MAC address in external EEPROM are loaded to these three
r
MARL[15:0] = EEPROM 0x1(MAC B
MARM[15:0] = EEPROM 0x2(MAC
MARH[15:0] = EEPROM 0x3(MAC Byte 6 and 5)
The Host MAC address is used to define
r
received from left to right, and the bits within each byte are received from right to left (LSB to MSB). For example, the
actual transmitted and received bits
These three registers value for Hos
MARL[15:0] = 0x89AB
MARM[15:0] = 0x4567
MARH[15:0] = 0x0123
The following table shows the register bit fi
Bank 2 Host MAC Address Register Middle (0x02): MARM
The following table shows the register bit fields for middle word of Host MA
Bank 2 Host MAC Address Register High (0x04): MARH
The following table shows the regis
November 2005
egis
eceivin
Micrel Confidential
Bit
15-0
Bit
15-0
Bit
15-0
ters a
g f
s m
ram
Default Value
-
Default Value
-
Default Value
-
apping below
es. Network
:
R/W
RW
R/W
RW
R/W
RW
add
ress
ter bit fields for high word of Ho
t MAC address 01:23
Byte 4 and 3)
Descriptio
MARL MAC Add
The least si
Description
MARM MAC A
The middle word of the MAC address.
Description
MARH MAC Address High
The Most significant word of the MAC address.
es are generally expressed in the form of
yte 2 and 1)
are on the order of 10000000 11000100 10100010 11100110 10010001 11010101.
elds for Low word of Host MAC address.
the individual
n
gnificant word of the MAC address.
ddress Middle
ress Low
MARL
48
:45:67:89:AB will be held as below:
destination address that the KSZ8841M responds to when
st MAC address.
C address.
01:23:45:67:89:AB, where the bytes are
KSZ8841-16/32 MQL/MVL
word location 0x1 of the
Rev 1.3