參數(shù)資料
型號： KSZ8851-16MLLI TR
廠商： Micrel Inc
文件頁數(shù)： 35/84頁
文件大?。?/td> 0K
描述： IC MAC CTLR 1PORT W/BUS 48LQFP
標(biāo)準(zhǔn)包裝： 1,000
控制器類型： 以太網(wǎng)控制器，MAC/PHY
接口： 總線
電源電壓： 1.8V，2.5V，3.3V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 帶卷 (TR)
Micrel, Inc.
KSZ8851-16MLL/MLLI
March 11, 2014
40
Revision 2.2
Host MAC Address Registers: MARL, MARM and MARH
These Host MAC address registers are loaded starting at word location 0x1 of the EEPROM upon hardware reset. The
software driver can read or write these registers value, 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 registers as mapping
below:
MARL[15:0] = EEPROM 0x1(MAC Byte 2 and 1)
MARM[15:0] = EEPROM 0x2(MAC Byte 4 and 3)
MARH[15:0] = EEPROM 0x3(MAC Byte 6 and 5)
The Host MAC address is used to define the individual destination address that the KSZ8851-16MLL responds to when
receiving frames. Network addresses are generally expressed in the form of 01:23:45:67:89:AB, where the bytes are
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 are on the order of 10000000 11000100 10100010 11100110 10010001 11010101.
These three registers value for Host MAC address 01:23:45:67:89:AB will be held as below:
MARL[15:0] = 0x89AB
MARM[15:0] = 0x4567
MARH[15:0] = 0x0123
Host MAC Address Register Low (0x10 – 0x11): MARL
The following table shows the register bit fields for Low word of Host MAC address.
Bit
Default Value
R/W
Description
15-0
-
RW
MARL MAC Address Low
The least significant word of the MAC address.
Host MAC Address Register Middle (0x12 – 0x13): MARM
The following table shows the register bit fields for middle word of Host MAC address.
Bit
Default Value
R/W
Description
15-0
-
RW
MARM MAC Address Middle
The middle word of the MAC address.
Host MAC Address Register High (0x14 – 0x15): MARH
The following table shows the register bit fields for high word of Host MAC address.
Bit
Default Value
R/W
Description
15-0
-
RW
MARH MAC Address High
The Most significant word of the MAC address.
0x16 – 0x1F: Reserved
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KSZ8851-16MLLJ_10 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface
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