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參數(shù)資料
| 型號： | KSZ8851SNL-EVAL |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 35/80頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVALUATION KSZ8851SNL |
| 產品培訓模塊： | KSZ8851 10/100 Embedded Controllers |
| 標準包裝： | 1 |
| 系列： | LinkMD® |
| 主要目的： | 接口，以太網控制器（PHY 和 MAC） |
| 嵌入式： | 否 |
| 已用 IC / 零件： | KSZ8851SNL |
| 主要屬性： | 1 個端口，100BASE-TX/10BASE-T |
| 次要屬性： | SPI 接口，LinkMD 線纜診斷 |
| 已供物品： | 板，文檔 |
| 產品目錄頁面： | 1081 (CN2011-ZH PDF) |
| 相關產品： | 576-3299-6-ND - IC CTLR MAC/PHY NON-PCI 32-MLF 576-3299-1-ND - IC CTLR MAC/PHY NON-PCI 32-MLF 576-3299-2-ND - IC CTLR MAC/PHY NON-PCI 32-MLF 576-3254-ND - IC CTLR MAC/PHY NON-PCI 32-QFN |
| 其它名稱： | 576-3293 |
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Micrel, Inc.
KSZ8851SNL/SNLI
August 2009
40
M9999-083109-2.0
Register Map: MAC, PHY and QMU
Do not write to bit values or to registers defined as Reserved. Manipulating reserved bits or registers causes
unpredictable and often fatal results. If the user wants to write to these reserved bits, the user has to read back these
reserved bits (RO or RW) first, then “OR” with the read value of the reserved bits and write back to these reserved bits.
Bit Type Definition
RO = Read only.
WO = Write only.
RW = Read/Write.
W1C = Write 1 to Clear (writing an “1” to clear this bit).
0x00 – 0x07: Reserved
Chip Configuration Register (0x08 – 0x09): CCR
This register indicates the chip configuration mode based on strapping and bonding options
Bit
Default Value
R/W
Description
15-10
-
RO
Reserved
9
-
RO
EEPROM presence
The EED_IO (pin 6) value is latched into this bit druing power-up/reset.
0: No external EEPROM, 1: Use external EEPROM.
8
-
RO
SPI bus mode
To indicate this is SPI interface for host
0: No, 1: Yes.
7-4
0x0
RO
Reserved
3
0
RO
Reserved
2
0
RO
Reserved
1
0
RO
Reserved
0
-
RO
32-Pin Chip Package
To indicate this device is KSZ8851SNL.
0: No, 1: Yes
0x0A – 0x0F: Reserved
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 KSZ8851SNL 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
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| KSZ8851SNL-EVAL | 制造商:Micrel Inc 功能描述:BOARD EVALUATION FOR KSZ8851SNL |
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| KSZ8851SNLTR | 制造商:Micrel Inc 功能描述: |
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