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LAN9117 데이터시트(HTML) 84 Page - Microchip Technology

부품명 LAN9117
상세내용  High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
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제조사  MICROCHIP [Microchip Technology]
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LAN9117 데이터시트(HTML) 84 Page - Microchip Technology

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LAN9117
DS00002267A-page 84
 2005-2016 Microchip Technology Inc.
5.4.5
HASHL—MULTICAST HASH TABLE LOW REGISTER
This register defines the lower 32-bits of the Multicast Hash Table. Please refer to Table 5.4.4, "HASHH—Multicast Hash
Table High Register" for further details.
5.4.6
MII_ACC—MII ACCESS REGISTER
This register is used to control the Management cycles to the PHY.
Offset:
5
Attribute:
R/W
Default Value:
00000000h
Size:
32 bits
Bits
Description
31-0
Lower 32 bits of the 64-bit Hash Table
Offset:
6
Attribute:
R/W
Default Value:
00000000h
Size:
32 bits
Bits
Description
31-16
Reserved
15-11
PHY Address: Selects the external or internal PHY based on its address. The internal PHY is set to
address 00001b.
10-6
MII Register Index (MIIRINDA): These bits select the desired MII register in the PHY.
5-2
Reserved
1
MII Write (MIIWnR): Setting this bit tells the PHY that this will be a write operation using the MII data
register. If this bit is not set, this will be a read operation, packing the data in the MII data register.
0
MII Busy (MIIBZY): This bit must be polled to determine when the MII register access is complete.
This bit must read a logical 0 before writing to this register and MII data register.
The LAN driver software must set (1) this bit in order for the LAN9117 to read or write any of the MII
PHY registers.
During a MII register access, this bit will be set, signifying a read or write access is in progress. The
MII data register must be kept valid until the MAC clears this bit during a PHY write operation. The
MII data register is invalid until the MAC has cleared this bit during a PHY read operation.


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