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AM79C978VC/W Scheda tecnica(PDF) 188 Page - Advanced Micro Devices

Il numero della parte AM79C978VC/W
Spiegazioni elettronici  Single-Chip 1/10 Mbps PCI Home Networking Controller
PDF  261 Pages
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Produttore elettronici  AMD [Advanced Micro Devices]
Homepage  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C978VC/W Scheda tecnica(HTML) 188 Page - Advanced Micro Devices

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Am79C978
10BASE-T PHY Management Registers
(TBRs)
The Am79C978 home networking device supports the
MII basic register set and extended register set. Both
sets of registers are accessible through the PHY Man-
agement Interface. As specified in the IEEE standard,
the basic register set consists of the Control Register
(Register 0) and the Status Register (Register 1). The
extended register set consists of Registers 2 to 31
(decimal).
Table 64 lists all the 10BASE-T registers implemented
in the device. All the reserved registers should not be
written to, and reading them will return a zero value.
Table 64.
Am79C978 10BASE-T PHY Management
Register Set
Register
Address
(in Decimal)
Register Name
Basic/
Extended
0
PHY Control
B
1PHY Status
B
2-3
PHY Identifier
E
4
Auto-Negotiation
Advertisement
E
5
Auto-Negotiation Link
Partner Ability
E
6
Auto-Negotiation
Expansion
E
7
Auto-Negotiation Next
Page
E
8-15
Reserved
E
16
Interrupt Enable and
Status
E
17
PHY Control/Status
E
18
Reserved
E
19
PHY Management
Extension
E
20-23
Reserved
E
24
Summary Status
E
25-31
Reserved
E



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