AM79C978 Advanced Micro Devices, AM79C978 Datasheet - Page 188
AM79C978
Manufacturer Part Number
AM79C978
Description
Single-Chip 1/10 Mbps PCI Home Networking Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C978.pdf
(261 pages)
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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
188
(in Decimal)
Register
Address
20-23
25-31
8-15
2-3
16
17
18
19
24
0
1
4
5
6
7
Auto-Negotiation Next
Auto-Negotiation Link
Interrupt Enable and
PHY Control/Status
PHY Management
Auto-Negotiation
Auto-Negotiation
Summary Status
Register Name
Register Set
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Partner Ability
PHY Identifier
PHY Control
PHY Status
Expansion
Reserved
Reserved
Extension
Reserved
Reserved
Status
Page
Extended
Basic/
B
B
E
E
E
E
E
E
E
E
E
E
E
E
E
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