AM79C978A AMD [Advanced Micro Devices], AM79C978A Datasheet - Page 189

• Manufacturer Part Number: AM79C978A
• Description: Single-Chip 1/10 Mbps PCI Home Networking Controller
• Manufacturer: AMD [Advanced Micro Devices]

HPR2 and HPR3: HomePNA PHY MII PHY ID
(Registers 2 and 3)
HPR4-HPR7: HomePNA PHY Auto-Negotiation
(Registers 4 - 7)
Reserved Registers: HPR8 - HPR15, HPR17
These registers should be ignored when read and
should not be written to at any time.
Hex
Hex
02
03
04
05
06
07
Address
Address
15:10
Bits
15:0
Bits
9:4
3:0
Table 64. HPR4-HPR7: HomePNA PHY Auto-Negotiation (Registers 4 - 7)
MII_PHY_ID
PHY_ID MSB (31-16)
MII_PHY_ID
PHY_ID LSB (15-10)
PHY_ID LSB (9-4)
PHY_ID LSB (3-0)
Auto-Negotiation Register 4
Auto-Negotiation Register 5
Auto-Negotiation Register 6
Auto-Negotiation Register 7
Table 63. HPR2 and HPR3: HomePNA PHY MII ID (Registers 2 and 3)
Mnemonic
Mnemonic
Most significant bytes of the PHY_ID
(Bits 3-18)
IEEE Address (Bits 19-24)
Manufacturer Model Number
Revision Number
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Am79C978A
Description
Description
Read/
Read/
Write
Write
R
R
R
R
R
R
R
R
Default
Default
0000
0021
0000
0000
0000
Hex
Hex
1A
39
0
Reset
Reset
0000
0021
0000
0000
0000
Soft
Soft
1A
39
0
189