AM79C978 Advanced Micro Devices, AM79C978 Datasheet - Page 181
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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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
These registers should be ignored when read and
should not be written to at any time.
15:10
Bits
15:0
9:4
3:0
Hex
04
05
06
07
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 49. HPR4-HPR7: HomePNA PHY Auto-Negotiation (Registers 4 - 7)
Mnemonic
Mnemonic
Table 48. HPR2 and HPR3: HomePNA PHY MII ID (Registers 2 and 3)
Most significant bytes of the PHY_ID (Bits 3-18)
IEEE Address (Bits 19-24)
Manufacturer Model Number
Revision Number
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Next Page
Am79C978
Description
Description
Read/
Write
Read/
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
181
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