Register 2: Phy Identifier 1 Register; Register 3: Phy Identifier 2 Register; Register 4: Auto-Negotiation Advertisement Register; Table 16: Register 2: Phy Identifier 1 Register - Altima AC101 Series Manual

AC101
Reg.bit Name
1.0 Extended Ca-
pability
R 2: PHY I
EGISTER DENTIFIER
Reg.bit Name
a
2.[15:0] OUI
a. Based on an OUI of 0010A9 (Hex).
R 3: PHY I
EGISTER DENTIFIER
Reg.bit Name
a
3.[15:10] OUI
3.[9:4] Model Number
3.[3:0] Revision Num-
ber
a. Based on an OUI of 0010A9 (Hex).
R 4: A -N
EGISTER UTO
The ANeg Complete bit of Register 1: Status Register (see "Register 1: Status Register" on page 25) must be set for this
register to be valid.
Reg.bit Name
4.15 Next Page
4.14 Acknowledge
4.13 Remote Fault
4.[12:10] Reserved
4.9 100BASE-T4
Page 26 MII-Specified Registers
Table 15: Register 1: Status Register (Cont.)
1 = Extended register capable. This bit is tied permanently to
one.
1 R
EGISTER

Table 16: Register 2: PHY Identifier 1 Register

Composed of the 3rd through 18th bits of the Organizationally
Unique Identifier (OUI), respectively.
2 R
EGISTER

Table 17: Register 3: PHY Identifier 2 Register

Assigned to the 19th through 24th bits of the OUI.
Six bit manufacturer's model number. 101 is encoded as
100001.
Four-bit manufacturer's revision number. 0011 stands for Rev.
C, etc.
A
EGOTIATION DVERTISEMENT

Table 18: Register 4: Auto-Negotiation Advertisement Register

• 1 = Next Page enabled.
• 0 = Next Page disabled.
This bit will be set internally after receiving 3 consecutive and
consistent FLP bursts.
• 1 = Advertises that this device has detected a Remote Fault.
• 0 = No remote fault detected.
For future technology.
Technology not supported. This bit always 0
Description
Description
Description
R
EGISTER
Description
Br oad com
Preliminary Data Sheet
06/04/01
Mode Default
RO 1
Mode Default
RO 0022(H)
Mode Default
RO 010101
RO 100001
RO 1011
Mode Default
RW 0
RO 0
RW 0
RW 000
RO 0
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