LAN8810I-AKZE Datasheet, PDF (68/100 Pages) Microchip Technology – GMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support

GMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
4.3 Advanced PHY Registers
4.3.1
The advanced PHY registers are accessed using the following procedure:
1. Write to the Advanced Register Address Port with the Read bit set high, and the address of the
desired advanced register in the Register Address field.
2. Read the contents of the selected register from Advanced Register Read Data Port.
Note: The advanced registers cannot be written. All advanced registers are comprised of read-only
(RO), or read-to-clear (RC) bits.
Advanced Register Mapping
Table 4.3 Advanced Register Mapping
REGISTER
NUMBER
REGISTER NAME
U0
User Status 1 Register
U1
User Status 2 Register
U2
Receive Error-Free Packets Counter High Register
U3
Receive Error-Free Packets Counter Mid Register
U4
Receive Error-Free Packets Counter Low Register
U5
CRC Error Counter High Register
U6
CRC Error Counter Mid Register
U7
CRC Error Counter Low Register
U8
Receive Error During Data Counter Register
U9
Receive Error During Idle Counter Register
U10
Transmit Packet Counter High Register
U11
Transmit Packet Counter Mid Register
U12
Transmit Packet Counter Low Register
Revision 1.0 (02-06-13)
68
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SMSC LAN8810/LAN8810i