82598EB Datasheet, PDF (402/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
4.4.3.13.12Auto-Scan PHY Address Enable – APAE (0x04250; RW)
Field
ATSCANPHYADDEN
Bit(s)
31:0
Initial
Value
Description
00b
Auto-Scan PHY Address Enable
Bit to enable corresponding PHY address.
01b = Enable this address.
00b = Disable this address
4.4.3.13.13Auto-Scan Read Data – ARD (0x04254; RW)
RDDATA
Field
Bit(s)
31:0
Initial
Value
Description
0x0
Read Data
Data from the selected register bit in the corresponding
PHY.
4.4.3.13.14Auto-Scan Interrupt Status – AIS (0x04258; RW)
INTSTA
Field
Bit(s)
31:0
Initial
Value
Description
0x0
Interrupt Status
Selected bit changed in corresponding PHY (latch high,
clear on read).
0x1 = Data changed in corresponding PHY.
0x0 = No change in data from corresponding PHY.
Register is latched high and cleared on read.
4.4.3.13.15MDI Single Command and Address – MSCA (0x0425C; RW)
Field
MDIADD
DEVADD
PHYADD
Bit(s)
Initial
Value
Description
15:0
0x0000
MDI Address
Address used for new protocol MDI accesses (default = 0x0000).
20:16
0x0
Device Type/Reg Address
Five bits representing to either the device type with ST = 00b or the
register address with ST = 01b.
25:21
0x0
PHY Address
The address of the external device.
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