Broadcom BCM5722 - Table 541: Auto-Negotiation Advertisement Register (Address 04 D, 04 H)

Programmer’s Guide BCM5722
10/15/07
Broadcom Corporation
Document 5722-PG101-R Transceiver Registers (BCM5906/BCM5906M) Page 488
Auto-Negotiation Advertisement Register
Next Page
The PHY core supports Next Page function.
Remote Fault
Writing a 1 to bit 13 of the Advertisement register causes a remote fault indicator to be sent to the link partner during auto-
negotiation. Writing a 0 to this bit or resetting the chip clears the Remote Fault transmission bit. This bit returns the value
last written to it, or else 0 if no write has been completed since the last chip reset.
Reserved Technologies
Ignore output when read.
Pause
Pause operation for full-duplex links. The use of this bit is independent of the negotiated data rate, medium, or link
technology. The setting of this bit indicates the availability of additional DTE capability when full-duplex operation is in use.
This bit is used by one MAC to communicate pause capability to its link partner and has no effect on PHY operation.
Advertisement Bits
Bits 9:5 of the Advertisement register allow the user to customize the ability information transmitted to the link partner. The
default value for each bit reflects the abilities of the PHY core. By writing a 1 to any of the bits, the corresponding ability is
transmitted to the link partner. Writing a 0 to any bit causes the corresponding ability to be suppressed from transmission.
Table 541: Auto-Negotiation Advertisement Register (Address 04d, 04h)
Bit Name R/W Description Default
15 Next Page R/W 1 = Next page ability is enabled 0 = Next
page ability is disabled
0
14 Reserved – – 0
13 Remote Fault R/W 1 = Transmit remote fault 0
12:11 Reserved Technologies RO Ignore when read 00
10 Pause R/W 1 = Pause operation for full-duplex 0
9 Advertise 100BASE-T4 R/W 1 = Advertise T4 capability
0 = Do not advertise T4 capability
0
8 Advertise 100BASE-X FDX R/W 1 = Advertise 100BASE-X full-duplex
0 = Do not advertise 100BASE-X full-
duplex
7 Advertise 100BASE-X R/W 1 = Advertise 100BASE-X 1
6 Advertise 10BASE-T FDX R/W 1 = Advertise 10BASE-T full-duplex 0 =
Do not advertise 10BASE-T full-duplex
1
5 Advertise 10BASE-T R/W 11 = Advertise 10BASE-T
4:0 Advertise Selector Field R/W Indicates 802.3 00001
R/W = Read/Write, RO = Read only, SC = Self Clear, LL = Latched Low, LH = Latched High, LL and LH Clear after read
operation. Use default values of reserved bit(s) when writing to reserved bit(s).