BCM5208KPF Broadcom, BCM5208KPF Datasheet - Page 31

• Manufacturer Part Number: BCM5208KPF
• Manufacturer: Broadcom

Specifications of BCM5208KPF

• Number Of Receivers: 4
• Data Rate: 10/100Mbps
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3.14V
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Lead Free Status / RoHS Status: Not Compliant

November 3, 1999
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AUTO-NEGOTIATION EXPANSION REGISTER
Table 12 shows the auto-negotiation expansion register bit descriptions.
PARALLEL DETECTION FAULT. Bit 4 of the Auto-Negotiation Expansion Register is a read-only bit that gets latched high
when a parallel detection fault occurs in the Auto-Negotiation state machine. For further details, please consult the IEEE
standard. The bit is reset to “0” after the register is read, or when the chip is reset.
LINK PARTNER NEXT PAGE ABLE. Bit 3 of the Auto-Negotiation Expansion Register returns a “1” when the Link Partner
has Next Page capabilities. It has the same value as bit 15 of the Link Partner Ability Register.
NEXT PAGE ABLE. The BCM5208 does not have Next Page capabilities, thus it always returns “0” when bit 2 of the Auto-
Negotiation Expansion Register is read.
PAGE RECEIVED. Bit 1 of the Auto-Negotiation Expansion Register is latched high when a new Link Code Word is
received from the Link Partner, checked, and acknowledged. This bit is cleared when the link is lost or the chip is reset.
LINK PARTNER AUTO-NEGOTIATION ABLE. Bit 0 of the Auto-Negotiation Expansion Register returns a “1” when the
Link Partner is known to have Auto-Negotiation capability. Before any Auto-Negotiation information is exchanged, or if the
Link Partner does not comply with IEEE Auto-Negotiation, the bit returns a value of “0”.
AUTO-NEGOTIATION NEXT PAGE REGISTER
The BCM5208 does not implement the Next Page function, and thus the Next Page Transmit Register is not accessible.
See Table 13 for the bit description.
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BIT
15:5
4
3
2
1
0
Note: R/W = Read/Write, RO = Read only, SC = Self Clear, LL = Latched Low, LH = Latched High, (LL and LH clear after
read operation)
BIT
15:0
NAME
Reserved
Parallel Detection Fault
Link Partner Next Page Able
Next Page Able
Page Received
Link Partner Auto-Negotiation
Able
NAME
Reserved
Table 12: Auto-Negotiation Expansion Register (Address 06d and 06h)
Table 13: Next Page Transmit Register (Address 07d, 07h)
R/W
RO
RO
LH
RO
RO
RO
RO
LH
R/W
RO
B r o a d c o m C o r p o r a t i o n
DESCRIPTION
Ignore when Read
1 = Parallel Detection fault.
0 = No Parallel Detection fault
1 = Link Partner has Next Page capability
0 = Link Partner does not have Next Page
0 = BCM5208 does not have Next Page capability
1 = New page has been received
0 = New page has not been received
1 = Link Partner has Auto-Negotiation capability
0 = Link Partner does not have Auto-Negotiation
DESCRIPTION
(not implemented)
n BCM5208
DEFAULT
0
0
0
0
0
DEFAULT
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