BCM5208KPF Broadcom, BCM5208KPF Datasheet - Page 30

• 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

n BCM5208
.
AUTO-NEGOTIATION LINK PARTNER (LP) ABILITY REGISTER
Table 11 shows the auto-negotiation link partner ability register bit descriptions.
Note that the values contained in the Auto-Negotiation Link Partner Ability Register are only guaranteed to be valid once
Auto-Negotiation has successfully completed, as indicated by bit 5 of the MII Status Register.
NEXT PAGE. Bit 15 of the Link Partner Ability Register returns a value of “1” when the Link Partner implements the Next
Page function and has Next Page information that it wants to transmit. The BCM5208 does not implement the Next Page
function, and thus ignores the Next Page bit, except to copy it to this register.
ACKNOWLEDGE. Bit 14 of the Link Partner Ability Register is used by Auto-Negotiation to indicate that a device has
successfully received its Link Partner’s Link Code Word.
REMOTE FAULT. Bit 13 of the Link Partner Ability Register returns a value of “1” when the Link Partner signals that a
remote fault has occurred. The BCM5208 simply copies the value to this register and does not act upon it.
RESERVED BITS. Ignore when Read.
PAUSE. Indicates that the link partner pause bit is set.
ADVERTISEMENT BITS. Bits 9:5 of the Link Partner Ability Register reflect the abilities of the Link Partner. A “1” on any
of these bits indicates that the Link Partner is capable of performing the corresponding mode of operation. Bits 9:5 are
cleared any time Auto-Negotiation is restarted or the BCM5208 is reset.
SELECTOR FIELD. Bits 4:0 of the Link Partner Ability Register reflect the value of the Link Partner’s selector field. These
bits are cleared any time Auto-Negotiation is restarted or the chip is reset.
Page 22
BIT
15
14
13
12:11
10
9
8
7
6
5
4:0
NAME
LP Next Page
LP Acknowledge
LP Remote Fault
Reserved Technologies
LP Advertise Pause
LP Advertise 100BASE-T4
LP Advertise 100BASE-X
FDX
LP Advertise 100BASE-X
LP Advertise 10BASE-T FDX
LP Advertise 10BASE-T
Link Partner Selector Field
Table 11: Auto-Negotiation Link Partner Ability Register (Address 05d, 05h)
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
B r o a d c o m C o r p o r a t i o n
DESCRIPTION
Link Partner next page bit
Link Partner acknowledge bit
Link Partner remote fault indicator
Ignore when Read
Link Partner has Pause Capability
Link Partner has 100BASE-T4 capability
Link Partner has 100BASE-X FDX capability
Link Partner has 100BASE-X capability
Link Partner has 10BASE-T FDX capability
Link Partner has 10BASE-T capability
Link Partner selector field
Document 5208-DS03-R¥¥¥¥¥
November 3, 1999
DEFAULT
0
0
0
000
0
0
0
0
0
0
00000