KSZ8462HL Datasheet, PDF (190/279 Pages) Micrel Semiconductor – IEEE 1588 Precision Time Protocol-Enabled Two-Port 10/100Mb/s Ethernet Switch with 8 or 16 Bit Host Interface

Micrel, Inc.
KSZ8462HL/KSZ8462FHL
Port 1 LPI Recovery Time Counter Register (0x0E6): P1LPIRTC
This register contains the port 1 LPI recovery time counter information.
Bit Default Value R/W Description
Port 1 LPI Recovery Time Counter
7−0 0x27 (25µs)
This register specifies the time that the MAC device has to wait before it can start to send out
RW packets. This value should be the maximum of the LPI recovery time between local device and
remote device.
Each count = 640ns.
Buffer Load to LPI Control 1 Register (0x0E7): BL2LPIC1
This register contains the buffer load to LPI control 1 information.
Bit Default Value R/W Description
LPI Terminated by Input Traffic Enable
7
0
RW 1 = LPI request will be stopped if input traffic is detected.
0 = LPI request won’t be stopped by input traffic.
6
0
RO Reserved
Buffer Load Threshold for Source Port LPI Termination
5−0
0x08
RW _{This value defines the maximum buffer usage allowed for a single port before it starts to trigger the}
LPI termination for the specific source port. (512 bytes per unit)
Port 2 Auto−Negotiation Next Page Transmit Register (0x0E8 – 0x0E9): P2ANPT
This register contains the port 2 auto−negotiation next page transmit related bits.
Bit Default R/W Description
Next Page
Next page (NP) is used by the next page function to indicate whether or not this is the last next page to be
15
0
RO ^{transmitted. NP shall be set as follows:}
1 = Additional next page(s) will follow.
0 = Last page.
14
0
RO Reserved
Message Page
Message page (MP) is used by the next page function to differentiate a message page from an
13
1
RO ^{unformatted page. MP shall be set as follows:}
1 = Message page.
0 = Unformatted page.
Acknowledge 2
Acknowledge 2 (Ack2) is used by the next page function to indicate that a device has the ability to comply
12
0
RO ^{with the message. Ack2 shall be set as follows:}
1 = Able to comply with message.
0 = Unable to comply with message.
June 11, 2014
190
Revision 1.0