ADLINK Technology arm AMPERE COM-HPC-ALT User Manual page 39

COM-HPC-ALT User's Guide
NBASET0_MDI0+ D88 Mbps modes. Some pairs are unused in some modes, per the
NBASET0_MDI1- D89 following:
NBASET0_MDI1+ D91
NBASET0_MDI2- D92
NBASET0_MDI2+ D93
NBASET0_MDI3- D94
NBASET0_MDI3+
NBASET0_LINK_ACT# D99 NBASE-T Ethernet Controller activity indicator, active low.
20 mA or more current sink capability at VOL of 0.4V max.
20 mA or more current source capability at VOH of 2.4V min.
NBASET0_LINK_MAX# D97 NBASE-T Ethernet Controller MAX Speed Link indicator, active low. If
active, the link is established at the maximum speed that the
Ethernet controller is capable of (which may be 10G, 5G, 2.5G etc).
20 mA or more current sink capability at VOL of 0.4V max.
20 mA or more current source capability at VOH of 2.4V min.
NBASET0_LINK_MID# D98 NBASE-T Ethernet Controller MID Speed Link indicator, active low. If
active, the link is established but at a speed lower than what the
maximum speed that the Ethernet controller is capable of.
20 mA or more current sink capability at VOL of 0.4V max.
20 mA or more current source capability at VOH of 2.4V min.
NBASET0_CTREF C99 Reference voltage for Carrier Board NBASET Ethernet channel 0
magnetics center tap. The reference voltage is determined by the
requirements of the Module PHY and may be as low as 0V and as
high as 3.3V. If not needed, these pins may be left open on the
Carrier. The reference voltage output shall be current limited on the
Module. In the case in which the reference is shorted to ground, the
current shall be limited to 250 mA or less.
NBASET0_SDP C98 NBASE-T Ethernet Controller 0 Software-Definable Pin. Can also be
used for IEEE1588 support such as a 1pps signal.
Page 10 Copyright © 2023 ADLINK Technology, Inc.
O 3.3VSB
O 3.3VSB
O 3.3VSB
REF
GND min
3.3V max
IO 3.3VSB
PICMG COM-HPC R1.0