ADLINK Technology arm AMPERE COM-HPC-ALT - Page 39

COM-HPC-ALT User’s Guide PICMG COM-HPC R1.0
Page 10 Copyright © 2023 ADLINK Technology, Inc.
NBASET0_MDI0+
NBASET0_MDI1-
NBASET0_MDI1+
NBASET0_MDI2-
NBASET0_MDI2+
NBASET0_MDI3-
NBASET0_MDI3+
D88
D89
D91
D92
D93
D94
Mbps modes. Some pairs are unused in some modes, per the
following:
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.
O 3.3VSB
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.
O 3.3VSB
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.
O 3.3VSB
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.
REF
GND min
3.3V max
NBASET0_SDP
C98
NBASE-T Ethernet Controller 0 Software-Definable Pin. Can also be
used for IEEE1588 support such as a 1pps signal.
IO 3.3VSB