ADLINK Technology arm AMPERE COM-HPC-ALT - Module Type Definition

COM-HPC-ALT User’s Guide PICMG COM-HPC R1.0
Page 27 Copyright © 2023 ADLINK Technology, Inc.
4.3.14 Module Type Definition
Name
Pin #
Description
I/O
Comment
TYPE0
TYPE1
TYPE2
A100
C100
D100
The TYPE pins indicate to the Carrier Board the Pin-out Type that is implemented on the
Module. The pins are tied on the Module to either ground (GND) or are no-connects (NC).
These pins shall be pulled up on the Carrier, to Carrier standby voltage rail of 5V or less.
Carrier hardware reads the level on these straps.
Module Connections Meaning
Ref TYPE2 TYPE1 TYPE0
7 NC NC NC Reserved
6 NC NC GND Reserved
5 NC GND NC Reserved
4 NC GND GND Server Module – Fixed 12V input
3 GND NC NC Reserved
2 GND NC GND Reserved
1 GND GND NC Client Module - Wide Range 8V to 20V input
0 GND GND GND Client Module – Fixed 12V input
The Module shall implement all three TYPE[x] pins per the table above.
The Carrier Board should implement combinatorial logic that monitors the Module TYPE
pins and keeps power off (e.g deactivates the ATX PS_ON# signal to an ATX power supply
or otherwise deactivates VCC to the COM-HPC Module) if an incompatible Module pin-out
type is detected. All three TYPE[x] pins should be monitored by the Carrier. The Carrier
Board logic may also implement a fault indicator such as an LED.
Server Module – Fixed 12V input