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2.2 Cable-to-Board Connection
The EM2COMIF has a 10-pin female connector, which plugs into a 10-pin male header on the device
board. The male header consists of two rows of five pins, which are connected to the programming
or configuration pins of the device. The PIN 1 side of the header is indicated through a color s stripe
on the ribbon cable.
A 10-pin surface mount header can be used for the download cable. However, Intel® recommends
using a through-hole connector in the event of the repeated insertions and removals.
Figure 3.
Connectors and Dimensions
2.3 Pin Description
The following table lists the pins of the EM2COMIF female plug and describes their functions.
Table 3.
Signal Names of the EM2COMIF Female Plug
Pin
Signal Name
1
GND
2
SCL
3
GND
4
SDA
5
GND
6
SALERT
7
POK
8
Control
9
Not used
10
Not used
The EM2CONIF is powered through the USB 5V supply. The SCL, SDA & SALERT pins are pulled up
internally to a 3.3V supply via 4.7kΩ resistors. A pull-down resistor of 4.7kΩ is connected internally
between the POK and ground. A pull-down resistor of 4.7kΩ is also connected internally between the
Control pin and ground.
For PMBus communications only three pins are required to be connected, SCL, SDA and a ground pin.
14837
10-pin Female Connector
Dimensions are in inches
Supports interaction with GUI on SALERT pin for Evaluation Boards. (Not
Supports interaction with GUI on POK pin for Evaluation Boards. (Not
Supports interaction with GUI on Control pin for Evaluation Boards. (Not
Not used - Do not connect to anything
Not used - Do not connect to anything
Top View
Description
Signal ground.
PMBus Clock signal.
Signal ground.
PMBus Data signal.
Signal ground.
required for PMBus communications)
required for PMBus communications)
required for PMBus communications)
May 25, 2018
10-pin Male Header
(Device Board)
Side View
Rev A
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