SYS TEC electronic GmbH
L-1589e-04
Hardware Manual ECUcore-1021
Page 14/30
Classification: Release
2.4
Module connector and pin assignment
This chapter describes the module pin and connector configuration. The connector on the module side is
called receptacle, the connector on the Carrier board is called plug-in connector.
Note: The connectors are COMexpress compatible types. However, the pin assignment and the
connector arrangement meet not the COMexpress standard!
2.4.1
Connector type for the Carrier board
The Carrier board shall use a 5mm or 8mm heights 220pin plug-in connector:
Supplier
Board-to-board stack height
Order number of supplier
Tyco Electronics
5mm
3-1827253-6
8mm
3-6318491-6
Foxconn
5mm
QT002206-2131-3H
8mm
QT002206-4131-3H
Table 4: Carrier board plug-in connector
2.4.2
Pin assignment row A and row B
The pin name corresponds to the primary pin name of the LS1021A called by NXP, unless there is only
an alternative function available. In this case the pin name corresponds to the alternative function only.
For description of primary and alternative function see the NXP data sheets.
A pin configuration is defined by the Reset Configuration Word (RCW). The RCW is pre-installed
according to the ordered module variant (see chapter 2.1).
In contrast to the description in the NXP data sheet and Reference Manual, the active-low signals are
denoted by “/” (example: UART2_RTS_B (NXP manual) is denoted as UART2_/RTS).
The module has two primary power supply domains (DVDD, D1VDD) and several domains that are on-
board generated (BVDD, EVDD, OVDD, O1VDD, ...). For every pin, the corresponding voltage domain is
specified. An internal pull-up resistor is connected to this voltage domain then. Signals that relates to
voltage domains lower than 3.3V are marked with the voltage value in the signal name.
For every pin, the recommendations of the manufacture must be noted. The information in the
data sheet of LS1021A must be observed.
