User's Manual l TQMxE39S UM 0101 l © 2019 TQ-Group
Page 10
3.4.3
Memory
3.4.3.1
LPDDR4 SDRAM
The TQMxE39S supports a memory-down configuration running at up to 2400 MT/s.
The maximum memory size is 8 Gbyte. The available memory configuration can be 2 Gbyte, 4 Gbyte or 8 Gbyte.
3.4.3.2
eMMC
The TQMxE39S supports up to 64 Gbyte on-board eMMC 5.0 flash (compatible with rev. 5.0).
Attention: eMMC OS installation
The on-board eMMC Flash requires pre-configuration via EFI Shell before OS installation
(e.g. diskpart utility)
3.4.3.3
SPI Boot Flash
The TQMxE39S provides a 128 Mbit SPI boot flash. It includes the Intel
®
Trusted Execution Engine and the uEFI BIOS.
An external SPI boot flash can be used instead of the on-board SPI boot flash.
The uEFI BIOS supports the following 1.8 V SPI flash devices on the carrier board:
Winbond W25Q128FW / GigaDevice GD25LQ128D
Ensure that the QE (Quad Enable) bit is 0. Otherwise the SPI boot flash won’t work.
3.4.3.4
EEPROM
On the TQMxE39S there can be placed a 32 kbit serial EEPROM on the I2C_GP bus. This feature is optional.
3.4.4
Real Time Clock
The TQMxE39S includes a standard RTC (Motorola MC146818B) integrated in the Intel
®
Atom
™
E3900, Intel
®
Pentium
®
N4200
and Intel
®
Celeron
®
N3350 CPU.
3.4.5
Hardware Monitor
The TQMxE39S includes an integrated Hardware Monitor to monitor the on-board temperature, board voltages and manage a
fan (GPIO5 / PWM_OUT and GPIO6 / TACHIN).
3.4.6
TQ flexible I/O configuration (TQ-flexiCFG)
The module includes a flexible I/O configuration feature, the TQ-flexiCFG.
Using the TQ-flexiCFG feature several I/O interfaces and functions can be configured via a programmable FPGA.
This feature enables the user to integrate special embedded features and configuration options in the TQMxE39S to reduce the
carrier board design effort. Here are some examples of the flexible I/O configuration:
•
GPIO interrupt configuration
•
Interrupt configuration via LPC Serial IRQ
•
Serial Port handshake signals via GPIOs
•
Integrate additional I/O functions, e.g. additional Serial, I
2
C, PWM controller or special power management
configurations
Please contact
for further information about the TQ-flexiCFG.
