User's Manual, or due to usage of erroneous or incomplete information, are exempted, as long as there is no proven intentional or negligent fault of TQ-Systems GmbH. TQ-Systems GmbH explicitly reserves the rights to change or add to the contents of this User's Manual or parts of it without special notification.
Handling and ESD tips General handling of your TQ-products The TQ-product may only be used and serviced by certified personnel who have taken note of the information, the safety regulations in this document and all related rules and regulations. A general rule is: do not touch the TQ-product during operation. This is especially important when switching on, changing jumper settings or connecting other devices without ensuring beforehand that the power supply of the system has been switched off.
More UARTs All useful AM335x signals are routed to the TQMa335xL pads. There are no restrictions for customers using the TQMa335xL with respect to an integrated customised design. Please take note of that not all listed interfaces can be used simultaneously.
The following illustration shows the AM335x processor family block diagram: Illustration 3: Block diagram AM335x (Source: Texas Instruments) 3.2.1.1 AM335x derivatives Depending on the TQMa335xL version, one of the following AM335x derivatives is assembled: Table 2: AM335x derivatives Description Part number Clock AM335x mask junction...
After power-up the boot code initialises the hardware and then loads the program image from the selected boot device. The integrated eMMC can be selected as standard boot device for the TQMa335xL. More external boot devices are available as an alternative to eMMC.
With bits SYSBOOT[15:14] and SYSBOOT[5] some general settings are carried out, independent from the boot device. The value in the following table printed in bold is used on account of the 24 MHz oscillator assembled on the TQMa335xL. The bits SYSBOOT[15:14] set the frequency of the oscillator.
Memory 3.2.2.1 DDR3L SDRAM The TQMa335xL is equipped with one DDR3L SDRAM chip with a data bus width of 16 bits. The AM335x supports 303 to 400 MHz bus clock. In the BSP provided by TQ-Systems GmbH the memory is clocked with 400 MHz.
The accuracy of the RTC is mainly determined by the characteristics of the quartz used. The 32.768 kHz crystal type FC-135 used on the TQMa335xL has a standard frequency tolerance of ±20 ppm @ +25 °C. (Parabolic coefficient: max. –0.04 × 10 –6...
3.2.4.1 Overview The TQMa335xL provides interfaces with primary function. These can be used simultaneously independent from its configuration. If a secondary function (e.g. MII0) is required, some primary functions may be omitted. More information regarding availability and pinout can be found in the AM335x Data Sheet (1) and the AM335x Reference Manual (3).
Gigabit Ethernet MAC The AM335x provides a 10/100/1000 Mbit MAC Core. Two Ethernet interfaces are routed to the TQMa335xL pads using the 3-port switch. The switch supports two MII, RMII and RGMII. The following table shows the signals used. Table 13:...
3.2.4.4 MMC / SD card An SD card can be connected to the TQMa335xL. The MMC0 controller is routed to the TQMa335xL pads for this purpose. The MMC0 interface supports SD and SDIO as well. The following table shows the signals used by the SD card interface.
3.2.4.8 Touch and analog inputs The AM335x provides analog inputs including a touch interface. These inputs are routed to the TQMa335xL pads. For the analog inputs a reference voltage of 1.8 V ±3 % is provided on the TQMa335xL. The following table shows the signals used by the analog interface.
The supported standards, transfer modes and rates of the following interfaces are to be taken from the AM335x Data Sheet (1). 3.2.4.11 The AM335x provides two integrated CAN controller. The signals of both CAN controllers are routed to the TQMa335xL pads. The drivers have to be integrated on the carrier board.
Page 19 3.2.4.13 I2S / AUDMUX The Multichannel Audio Serial Port 0 (MCASP0) is routed to the TQMa335xL pads to connect an audio-codec via I The following table shows the signals used by the AUD3 interface. Table 25: MCASP0 signals...
USB1_DP USB1_DP USB1_DRVBUS USB1_DRVBUS USB1_ID USB1_ID USB1_VBUS USB1_VBUS 3.2.4.20 EXTINT# The signal EXTINT# of the AM335x is routed to TQMa335xL pad A12. Table 31: EXTINT# signal TQMa335xL pad Signal Dir. AM335x ball Remark EXTINT# (NMI#) EXTINT# Routed to NMI# of AM335x...
Warm-Reset# of the AM335x • WARMRST# 10 kΩ PU to 3.3 V on the TQMa335xL • Low-active signal • The reset output of the supervisor used on the TQMa335xL can be connected to the POR_B input of the AM335x as a placement option.
More information can be found in the AM335x Reference Manual (3). 3.2.7 Power supply 3.2.7.1 Main power supply The input voltage for the TQMa335xL is 3.3 V ±3 %. All I/O voltages have a fixed supply voltage of 3.3 V. VCC1 VCC2 VCCn LGA pads PMIC 3.3 V...
The TQMa335xL is available with several voltage supervision options. On the primarily manufactured version of the TQMa335xL a MAX803 with a trigger level of 3.08 V monitors the supply voltage. Below 3.08 V a PORESET# is triggered at the AM335x.
The electrical and pin characteristics are to be taken from the AM335x (1), (3) and PMIC Data Sheet (6). 3.3.2 Pinout TQMa335xL The TQMa335xL has a total of 209 pads. The following table shows the pad-out as top view through the TQMa335xL. (NC: the pad does not exist.) Table 38:...
Support Wiki for the TQMa335x. MECHANICS TQMa335xL dimensions and footprint The overall dimensions (length × width) of the TQMa335xL are 38 × 38 mm The maximum height of the TQMa335xL above the carrier board is approximately 3.3 mm. Illustration 12: TQMa335xL dimensions (1)
Page 34 Climatic and operational conditions The temperature range, in which the TQMa335xL works reliably, strongly depends on the installation situation (heat dissipation by heat conduction and convection); hence, no fixed value can be given for the whole assembly. In general, a reliable operation is given when following conditions are met: Table 41: Climate and operational conditions extended temperature range –25 °C to +85 °C...
By environmentally friendly processes, production equipment and products, we contribute to the protection of our environment. To be able to reuse the TQMa335xL, it is produced in such a way (a modular construction) that it can be easily repaired and disassembled. The energy consumption of this subassembly is minimised by suitable measures. The TQMa335xL is delivered in reusable packaging.
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