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Refer to https://shop.trenz-electronic.de/de/Download/?path=Trenz_Electronic/carrier_boards/TEBA0841 for downloadable version of this manual and additional technical documentation of the product.

The Trenz Electronic TEBA0841 Carrier Board is a base-board for 4 x 5 SoMs, which is dedicated to test- and evaluation-purposes of , especially for the Multi-gigabit transceiver units of Trenz Electronic 4x5 SoMsthe TE0841 and TE0741 modules. Although this base-board is dedicated to these modules, it is also compatible with other Trenz Electronic 4 x 5 cm SoMs. See page "4 x 5 cm carriers" to get information about the SoMs supported by the TEBA0841 base-board.

This base-board provides also soldering-pads as place-holders for pin-headers as option to get access to the PS- and PL-IO-banks of the mounted SoM.
See page "4 x 5 cm carriers" to get information about the SoMs supported by the TEBA0841 Carrier Board.

Block Diagram

Figure 1: TEBA0841-01 Block Diagram

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1. Samtec Razor Beam™ LSHM-150 B2B connector JB1
2. Samtec Razor Beam™ LSHM-150 B2B connector JB3
3. Samtec Razor Beam™ LSHM-130 B2B connector JB2
4. 6-pin header J26 for selecting VCCIOA PL IO-bank supply-voltage VCCIOA
5. 6-pin header J27 for selecting VCCIOD PL IO-bank supply-voltage VCCIOD
6. Micro USB Connector J12 (Device or OTG mode)
7. JTAG header, connected to JTAG interface of 4 x 5 Module (/UART header with 'XMOD FTDI JTAG Adapter'-compatible pin-assignment)
8. User LED D1 (green)
9. User LED D2 (red)
10. SFP+ Connector J1
11. 50-pin header soldering-pads J17 for access to SoM's IO-banks (LVDS-pairs possible)
12. 50-pin header soldering-pads J20 for access to SoM's IO-banks (LVDS-pairs possible)
13. 16-pin header soldering-pads J3, 'XMOD FTDI JTAG Adapter'-compatible pin-assignment with 2 additional pins for reference-clock input to 4x5 SoM
14. 10-pin header soldering-pads J4 for access to SoM's SDIO-port (voltage translation via SDIO Port Expander necessary), if available

Key Features

• SFP+ connector (Enhanced small form-factor pluggable), supports data transmission rates up to 10 Gbit/s
• Micro-USB-Interface (J10) connected to Zynq-module (Device or OTG mode)
• Trenz 4x5 module Socket (3 x Samtec LSHM series connectors)
• 4x5 SoM programable by JTAG header (JX1)
• 2 x user LEDs routed to MIOIO-pins of the SoM
• Soldering-pads J17 and J20 as place-holder for further possibilities to access to SoMs IO-bank-pins, usable as LVDS-pairs
• Soldering-pads J3 and J4 as place-holder for access to JTAG/UART- or SDIO-port of the SoM
  

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The RX-/TX-data-lanes are connected to B2B-connector JB2, the control-lines are connected to to module's IO-pins on B2B-connector JB1 and are MIO(MIO0-bank-pins in standard TE module's pin-assignment).

On this SFP+ connector, on both 4 x 5 SoMs TE0741 and TE0841 MGT-lane 3 is accessible.

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The TEBA0841 Carrier Board is mainly for the 4 x 5 SoMs TE0841 and TE0741. This SoMs have GTX-Transceiver units on their FPGA-modules with up to 8 available MGT-lanes. To test this MGT-lanes, the 5 RX/TX differential pairs are bridged on-board, hence the transmitted data on this MGT-lanes are received simultaneously by the same MGT-lane in a loop-back circuit..

The MGT-lane pins are bridged on-board as fellows, if 4 x 5 SoM TE0741 is mounted:

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The TEBA0841 carrier board has one physical USB-connector J10, which is available as Micro-USB port. The USB interface J10 can be operated in Device- and OTG-modes. The Micro-USB port-pins are routed to the USB-OTG-interface on B2B-connector JB2. There are usually corresponding USB-PHYs on SoMs supported by the Carrier Board TEBA0841.

JTAG/UART Interface

The JTAG-interface of the mounted 4 x 5 SoM can be accessed via header JX1. This header has a 'XMOD FTDI JTAG Adapter'-compatible pin-assignment.

Table 3: JTAG header JX1 pin-assignment

There is also the option to mount and solder a 2-row 16-pin header to the place-holder J3, which has the same pin-assignment as header JX1, but with also two additional pins (15,16) as LVDS-pair, to put an external reference clock-signal to the mounted 4 x 5 SoM. The clock-signal is put to to the SoM via B2B-connector pins JB2-32 (MGT_CLK0_N, J3-16) and JB2-34 (MGT_CLK0_P, J3-15).

On both interfaces (JX1, J3), the pins with the net-names MIO14 and MIO15 are available as user IO's which could be used as UART-interface for example.

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There are two LEDs D1 (green) and D2 (red) available to the user. The green LED D1 is connected to the pin MIO9 ( JB1-92 )with the net-name 'MIO9', the red LED D2 is connected to the pin JB3-90 with the net-name 'RLED'.

Header place-holder J4

The place-holder J4 with solder-pads to mount a 2-row 10-pin header provides the capability, to access via this header the SDIO-port of the mounted 4 x 5 SoM, if available. For this purpose, there is also voltage-translation via SDIO port expander (e.g. Texas Instruments TXS02612) necessary due to the different voltage levels of the Micro SD Card (3.3V) and MIO MIO0-bank of the Xilinx Zynq-chip (1.8V).

In other cases this can be used to access PL IO-bank-pins of the SoM.

Header place-holder J17 and J20

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