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Table 10: On-board LEDs.


On-board Push Buttons

ButtonSignalB2BDescription and Notes
S1ONKEYJ1-148Power Button, pulled up, on push de-asserted
S3RESETREQJ1-150User LED pulled up, on push de-asserted

S2

S2J1-124PL user button, pulled up, on push de-asserted
S4S4J1-126PL user button, pulled up, on push de-asserted
S5MIO51J1-42

PS MIO user button, pulled up, on push de-asserted

Table 11: On-board Push Buttons.

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Power Distribution Dependencies

Regulator dependencies and max. current.

Scroll Title
anchorPD_TEB0724
titleFigure 3: Module power distribution diagram.

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User should also check related module documentation and Xilinx data sheet, respectively.

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The power-on sequence is solely controlled by the attached module.  Optional sequenzing signals for integration of additional hardware are PWR_GPIO2 and PWR_GPIO4. If the attached module uses the adjustable bank power VCCIO_35, this hat has to be powered up after the the modules SOCs powerrails are up and before any other signal is applied to the bank IOs.

Power Rails

The 1.8V and 3.3V power rails are used for the SD Card level shifter U13. The Datasheet claims to first power up 1.8V and then 3.3V.

Power Rails

InputNB! Following table with examples is valid for most of the 4 x 5 cm modules but depending on the module model and specific design, number and names of power rails connected to the B2B connectors may vary.

Power Rail Name

B2B

JM1

J1 Pins

Direction on B2B

JM2 Pins

Direction

Notes
VIN
1
154,
3
156,
5
158, 160OutputExternal main supply voltage
2, 4, 6, 8InputMain supply voltage from the carrier board
.
3.3V
-10, 12, 91OutputModule on-board 3.3V voltage supply. (would be good to add max. current allowed here if  possible)
43, 74

1.8V


63Input
VCCIO_3554Output

VLDO1

83

VLDO294

VLDO3453

VBAT

152OutputReserved for
B64_VCO9, 11-InputHR (High Range) bank voltage supply from the carrier board.

VBAT_IN

79-Input
RTC battery supply voltage from the carrier board
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.
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Table : Module Table 12 : Board power rails.

Different modules (not just 4 x 5 cm ones) have different type of connectors with different specifications. Following note is for Samtec Razor Beam™ LSHM connectors only, but we should consider adding such note into included file in Board to Board Connectors section instead of here.

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