Apalis Carrier Board Design Guide - Toradex

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Apalis Carrier Board Design GuideX1SSATA1_RX-SATA1_RX+SATA1_TX-SATA1_TX+SATA1_ACT#Apalis - SATA19 of 25MM70-314-310B12725313335SATA1_RX_NSATA1_RX_PSATA1_TX_NSATA1_TX_PMXM3_35_MGNDC11nF50VSATA1[0..3]GNDSATA1_RX_PSATA1_RX_NGNDSATA1_TX_NSATA1_TX_PR1GND22R3.3V_SW3.3V_SWR4100KSATA1_ACT 53R3470KSATA1_ACT# 2T1BSI-1024-XX27GND6B+ (RX+)5B- (RX-)4GND3A- (TX-)2A+ (TX+)1GND04708040053.3V_SWR2120RLED1GREEN1 6GNDT1ASI-1024-X4Figure 13: SATA connector reference schematic2.3.2.2 mSATA Card Schematic ExampleMini-SATA is a standard for solid state drive cards that uses the Mini PCIe Card connector and clip.Please do not confuse mSATA with Mini PCIe Cards solid state drives. These cards feature an onmodule flash controller with PCIe interface. The pin-out is electrical compatible, but Mini PCIe Carduses the PCIe interface while the mSATA uses the SATA interface instead.Even though the pin-out of the mSATA seems to be similar to the Mini PCIe Card, there is animportant pitfall to remark. Officially, the Mini PCIe Card features the RX+ signal on pin 25 andRX- on pin 23. The mSATA interface specifies the RX+ signal on pin 23 and RX- signal on 25. ThePCIe interface supports polarity reversal, but not the SATA interface. This means that additionalcare needs to be taken to connect the SATA signals correctly to the mSATA card.Since the AC coupling capacitors for both RX and TX lines are placed on the Apalis Module, noextra serial capacitors are required on the carrier board.GNDSATA1_TX+SATA1_TX+HSOp(0)TXSATAHostRXModuleConnectorSATA1_TX-2x 10nFSATA1_RX+SATA1_RX-SATA1_TX-SATA1_RX+SATA1_RX-HSOn(0)HSIp(0)HSIn(0)mSATA SlotConnector (Mini PCIe Card)RXSATADeviceTX2x 10nFApalis Module Carrier Board mSATA ModuleFigure 14: mSATA block diagramThe mSATA pin-out features an activity indication output (pin49). This output indicates the activityof the SATA device controller similar to the SATA1_ACT# output of the Apalis module. Both signalsare designed to drive an indication LED. As the output of the mSATA card is not mandatory, it isrecommended that the SATA1_ACT# output of the Apalis module is used instead.Pin 51 of the mSATA connector can be used to detect whether an mSATA card is present. Thissignal could be used for switching the SATA/PCIe signal in mSATA/Mini PCIe Card dual design.The mSATA does not make use of the SMB interface. Therefore, the I2C1 interface does not needsto be connected to the mSATA connector.Toradex AG l Altsagenstrasse 5 l 6048 Horw l Switzerland l +41 41 500 48 00 l www.toradex.com l info@toradex.com Page | 20
Apalis Carrier Board Design GuideX1SMM70-314-310B1Apalis - SATA19 of 25SATA1_ACT#2725313335SI-1024-X3.3V1 6R3120RT1AGNDLED1GREEN2SATA1_RX_NSATA1_RX_PSATA1_TX_NSATA1_TX_P3.3V34R4GND470KT1B5SI-1024-X3.3VR5100KSATA1_mSATA_ACT#SATA1_RX_PSATA1_RX_N3.3V_mSATA3.3V_mSATASATA1_mSATA_PREDET#2030321227111323253133363835394145474951SATA1_RX-SATA1_RX+SATA1_TX-SATA1_TX+X2W_DISABLE# UIM_PWRUIM_RESETSMB_CLK UIM_CLOCKSMB_DAT UIM_VPPUIM_DATAWAKE# SIM_C8/RSVDPERST# SIM_C4/RSVDCLKREQ#LED_WWAN#LED_WLAN#REF_CLK- LED_WPAN#REF_CLK+1V5PCIe_RX-1V5PCIe_RX+ 1V5PCIe_TX- 3V3_AUXPCIe_TX+ 3V33V3USB_D-GNDUSB_D+GNDGNDGNDCOEX1GNDCOEX2GNDGNDGNDRSVDGNDRSVDGNDRSVDGNDRSVDGNDRSVDGNDRSVDGND67910-570081412161017194244466284824252491518212627293435374043501.5V1.5V1.5V3.3V_mSATA3.3V_mSATA3.3V_mSATAGNDMini PCIe LatchTP1MECH13.3VC410uF10VGND3.3V_mSATAL13A33R@100MHzC510uF10VGND3.3VC210uF10VGNDPowerIC13V_IN2EN1NC4NC5NCSC4215AV_OUTFBGNDGND_PAD67 mSATA1_FB89R640.2KR720KC310uF10V1.5VC1GND100nF16V2.3.3 Unused SATA Signals TerminationApalisPinApalisSignal NameFigure 15: mSATA reference schematicRecommended Termination33 SATA1_TX+ Leave NC if not used31 SATA1_TX- Leave NC if not used25 SATA1_RX+ Preferable connect to GND if not used or leave NC27 SATA1_RX- Preferable connect to GND if not used or leave NC35 SATA1_ACT# Leave NC if not usedTable 6: Unused SATA signal terminationToradex AG l Altsagenstrasse 5 l 6048 Horw l Switzerland l +41 41 500 48 00 l www.toradex.com l info@toradex.com Page | 21
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Apalis Carrier Board Design Guide - Toradex

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