Microsd + Minisim Combo Slot - Seco SBC-C41-pITX User Manual

CLK_REQ0#: PCI-e Clock request. Bidirectional signal, electrical level +3.3V_ALW with a 10KΩ pull-up resistor
SUS_CLK: 32.768kHz Clock provided by the SBC-C41-pITX board to the module plugged in the slot CN15. +3.3V_ALW electrical level.
PLT_RST#: Reset Signal that is sent from the SoC to all PCI-e devices available on the board (i.e. the GbE controllers and the modules plugged in the CN14 slot). It
is a 3.3V active-low signal with 100kΩ pull-down.
KEYE_W_DISABLE1#: M.2 Key E module disable signal #1, 3.3V_ALW active low output
KEYE_W_DISABLE2#: M.2 Key E module disable signal #2, 3.3V_ALW active low output
3.3.9

microSD + miniSIM Combo Slot

Pin Signal Pin
S1 UIM_PWR
S2 UIM_RST#
S3 UIM_CLK
S4 GND
S5 ---
S6 UIM_DATA
T1 SDIO_DAT2 ST1
T2 SDIO_DAT3 ST2
SDIO_CD#: Card Detect Input.
SDIO_CLK: SD Clock Line (output).
SDIO_CMD: Command/Response bidirectional line.
SD_DATA[0÷3]: SD Card data bus. SD_DATA0 signal is used for all communication modes. SD_DATA[1÷3] signals are required for 4-bit communication mode.
SDIO_VDD: +3.3V_ALW SD dedicated Power rail
SBC-C41-pITX
SBC-C41-pITX User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R./S.B. - Reviewed by M.B. Copyright © 2021 SECO S.p.A.
CN13
Signal
T3 SDIO_CMD
T4 SDIO_VDD
T5 SDIO_CLK
T6 GND
T7 SDIO_DAT0
T8 SDIO_DAT1
SDIO_CD#
GND
On SBC-C41 board there is also a socket, for the use of standard SD
cards, to be used as Mass Storage Device and/or Boot Device.
Moreover, SBC-C41 board can accept also miniSIM cards, for use of
M.2 Key B modems.
Both these cards can be inserted in the dedicated slot of connector
CN13, which is a combo μSD/MMC + miniSIM connector, push-push
type, 2.7 mm global height, type AVX p/n 009162006501150 or
equivalent. Pinout here reported is related only to signal routing on specific connector; internally
the pin-out is the same of any standard SD/MMC 4.0 and miniSIM card.
For ESD protection, on all signal lines are placed clamping diodes for voltage transient
suppression.
Signals related to UIM (SIM) card are described in paragraph 3.3.7 for description
related to SD cards are the following:
Signals
.
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