Datasheet

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SD Card Interface
August 2016 Intel® Joule™ Datasheet
Document number: 566641 rev. 1.0 Page 17
6 SD Card Interface
6.1 SD card interface features
· Host clock up to 208 MHz (SDR 104)
· Supports card detection (insertion/removal) with dedicated card detection signal
· Meets SD Host Controller Standard Specification version 3.0
· Meets SD Physical Layer Specification version 3.01
· Only supports SD memory
· Supports 1.8v signal levels directly; requires an external level shifter to support devices that operate above 1.8V
6.1.1 SD card signal group specifications
The Intel Joule module provides a SD Card interface through the board-to-board connectors for expansion board usage.
Refer to the Intel® Joule™ Expansion Board Design Guide for the specifications and PCB routing guidance for this interface.
7 Module Connectors
The Intel® Joule™ module utilizes two separate, board-to-board connectors, (J6 & J7) to break out system buses, power and
GPIO signals while two additional connectors (JCAM1 & JCAM2) are dedicated to MIPI-CSI devices.
· All I/O signals are 1.8V with the exception of USB, CSI, DSI and PCIe which adhere to their respective standards.
· Module connectors J6 and J7 (2x50) are common with Hirose Electric Co LTD* Part Number DF40C-100DP-0.4V and
mate with Hirose Electric Co LTD* Part Number DF40C-100DS-0.4V, or compatible.
· JCAM1 and JCAM2 dedicated to MIPI cameras via 2x20 Hirose Part Number BM14B(0.8)-40DS-0.4V(51)* connectors
− Mating connector for camera module Flex Printed Circuit Board attach: Hirose BM14B(0.8)-40DP-0.4V(51)*
7.1 Module dimensions
See the Intel® Joule™ Platform Mechanical Descriptor for complete module and connector dimensions.
Figure 2 Module physical connectors