Adlink LEC-iMX6 User Manual download pdf (Page 19)

Interfaces 15

LEC-iMX6

3.17 eMMC Interface

The LEC-iMX6 provides one eMMC NAND Flash memory chip with up to 64GB storage capac-

ity, accessible from the baseboard and brought out from the CPU through the SDMMC pins on

the SMARC connector. The eMMC interface has an 8-bit width and complies with the MMC sys-

tem specification.

3.18 GPIO

The LEC-iMX6 provides 12 GPIO signals. Seven signals (GPIO 4, 5, 6, 8, 9, 10, 11) are gener-

ated by the 9535A GPIO expander, and the remaining five signals (0, 1, 2, 3, and 7) originate

from the iMX6 CPU and are designated for CAM0 and CAM1 (PWR and RST). The GPIO sig-

nals can be utilized for General Purpose IOs as well as camera enable pins and camera field

input, as defined in the SMARC specification.

3.19 AFB Alternate Function Block

The AFB is used for an MLB (Media Local Bus) interface. The MLB is only supported in auto-

motive and consumer parts.

3.20 LPC Debug

A 40-pin, front flip, DB40 connector allows access to debug and update the U-Boot boot loader,

BMC, and OS code on the module. (Refer to “Debug (DB40)” on page 19.)

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Adlink LEC-iMX6 User Manual Page 19