TechNexion PICO-IMX6UL-EMMC, Hardware Manual

Page: 35 / 55

PICO-IMX6UL-EMMC REV. A1. HARDWARE MANUAL
– VER 1.00 – MAR 28 2016
Page 35 of 54
3.11. Manufacturing and Boot Control
The PICO-IMX6UL-EMMC has a number of pins to override the default boot media present on the
PICO-IMX6UL-EMMC Compute Module or enable debug serial loader functionality.
Table 19 - Boot Selection Pins
PIN
CPU
BALL
CPU PAD NAME Signal V I/O Description
X2_3 T10 BOOT_MODE0 BOOT_MODE0 1V8 I Boot Select pin
X2_5 U10 BOOT_MODE1 BOOT_MODE1 1V8 I Boot Select pin
X2_7 B12 LCD_DATA13 BT_CFG13 1V8 I Boot Select pin
X2_9 A12 LCD_DATA14 BT_CFG14 1V8 I Boot Select pin
3.11.1. Boot Modes
The PICO-IMX6UL-EMMC Compute Module automatically boot from the internal eMMC if the above
signals keep floating. Only when Serial Downloader Mode is required the signals need to be
connected as
Table 20 - Serial Downloader Boot Mode Configuration below.
Table 20 - Serial Downloader Boot Mode Configuration
PIN CPU BALL Serial Downloader Mode
X2_3 T10 HIGH
X2_5 U10 LOW
X2_7 B12 Not Connected
X2_9 A12 Not Connected
Table 21 - Internal Downloader Boot Mode Configuration
PIN CPU BALL Internal (eMMC) Boot Mode
X2_3 T10 LOW
X2_5 U10 HIGH
X2_7 B12 Not Connected
X2_9 A12 Not Connected