Embest Technology
Copyright © 2014-2015 Embest Technology SBC9000 User Manual
7
Chapter 2 Introduction to
Hardware
This chapter will give you a general understanding of the hardware system of SBC9000 by
introducing CPU, peripheral ICs and pin definitions of the on-board interfaces.
2.1 CPU Introduction
i.MX 6Quad
is an ARM™ Cortex-A9-based quad-core processor from Freescale. It runs at
up to 1GHz, integrates 2D/3D graphics, 3D 1080p video processor and power
management, and provides 64-bit DDR3/LVDDR3/LVDDR2-1066 interfaces as well as
many other interfaces such as high-definition display and camera.
2.1.1 Clocks
The clock signals of i.MX 6Quad include a 32.768 KHz RTC clock and a 24 MHz external
clock;
RTC
Clock:
generated by an external crystal for low-frequency calculation;
External Clock:
used to generate main clock signal for PLL, CMM and other
modules;
2.1.2 Reset Signal
Reset signal is determined by POR_B of CPU; low level validates resetting.
2.1.3 General Interfaces
General interfaces include 7 sets of GPIOs, each of which provides 32 dedicated GPIO
pins (except GPIO7 which has 14 pins), and therefore the total pin number of GPIO can
be up to 206.
2.1.4 Display Interface
