Functional Block Description
3
SPRUII2 – November 2017
Copyright © 2017, Texas Instruments Incorporated
AM437x IDK Evaluation Hardware
2
Functional Block Description
The complete AM437x industrial EVM is mostly contained within a single board.
shows the
functional block diagram of the AM437x industrial EVM.
Figure 2. AM437x Industrial EVM Block Diagram
2.1
Processor
The AM437x processor is the central processor for this EVM. All the resources on the board surround the
AM437x processor to provide development capabilities for hardware and software. See the AM437x data
sheet and TRM for details about the processor. There are system configuration signals (SYSBOOT0 to
SYSBOOT18), that can be set on the EVM using resistors to define some startup parameters on the
AM437x processor. See
for more details.
2.2
Clocks
The main clock for the processor is derived from a 24-MHz crystal. An onboard oscillator in the AM437x
generates the base clock and subsequent module clocks as needed within the AM437x processor. A 32-
kHz clock for the RTC on the AM437x is derived from a 32.768-kHz crystal on the board.
