Datasheet

AMC80EVM Hardware Overview

www.ti.com

3.4 AMC80EVM Features

This section describes some of the hardware features present on the AMC80EVM.

3.4.1 External Power and Communication Headers

The AMC80 test board contains headers and test points that allow external power and communication

sources to be used on the board. It is recommended that the SM-USB-DIG Platform not be attached when

external power and communication are used.

3.4.2 Analog Input Headers

The AMC80EVM features headers that allow connections to be made to the seven analog inputs of the

AMC80 device. In addition, the board features unpopulated surface mounts so that pull-up or pull-down

resistors may be added if required for a specific application, as shown in Figure 7.

Figure 7. Unpopulated Pull-Up and Pull-Down Resistors

3.4.3 Additional Test Points and Headers

The AMC80 test board features headers and test points connected to the AMC80 interrupts INT_IN, BTI,

GPI, and RESET_IN. This configuration allows external hardware triggering of the interrupts. In addition,

there are also test points for measuring the interrupt output pins: INT, RST/OS, and GPO. The INT and

GPO interrupt output pins are also connected to LEDs that indicate when the interrupts are active.

The AMC80EVM has a block terminal for easy access to the fan tachometer inputs. These inputs each

feature a strong pull-up resistor.

The AMC80EVM PCB also has SDA and SCL test points to monitor the I

C bus between the

SM-USB-DIG Platform and the AMC80EVM.

AMC80EVM SBOU101–March 2011

Submit Documentation Feedback