Datasheet

External
Fan Header
Interrupt Output
Test Points
CH0-6
Header
10-Pin
Connector
External
Power
Interrupt Input Headers
AMC80
I C
3.3V
2
www.ti.com AMC80EVM Hardware Setup
2.1 Theory of Operation for AMC80EVM
Figure 3 shows the basic architecture of the AMC80 test board. The board requires power and I
2
C
communication with the SM-USB-DIG Platform. This configuration allows the AMC80EVM software to
communicate with the IC, as well as to simulate and monitor hardware driven interrupts via digital I/O
controllers. In addition, headers allow for application specific connections to be used on the AMC80EVM.
Figure 3. AMC80 Test Board Block Diagram
2.2 Signal Definitions of H1 (10-Pin Male Connector Socket)
Table 3 shows the pinout for the 10-pin connector socket used to communicate between the AMC80EVM
and the SM-USB-DIG Platform. It should be noted that the AMC80 test board only uses the necessary I
2
C
communication lines (pins 1 and 3) and the V
DUT
and GND (pins 6 and 8) pins to issue commands to the
AMC80.
Table 3. AMC80EVM Pin Connectors
Pin on U1 Signal Description
1 I2C_SCL I
2
C clock signal (SCL)
2 CTRL/MEAS4 GPIO: Control output or measure input
3 I2C_SDA1 I
2
C data signal (SDA)
4 CTRL/MEAS5 GPIO: Control output or measure input
5 SPI_DOUT1 SPI™ data output (MOSI)
Switchable device under test (DUT) power supply: +3.3V, +5V,
6 VDUT
Hi-Z (disconnected).
(1)
7 SPI_CLK SPI clock signal (SCLK)
8 GND Power return (GND)
9 SPI_CS1 SPI chip select signal (CS)
10 SPI_DIN1 SPI data input (MISO)
(1)
When V
DUT
is Hi-Z, all digital I/O are also Hi-Z.
5
SBOU101–March 2011 AMC80EVM
Submit Documentation Feedback
© 2011, Texas Instruments Incorporated