EEPROM
Config headers
DS280MB810
(top view)
I2C debug
header
3.3V
(Optional)
GND
2.5V
Test loops for
supplies close
to device
2.5v
Reg
Disable
LED
LED
USB
A1
RX0 RX1 RX2 RX3 RX4 RX5 RX6 RX7
TX0 TX1 TX2 TX3 TX4 TX5 TX6 TX7
REFCLK in
SMA
25
MHz
REFCLK out
SMA
MSP430
On
Off
SMBus Address
and
3.3V
Æ
2.5V
regulator
Setup
4
SNLU213A – October 2016 – Revised September 2019
Copyright © 2016–2019, Texas Instruments Incorporated
DS280MB810EVM User’s Guide
4
Setup
This section describes the jumpers and connectors on the EVM as well as how to connect, set up, and
use the DS280MB810EVM.
Figure 2. DS280MB810EVM Block Diagram.
4.1
Modes of Programmable Communication
The DS280MB810EVM can be programmed in one of two modes:
1.
SMBus Mode
– Provides full access to the DS280MB810 status and control settings via the on-board
USB2ANY. ADDR0 and ADDR1 pins are used to set the SMBus slave address.
2.
External EEPROM
– Provides access to the DS280MB810’s EEPROM programmable control settings
via an 8 pin EEPROM. Only a subset of SMBus slave register bits is written to EEPROM. The
EEPROM can program up to 16 slave devices.
For convenient use, a USB-to-Mini cable provides a direct connection via J27.