Datasheet

MT-X1S Manual
Overview
Overview
Introduction
The MT-X1S is a flexible USB development board for the Atmel ATxmega128a1
microcontroller. Included is a MicroSD card slot, 32KB SPI SRAM, audio amplifier, lowside / relay
driver, temperature sensor, RS-232 or RS-485, 4 LEDs, and an onboard 1.25V precision reference for
the ADC. This reference is setup to work with the XMEGA errata. The XMEGA can be programmed
over USB using the onboard AVRISP mkII compatible PDI programmer. The XMEGA can
communicate with a computer using the onboard USB to serial bridge. Speeds up to 2Mbps are
supported in synchronous mode (1Mbps in asynchronous mode). The Atmel AT90USB162 USB AVR,
which provides these features, will automatically sleep when USB is disconnected. The board can be
powered via USB or an external header. Voltage is regulated by a 3.3V, 1A LDO regulator. There are
several clock options available onboard, including a 32.768KHz crystal, an external clock, an external
HC49 crystal landing, and several internal clock options. Most XMEGA pins are routed to headers.
The included peripheral devices are connected to the XMEGA via solder jumpers, which allows use of
the pins if the device is not used. A demo program is preinstalled on the XMEGA demonstrating use of
each peripheral device, as well as demonstrating sleep mode. Additionally, an Atmel Studio 6 ASF
template is provided. All software used on both the XMEGA and USB AVR is open-source.
MT-X1S Features
● Atmel XMEGA 128A1U or 128A1(chip rev. H), 128KB flash, 8KB RAM
● Onboard USB PDI programmer (no external programmer needed)
● AVRISP mkII compatible
● Program flash, EEPROM, fuses, lock bits, and more
● Works with AVR Studio 4 and 5, Atmel Studio 6, AVRDUDE, Codevision, and BASCOM
● USB - Serial Bridge
● Up to 2MHz baud rate (1MHz async)
● Synchronous or asynchronous operation
● Optional USB ready signal
● 3.3V, 1A LDO regulator
● Powered via USB or external header
● 32.768KHz crystal connected to TOSC (RTC) pins
● HC49 crystal landing connected to XTAL pins
● Most pins routed to headers (Port A through Port K)
● Solder jumpers can be used to disconnect devices when not used (frees up header pin)
● MicroSD card slot with push-push spring action
● 32KB SPI SRAM chip
● 8 channel lowside / relay driver with kickback protection
● Up to 70mA per channel
● 5V or 3.3V devices (relays, LCD backlights, etc.)
● Can be used as general purpose lowside driver
January 29, 2015 4 http://www.mattairtech.com/