MAXQ610-KIT# Maxim Integrated, MAXQ610-KIT# Datasheet - Page 5

• Manufacturer Part Number: MAXQ610-KIT#
• Description: Development Boards & Kits - Other Processors MAXQ610 Eval Kit
• Manufacturer: Maxim Integrated

Specifications of MAXQ610-KIT#

• Rohs: yes
• Part # Aliases: 90-M6100#KIT

This EV kit must be used in conjunction with the follow-
ing documents:
• MAXQ Family User’s Guide
• MAXQ Family User’s Guide: MAXQ610 Supplement
• MAXQ610 Data Sheet
• MAXQ610 EV Kit Data Sheet (this document)
These documents are available on the CD provided
with the MAXQ610 EV kit, and are also available on the
Maxim website at www.maxim-ic.com/MAXQ610-KIT.
For a step-by-step guide to using your MAXQ610 EV kit
for the first time, refer to Application Note 4314: Getting
Started with the MAXQ610 Evaluation Kit and IAR’s
Embedded Workbench , included on the EV kit CD. This
application note covers jumper settings, cable connec-
tions, software configuration, and the steps necessary
to quickly begin developing and executing programs
using this EV kit.
The MAXQ610 EV kit board is fully defined in the
schematic (Figure 3). A short description of the major
sections and functions of the board follows.
The MAXQ610 EV kit board can be powered directly
using an external DC power supply applied to connec-
tor J3. A regulated 5V (±5%), 300mA, center positive,
2.5mm power supply is required. The EV kit board
includes a regulator to supply 3.3V power to its circuitry.
The serial-to-JTAG board can also be used to provide
5.0V power to the EV kit board (connector P5 pin 8).
This capability is enabled by installing jumper JH26 on
the EV kit board and jumper JH3 on the serial-to-JTAG
board and applying power to J2 of the JTAG board. In
this configuration, an external power source should not
be applied to connector J3.
_______________________________________________________________________________________
Detailed Description
Power Supply
MAXQ610 Evaluation Kit
The MAXQ610 microcontroller provides a dedicated IR
timer/counter module to simplify support for IR commu-
nication. The IR timer/counter implements two pins
(IRTX and IRRX) for supporting IR transmit and receive,
respectively. The IRTX output pin can be manipulated
high or low using the IRTXOUT bit of the power control
register (PWCN) when the IRTX function is not enabled.
However, the IRTX pin has no corresponding port pin
designation, so the standard port direction (PD), port
output (PO), and port input (PI) control status bits are
not present.
The MAXQ610 EV kit board includes circuitry for both
receiving and transmitting IR signals. The IR source is
diode D1. Its anode is connected to the board’s VDD
supply through an 82Ω resistor, and its cathode is con-
nected to the MAXQ610’s IRTX pin (pin 39) when
jumper JH15 is installed. The IR receiving circuitry con-
sists of silicon PIN photodiode D2 and an npn bipolar
transistor with biasing resistors. The photodiode D2 is
intended for IR applications in the 700nm to 1100nm
range, and the transistor is configured as a common
emitter amplifier for the diode. Its collector is connected
to the processor’s IRRX pin (when JH16 is installed),
and the emitter is connected to the processor’s P0.7
(TBB1, pin 10) pin when jumper JH17 is installed. This
allows the processor’s port pin to be used as an IR
receiver-enable signal.
The MAXQ610 EV kit board contains a number of
jumpers to configure its operation. Table 1 describes
the jumpers and their function.
The MAXQ610’s serial ports are both connected to RS-
232 level translators, and these RS-232 level signals
are connected the DB-9 connectors (J1 and J2). A
number of jumpers are used to connect various serial
signals to the level translator and configure its opera-
tion. Table 1 describes these jumper functions.
Infrared (IR) Interface
Serial Port Interface
Jumper Functions
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