MAX7349EVKIT Maxim Integrated, MAX7349EVKIT Datasheet - Page 3

• Manufacturer Part Number: MAX7349EVKIT
• Description: Interface - Specialized Evaluation Kit for the MAX7349/Emulates
• Manufacturer: Maxim Integrated
• Series: MAX7347, MAX7348, MAX7349r

Specifications of MAX7349EVKIT

• Product Type: Interfaced Low EMI Key Switch

Table 1. Jumper Functions
*Default configuration.
5) Verify that the EV kit’s LED1 is lit, indicating that the
6) Start the EV kit software by clicking its icon in the
7) The software automatically connects to the board
_______________________________________________________________________________________________________
JUMPER
JU10
JU11
JU1
JU2
JU3
JU4
JU5
JU6
JU7
JU8
JU9
device driver Maxim uses does not contain a digital
signature. This is not an error condition. It is safe to
proceed with the installation.
USB is connected and providing power.
Windows Start menu.
after a few seconds.
trace cut open
trace cut open
Pins 1 and 2*
Pins 1 and 2*
Pins 1 and 2*
Pins 1 and 2*
Pins 1 and 2*
Pins 1 and 2*
Not installed*
Not installed*
Pins 1 and 2*
Pins 1 and 2*
Not installed*
Pins 3 and 4
Pins 5 and 6
Pins 7 and 8
Pins 2 and 3
Pins 2 and 3
Pins 2 and 3
Pins 1 and 2
LOCATION
PC board
PC board
No shunt
No shunt
No shunt
No shunt
No shunt
No shunt
SHUNT
AD0 = GND; I
AD0 = SCL; I
AD0 = VDD; I
AD0 = SDA; I
Pizeo Sounder. P1 driven directly by SOUNDER output.
P i zeo S ound er . P 1 d r i ven thr oug h op ti onal acti ve fi l ter ci r cui t. Req ui r es i nstal l i ng U 6 and other com p onents.
ALERT Input. Connected to VDD.
ALERT Input. Connected to GND.
ALERT Input. Must be connected to an external drive signal.
SDA. Connected to on-board I
SDA. Must be connected to an external I
SCL. Connected to on-board I
SCL. Must be connected to an external I
INT. Pulled up to on-board VDD supply.
INT. Pulled up to external INTVDD supply.
Invalid Configuration. Do not use.
V
V
V
V
SDA. Connected to on-board pullup resistor.
SDA. Pullup resistor must be provided externally.
SCL. Connected to on-board pullup resistor.
SCL. Pullup resistor must be provided externally.
JTAG Power. Not connected to USB power.
JTAG Power. Connected to USB power.
DDIO
DDIO
DD
DD
= V
Power to MAX7349. Must be provided externally. V
. Must be provided externally. 2.5V < V
= 2.5V from U3
DDIO
2
2
2
2
C address 0x7C / 0x7E
C address 0x78 / 0x7A
C address 0x74 / 0x76
C address 0x70 / 0x72
2
2
C bus.
C bus
MAX7349 Evaluation Kit
8) Click the Initialize EV kit button to write the power-
9) On the EV kit board, press the buttons in the
2
2
C bus
C bus.
up command and configure default settings for
demonstration. This button writes to three registers:
Write(0x04 configuration) = 0xF8; Write(0x01
debounce) = 0x3F; and Write(0x03 interrupt) = 0x10.
KEY0–KEY55 matrix. Verify that the key scan codes
are reported in the software’s history window after 5
to 6 keypress events are queued, depending on the
debounce time and interrupt register settings. The
DDIO
FUNCTION
< 3.6V.
DD
≤ V
DDIO
.
3