MAXQ3120-KIT PDF VIEW DOWNLOAD, MAXQ3120-KIT データシート

MAXQ3120-KIT データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

メーカー

MAXQ3120-KIT

MAXQ3120 Evaluation Kit

Maxim Integrated

MAXQ3120-KIT Datasheet PDF : 9 Pages

1 2 3 4 5 6 7 8 9

MAXQ3120 Evaluation Kit

Running Both Boards from

Separate Power Supplies

To run each of the boards from its own power supply,

connect supplies as follows.

• Connect a 5V ±5% regulated DC wall supply to the

J2 power plug of the serial-to-JTAG interface board.

• Connect a 3.3V regulated bench supply to test points

VCC and GND on the MAXQ3120 EV kit board.

Note: When using two power supplies in this man-

ner, the JP3 jumper on the serial-to-JTAG board

must be DISCONNECTED.

Running Both Boards from

a Single Power Supply

If the serial-to-JTAG interface board is being used, a

single power supply can be used to power both boards

as follows.

• Connect a 5V ±5% regulated DC wall supply to the

J2 power plug of the serial-to-JTAG interface board.

• Connect the JH3 jumper on the serial-to-JTAG inter-

face board.

Note: Do not connect a power supply to the test

points on the MAXQ3120 EV kit when powering the

boards in this manner.

Running the MAXQ3120 EV Kit Board

from a Single Power Supply

If the MAXQ3120 has already been programmed using

the JTAG interface, it is possible to disconnect the seri-

al-to-JTAG board and power-up the MAXQ3120 EV kit

board on its own. This simply executes the previously

loaded firmware, with no possibility of in-application

load or debugging.

• Connect a 3.3V regulated bench supply to test points

VCC and GND on the MAXQ3120 EV kit board.

Internal Power Rail

If the MAXQ3120 EV kit is powered from the serial-to-

JTAG board, it generates a 3.3V internal power rail from

the 5V DC input power supply. This supply can be

used to provide up to 100mA to circuitry on the proto-

typing area.

Using the LCD

The LCD included on the MAXQ3120 EV kit is a static

(nonmultiplexed) 3V display with 3.5 digits of 7 seg-

ments each (Figure 4).

When the LCD controller is configured to static mode,

the display’s segments are memory mapped as noted

in Table 1. (Refer to Table 29 in the MAXQ312x

Supplement for more details.)

DP2

DP3

Figure 4. LCD Configuration

Table 1. LCD Memory Map (Static)

LCD0

LCD1

LCD2

LCD3

BIT 7

COL

BIT 6

DP2

DP3

BIT 5

BIT 4

BIT 3

BIT 2

4 _____________________________________________________________________

BIT 1

BIT 0

Share Link: