MGC3130 datasheet(21/40 Pages) MICROCHIP

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 2012 Microchip Technology Inc.

Advance Information

DS41667A-page 21

MGC3130

5.0

APPLICATION

ARCHITECTURE(1)

MGC3130 supports two different implementations:

single-zone design and dual-zone design.

5.1

Single-Zone Design

The standard MGC3130 implementation is a single-

zone design. This configuration is based on one

MGC3130 connected to an application host. The

interface can be either configured as I2C master, I2C

slave, SPI master or SPI slave, depending on the

overall system design (see Figure 5-1).

Data reporting and flow-control scenarios are

described below for either I2C or SPI configurations:

• If MGC3130 is I2C or SPI slave and the host is I2C

or SPI master:

- Host interface is I2C0

- EIO0 is toggled indicating that new data is

available

• If MGC3130 is I2C or SPI master and the host is

I2C or SPI slave:

- Data is sent to the host automatically when

ready

- Data is sent on an EIO toggle of the host

system

FIGURE 5-1:

SINGLE-ZONE DESIGN

5.2

Dual-Zone Design

In addition to a single-zone design, the MGC3130’s 4-pin

digital interface also allows dual-zone designs by adding

a second MGC3130, as shown in Figure 5-2. A dual-zone

design allows detection of users hand motion in two

independent zones (e.g., one for each hand) to expand

user input options. In such a configuration, one MGC3130

acts as the dual-zone master device and the second acts

as dual-zone slave device. The communication data flow

is as follows: Position tracking data and recognized

gestures from the dual-zone slave is transferred to the

host via the MGC3130 dual-zone master.

FIGURE 5-2:

DUAL-ZONE DESIGN

Note 1: Currently, only single-zone I2C™ Slave

mode is supported. Other modes are

planned for future releases of GestIC®

Library. Please contact your Microchip

representative for further details.

MGC3130

Single Zone

2CTM0

2CTM

GPIO

EIO0

Host

Note 1: Currently, only single-zone I2C™ Slave

mode is supported. Other modes are

planned for future releases of GestIC®

Library. Please contact your Microchip

representative for further details.

MGC3130

Dual Zone

Master

2CTM0

I2CTM

GPIO

EIO0

Host

EIO2

2CTM1

MGC3130

Dual Zone

Slave

2CTM0

EIO0

EIO3

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