ST60A3H1 datasheet(5/72 Pages) STMICROELECTRONICS

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Functional description

This section details the various functional blocks of the ST60A3H1. Refer also to Figure 1. ST60A3H1 block

diagram.

2.1

Overview

The ST60A3H1 is a fully integrated transceiver, with a dual-linear-polarization integrated antenna, including full

transmit and receive paths, as well as digital control and power management necessary to operate the IC

seamlessly into a low footprint application. The I²C configuration bus and hardware control pins enable to

configure and manage the transitions of the ST60A3H1, which does not require any external RF component.

Once its RF is enabled, the ST60A3H1 enters a discovery state during which it looks for a partner. When a

partner ST60A3H1 is detected, the RF link is established with optimized parameters, and the two devices enter

LOW_POWER state. In this state, the locally programmable ST60A3H1 device or Local ST60A3H1 is configured

by I²C. The partner ST60A3H1 device referred to as the Remote ST60A3H1 is configured either by I²C or over-

the-air by the Local ST60A3H1 through Remote register access (RRA). An I²C set of commands sent to the Local

device then sets the pair of ST60A3H1 devices into the desired tunneling mode (eUSB2, UART, GPIO or I²C) and

data can be transferred.

The ST60A3H1 acts as a wireless repeater that seamlessly interfaces for eUSB2, UART, GPIO, and I²C protocols.

The mastership of any protocol is not correlated with the mastership (Local / Remote) of the RF link. See Figure 2

and Figure 3 below for more details.

Figure 2. ST60A3H1 pair with Local device on Host/Source/Master side

Host/

Source/

Master

ST60A3Hx

Local

ST60A3Hx

Remote

Device/

Sink/

Slave

I2C

control

RRA

Figure 3. ST60A3H1 pair with Remote device on Host/Source/Master side

Host/

Source/

Master

ST60A3Hx

Remote

ST60A3Hx

Local

Device/

Sink/

Slave

I2C

control

RRA

ST60A3H1

Functional description

DS14598 - Rev 2

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