US 2019/0171608 A1 · SPI devices with multi-master capabilities

Abstract

An electronic system includes a slave device, multiple master devices and logic circuitry. The slave device is configured to communicate with a single master device in accordance with a single-master communication protocol. The multiple master devices are respectively configured to communicate with the slave device in accordance with the single-master communication protocol. The logic circuitry, which is disposed respectively in the multiple master devices, is configured to exchange control signals indicative of whether the slave device is available for access, so as to prevent simultaneous access attempts to the slave device by more than one of the master devices.

Claims10

Dependent claims

An electronic system, comprising:

a slave device, configured to communicate with a single master device in accordance with a single-master communication protocol;
multiple master devices respectively configured to communicate with the slave device in accordance with the single-master communication protocol;
and
logic circuitry disposed respectively in the multiple master devices, the logic circuitry in each master device comprising:
an input interface, configured to receive signaling indicating that another master device is currently accessing the slave device;
and
an output interface connected to the input interface of each of the other master devices, the output interface configured to send to the other master devices the signaling indicating that the master device is currently accessing the slave device.

4 more elements

Dependencies are inferred from the claim text.

SPI devices with multi-master capabilities

Life of this patent

SPI devices with multi-master capabilities

Life of this patent

Abstract

Claims10