Flow control for a Serial Peripheral Interface bus

A system for flow control within a Serial Peripheral Interface comprising:

• a slave device to receive a flow control command;
• a Serial Peripheral Interface bus to transmit the flow control command;
• and
• a master device to:
• generate the flow control command;
• send the flow control command from the master device to the slave device with a Serial Peripheral Interface;
• send a memory address from the master device to the slave device;
• wait to receive a first ready indicator;
• communicate with the slave device in response to the first ready indicator, the master device to transmit or receive a first of byte of data;
• and
• transmit or receive, via the master device, additional bytes of data in response to detecting a second ready indicator.

A system for flow control within a Serial Peripheral Interface comprising:

• a master device to send a flow control command;
• a Serial Peripheral Interface bus to transmit the flow control command;
• and
• a slave device to:
• detect the flow control command;
• detect a memory address;
• send a first ready indicator to the master device;
• communicate with the master device, the slave device to transmit or receive a first of byte of data;
• and
• transmit or receive, via the slave device, additional bytes of data in response to sending a second ready indicator.