Information

Figure 46-1. I

S/SAI block diagram

46.1.3 Modes of operation

The module operates in these MCU power modes: Run mode, stop modes, low-leakage

modes, and Debug mode.

46.1.3.1 Run mode

In Run mode, the SAI transmitter and receiver operate normally.

46.1.3.2 Stop modes

In Stop mode, the SAI transmitter and/or receiver can continue operating provided the

appropriate Stop Enable bit is set (TCSR[STOPE] and/or RCSR[STOPE], respectively),

and provided the transmitter and/or receiver is/are using an externally generated bit clock

or an Audio Master Clock that remains operating in Stop mode. The SAI transmitter and/

or receiver can generate an asynchronous interrupt to wake the CPU from Stop mode.

Introduction

K20 Sub-Family Reference Manual, Rev. 2, Feb 2012

1146 Freescale Semiconductor, Inc.