Technical data

MCIMX31C/MCIMX31LC Technical Data, Rev. 4.3

30 Freescale Semiconductor

Electrical Characteristics

4.3.6 AUDMUX Electrical Specifications

The AUDMUX provides a programmable interconnect logic for voice, audio and data routing between

internal serial interfaces (SSI) and external serial interfaces (audio and voice codecs). The AC timing of

AUDMUX external pins is hence governed by the SSI module. Please refer to their respective electrical

specifications.

4.3.7 CSPI Electrical Specifications

This section describes the electrical information of the CSPI.

4.3.7.1 CSPI Timing

Figure 20 and Figure 21 depict the master mode and slave mode timings of CSPI, and Table 27 lists the

timing parameters.

Figure 20. CSPI Master Mode Timing Diagram

Figure 21. CSPI Slave Mode Timing Diagram

CS1

CS7 CS8

CS2

CS4

CS6

CS5

CS9 CS10

SCLK

SSx

MOSI

MISO

SPI_RDY

CS11

CS3

CS1

CS7 CS8

CS2

CS4

CS6

CS5

CS9 CS10

SCLK

SSx

MISO

MOSI

CS3