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1772E–DRMSD–10-Apr-06

ATSAM9708

17. Audio Routing

Each PDSP can process eight digital audio inputs and generate eight digital audio outputs for

a total of 16 digital audio-in and 16 digital audio-out.

The eight outputs from DSP#2 can be individually routed on DSP#1 inputs.

Figure 17-1. Audio Routing

18. MIDI Routing

The d e fa ult co nfig ura t ion assig n s M I DI1 _ IN/M IDI1 _O UT t o PDSP#1 an d

MIDI2_IN/MIDI2_OUT to PDSP#2.

Alternatively, MIDI1_IN can be routed as the same MIDI input to both PDSPs. In this case, the

MIDI2_IN is available as a general-purpose input.

Also, if the MIDI2_OUT is not necessary, it can be defined as a general-purpose output.

19. General-purpose Input/Output Routing

MIDI2_IN, MIDI2_OUT, SD_IN[7, 6, 5, 3, 2, 1, 0] and SD_OUT[7:1] pins can be individually

routed as general-purpose inputs or outputs as identified in Table 19-1.

PDSP#1

PDSP#2

SD_IN[7:4]

SD_IN[3:0]

SD_OUT[3:0]

SD_OUT[7:4]

Table 19-1.

General-purpose Input/Output Routing

GPIO

Pin

GPIO_OUT[0] DSP#1

MIDI2_OUT

GPIO_OUT[1] DSP#1

SD_OUT[1]

GPIO_OUT[2] DSP#1

SD_OUT[2]

GPIO_OUT[3] DSP#1

SD_OUT[3]

GPIO_OUT[4] DSP#1

SD_IN[0]

GPIO_OUT[5] DSP#1

SD_IN[1]

GPIO_OUT[6] DSP#1

SD_IN[2]

GPIO_OUT[7] DSP#1

SD_IN[3]

GPIO_OUT[0] DSP#2

SD_OUT[4]

GPIO_OUT[1] DSP#2

SD_OUT[5]

GPIO_OUT[2] DSP#2

SD_OUT[6]

GPIO_OUT[3] DSP#2

SD_OUT[7]