Sierra Wireless AirPrime AR7582, Руководство по интеграции оборудования

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41110461 Rev 0.1 January 16, 2017 20
2. Audio Specification
2.1. Digital Audio
The AirPrime AR758x Series provides two 4-wire digital audio interfaces. Each interface can be
configured as either a PCM or an I2S interface.
Table 21. Digital Audio Interface Pads
1
Pad Mode Name Direction
2
Function If Unused
DA3
PCM PCM_CLK
Output
PCM Clock
Leave Open
I
2
S I2S_SCLK I
2
S Bit Clock
DB3
PCM PCM_FS
Output
PCM Frame Sync
Leave Open
I
2
S I2S_WS I
2
S Word Select
DC2
PCM PCM_DOUT
Output
PCM Data Out
Leave Open
I
2
S I2S_DOUT I
2
S Data Out
DD2
PCM PCM_DIN
Input
PCM Data In
Leave Open
I
2
S I2S_DIN I
2
S Data In
DD3
PCM2 PCM_CLK
Output
PCM Clock
Leave Open
I
2
S2 I2S_SCLK I
2
S Bit Clock
DD4
PCM2 PCM_FS
Output
PCM Frame Sync
Leave Open
I
2
S2 I2S_WS I
2
S Word Select
DE2
PCM2 PCM_DOUT
Output
PCM Data Out
Leave Open
I
2
S2 I2S_DOUT I
2
S Data Out
DC4
PCM2 PCM_DIN
Input
PCM Data In
Leave Open
I
2
S2 I2S_DIN I
2
S Data In
1
PCM2/I2S2 is multiplexed with SPI2/UART3 and is not available if either SPI2/UART3 is configured
2
Direction when defined in Master mode.