GS1582-IBE3 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
Manufacturer
GS1582-IBE3
Semtech Corporation
GS1582-IBE3 Datasheet PDF : 115 Pages
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4.7.19 Audio Crosspoint
The audio crosspoint allows any single input channel to be embedded as one or more of
the 8 embedded audio channels. The default setting is for one-to-one mapping, where
Ain_1/2 is embedded as Ch1 and Ch2, Ain_3/4 is embedded as Ch3 and Ch4, and so on.
The same audio channel cannot be used in both group 1 and 2 at the same time. The
GS1582 will assert the XPOINT_ERROR host interface bit if any audio channel is
programmed to be included in both groups.
The source channel is set via the host interface. Table 4-18 lists the 3-bit address for
audio channel mapping.
Table 4-18: Audio Channel Mapping Codes
Audio Input Channel
Group 1 channel 1
Group 1 channel 2
Group 1 channel 3
Group 1 channel 4
Group 2 channel 1
Group 2 channel 2
Group 2 channel 3
Group 2 channel 4
3-bit Host Interface Source Address
000b
001b
010b
011b
100b
101b
110b
111b
Table 4-19: Source Input Address Registers
Name
GP1_CH1_SRC[2:0]
GP1_CH2_SRC[2:0]
GP1_CH3_SRC[2:0]
GP1_CH4_SRC[2:0]
GP2_CH1_SRC[2:0]
GP2_CH2_SRC[2:0]
GP2_CH3_SRC[2:0]
GP2_CH4_SRC[2:0]
Description
Group 1 channel 1 source selector
Group 1 channel 2 source selector
Group 1 channel 3 source selector
Group 1 channel 4 source selector
Group 2 channel 1 source selector
Group 2 channel 2 source selector
Group 2 channel 3 source selector
Group 2 channel 4 source selector
Default
000b
001b
010b
011b
100b
101b
110b
111b
NOTE: Audio channels can be paired only when both channels are derived from the
same word clock and are synchronous.
GS1582 Multi-Rate Serializer with Cable Driver, Audio
Multiplexer and ClockCleanerTM
Data Sheet
40117 - 4
December 2011
58 of 115
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