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EP7309-IR-C Datasheet(PDF) 7 Page - Cirrus Logic |
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EP7309-IR-C Datasheet(HTML) 7 Page - Cirrus Logic |
7 / 46 page DS507PP1 Copyright 2001 Cirrus Logic (All Rights Reserved) 7 EP7309 High-Performance, Low-Power System on Chip Internal Boot ROM The internal 128 byte Boot ROM facilitates download of saved code to the on-board SRAM/FLASH. Packaging The EP7309 is available in a 208-pin LQFP package, 256- ball PBGA package or a 204-ball TFBGA package. Pin Multiplexing The following table shows the pin multiplexing of the DAI, SSI2 and the CODEC. The selection between SSI2 and the CODEC is controlled by the state of the SERSEL bit in SYSCON2. The choice between the SSI2, CODEC, and the DAI is controlled by the DAISEL bit in SYSCON3 (see the EP7309 User’s Manual for more information). The following table shows the pins that have been multiplexed in the EP7309. Pin Mnemonic I/O DAI SSI2 CODEC SSICLK I/O SCLK SSICLK PCMCLK SSITXDA O SDOUT SSITXDA PCMOUT SSIRXDA I SDIN SSIRXDA PCMIN Table Q. DAI/SSI2/CODEC Pin Multiplexing SSITXFR I/O LRCK SSITXFR PCMSYNC SSIRXFR I MCLKIN SSIRXFR p/u BUZ O MCLKOUT Signal Block Signal Block RUN System Configuration CLKEN System Configuration nMEDCHG Interrupt Controller nBROM Boot ROM select PD[0] GPIO LEDFLSH LED Flasher PE[1:0] GPIO BOOTSEL[1:0] System Configuration PE[2] GPIO CLKSEL System Configuration Table R. Pin Multiplexing Pin Mnemonic I/O DAI SSI2 CODEC Table Q. DAI/SSI2/CODEC Pin Multiplexing |
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