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PCM5310PAPR Datasheet(PDF) 32 Page - Texas Instruments |
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PCM5310PAPR Datasheet(HTML) 32 Page - Texas Instruments |
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32 / 103 page  GPIO CONTROL GPIO Control HP Insertion HP Protection Zero Flag Register Out Logic In/Out Connect to Port GPIO1 GPIO2 GPIO3 GPIO2 GPIO3 GPIO1 PCM5310 SLES244 – FEBRUARY 2009 ............................................................................................................................................................................................ www.ti.com The PCM5310 has three general-purpose input/output (GPIO) pins (pins 55, 56, and 57) that can be assigned to various functions and internal status reads shown in Table 16, Table 17, Table 18, and Figure 39. Table 16. GPIO Control Registers REGISTER DESCRIPTION REGISTER NUMBER REGISTER BITS GPIO1 select, bypass PORT-4 09 GBP4, GSL1[4:0] GPIO2 select, bypass PORT-5 10 GBP5, GSL2[4:0] GPIO3 select 11 GSL3[4:0] Table 17. Register Data Read Through the GPIO Pins REGISTER DESCRIPTION REGISTER NUMBER REGISTER BITS External device control 08 GPO3, GPO2, GPO1 Headphone short-circuit protection status 16 SSHR, SSHL Headphone insertion detect status 35 RHPI Mute status for headphone 35 RHMUR, RHMUL System clock fS detect for DAC12, DAC34 35, 36 RD12FS[2:0], RD34[2:0] System clock fS detect for ADC12, ADC34 37, 38 RA12FS[2:0], RA34[2:0] Digital mute status for DAC12 and DAC34 36 RDM4, RDM3, RDM2, RDM1 Digital mute status for ADC12 and ADC34 37 RAM4, RAM3, RAM2, RAM1 Zero crossing timeout for DAC12 and DAC34 38 RDZ4, RDZ3, RDZ2, RDZ1 Zero crossing timeout for ADC12 and ADC34 39 RAZ4, RAZ3, RAZ2, RAZ1 Zero crossing timeout for headphone 39 RHZR, RHZL Table 18. Other GPIO Pin Functions GPIO PIN FUNCTION DESCRIPTION Zero flag for digital input Read the status for each DAC channel or all DAC channels Logic OR, AND, NOR, NAND, buffer, inverter Audio data Bypass audio data to PORT-4 and PORT-5 from GPIO pins Figure 39. GPIO Control 32 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): PCM5310 |
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