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LM49352 Scheda tecnica(PDF) 94 Page - Texas Instruments

Il numero della parte LM49352
Spiegazioni elettronici  Boomer Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers, Earpiece Driver, and Audio DSP
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LM49352
SNAS467E – MARCH 2009 – REVISED MARCH 2013
www.ti.com
GPIO Registers
Table 82. GPIO1 (0xE0h)
Bits
Field
Description
5:0
GPIO_MODE
This sets the mode of the GPIO Pin.
GPIO_MODE
GPIO STATUS
000000
GPIO Mode is disabled .PORT2_SDO is controlled by the Port2 serial
interface configuration. In all the other modes PORT2_SDO is configured
as the GPIO pin.
000001
GPIO_RX (in)
000010
CHIP ENABLE (in)
000011
CHIP ENABLE (in)
000100
ADC MUTE (in)
000101
ADC MUTE (in)
000110
HP SENSE (in)
000111
HP SENSE (in)
001000
SPARE (in)
001001
SPARE (in)
001010
GPIO TX (out)
001011
CHIP ACTIVE (out)
001100
CHIP ACTIVE (out)
001101
HP ENABLE (out)
001110
HP ENABLE (out)
001111
LS ENABLE (out)
010000
LS ENABLE (out)
010001
EP ENABLE (out)
010010
EP ENABLE (out)
010011
ADC CLIPPED (out)
010100
ADC CLIPPED (out)
010101
DAC CLIPPED (out)
010110
DAC CLIPPED (out)
010111
SOMETHING CLIPPED (out)
011000
SOMETHING CLIPPED (out)
011001
ADC NG ACTIVE (out)
011010
ADC NG ACTIVE (out)
011011
DAC NG ACTIVE (out)
011100
DAC NG ACTIVE (out)
011101
THERMAL (out)
011110
THERMAL (out)
011111
LS SHORT CCT (out)
5:0
GPIO_MODE
100000
LS SHORT CCT (out)
ANALOG ERROR
100001
Thermal or LS CCT condition (out)
100010
ANALOG ERROR (out)
ERROR (out)
100011
Thermal or LS CCT or Clipping
100100
ERROR (out)
100101 – 111111
RESERVED
6
GPIO_TX
Whenever GPIO_MODE is set to '001010', the GPIO pin will output a logic level based on this bit
setting. Setting this bit high will result in a logic high GPIO output.
94
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