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AS3525 Datasheet(PDF) 159 Page - ams AG |
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AS3525 Datasheet(HTML) 159 Page - ams AG |
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159 / 194 page  AS3525-A/-B C22O22 Data Sheet, Confidential © 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved. www.austriamicrosystems.com Revision 1.13 159 - 194 Table 146 Second Interrupt Register Name Base Default IRQ_ENRD_1 I2C audio master 0x00 Second Interrupt Register Offset: 0x26 Please be aware that writing to this register will enable/disable the corresponding interrupts, while with reading you get the actual interrupt status and will clear the register at the same time. It is not possible to read back the interrupt enable/disable settings. This register is reset at a DVDD-POR. Bit Bit Name Default Access Bit Description 0 W Supervisor junction over-temperature interrupt setting 0: disable 1: enable 7 JTEMP_high (level) x R Supervisor junction over-temperature interrupt reading 0: chip temperature below threshold 1: chip temperature has reached the threshold The threshold can be set in the SUPERVISOR register (0x24) 0 W Speaker over-current interrupt setting 0: disable 1: enable The interrupt must not be enabled if the speaker block is disabled 6 LSP_overcurr (level) x R Speaker over-current interrupt reading 0: no over-current detected 1: speaker over-current detected, speaker amplifier was shut down. The shut-down time can be set in LSP_OUT_R register (0x04) 0 W Headphone over-current interrupt setting 0: disable 1: enable The interrupt must not be enabled if the headphone block is disabled 5 HPH_overcurr (level) x R Headphone over-current interrupt reading 0: no over-current detected 1: headphone over-current detected, headphone amplifier was shut down. The shut-down time can be set in HPH_OUT_R register (0x02) 4 I2S_status x R 0: no LRCK on I2S interface detected 1: LRCK on I2S interface present 0 W I2S input status change interrupt setting 0: disable 1: enable 3 I2S_changed (status change) x R I2S input status change interrupt reading 0: I2S input status not changed 1: I2S input status changed, check I2S_status 0 W Microphone 2 connect detection interrupt setting 0: disable 1: enable 2 MIC2_connect (level) x R Microphone 2 connect detection interrupt reading 0: no microphone connected to MIC2 input 1: microphone connected at MIC2 input. IRQ will be released after enabling the microphone stage. Detecting a microphone during operation has to be done by measuring the supply current. |
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