User Guide
HARDWARE DESCRIPTION
Table 10. Connector and Jack Description (Continued)
Reference Designator
Functional Name
JP10
RESET option
JP11
XTALI/MCLKIN option
JP12
QSPIM_CS_MP12 pin
jumper
JP13
QSPIM_CLK_MP11 pin
jumper
JP14
QSPIM_SDIO0_MP13 pin
jumper
JP15
QSPIM_SDIO1_MP14 pin
jumper
JP16
QSPIM_SDIO2_MP15 pin
jumper
JP17 to JP20
Communication interface
JP21
QSPIM_SDIO3_MP16 pin
jumper
JP22
REG_EN jumper
JP23
IRQ jumper
JP24
SELFBOOT jumper
JP25
ROMBOOT jumper
JP29/JP30
DMIC CLK option
JP31 to JP33
DMIC level shift jumper
JP34 to JP37
PDM level shift jumper
JP38
1.8V_LDO/EXT_AVDD
JP39
1.8V_LDO/EXT_IOVDD
JP40
0.9V_LDO/EXT_DVDD
JP41
1.3V_LDO/EXT_HPVDDL
JP42
IOVDD jumper
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Description
The FT4232HQ-REEL sends the reset signal to the ADAU1861BCSZ and the ADAU1966A. Note that the default is
floating if the jumper is connected. Use S2 to reset the ADAU1861BCSZ and the ADAU1966A.
Used to select the signal from JP9 or the on-board crystal as the XTALI/MCLKIN.
Used to connect the CS_N pin on the on-board flash to the MP12 pin on the ADAU1861.
Used to connect the CLK pin on the on-board flash to the MP11 pin on the ADAU1861.
Used to connect the DI/IO0 pin on the on-board flash to the MP13 pin on the ADAU1861.
Used to connect the DO/IO1 pin on the on-board flash to the MP14 pin on the ADAU1861.
Used to connect the WP_N/IO2 pin on the on-board flash to the MP15 pin on the ADAU1861.
2
Used with the I
C or SPI for the ADAD1861 and flash chip (W25Q128JWEIQ) communication.
Used to connect the HOLD_N/RESET_N/IO3 pin on the on-board flash to the MP15 pin on the ADAU1861.
Used to select AVDD or GND to REG_EN.
Sends an IRQ signal to the ADAU1861 chip when S3 is pushed down to GND.
Used to select IOVDD or GND to SELFBOOT.
Used to select IOVDD or GND to ROM_BOOT_MODE.
Used to select DMIC_CLK_MP0 or TCK_MP22 to CLK for the DMIC array.
DMIC level-shift jumper. Note that the default is floating.
PDM level-shift jumper. Note that the default is floating.
Used to select between the external source or the 1.8 V on-board LDO regulator for the AVDD.
Used to select between the external source or the 1.8 V on-board LDO regulator for the IOVDD.
Used to select between the external source or the 0.9 V on-board LDO regulator for the DVDD.
Used to select between the external source or the 1.3 V on-board LDO regulator for the HPVDDL.
Used to connect between JP39 and ADAU1861 IOVDD.
EVAL-ADAU1861
Rev. 0 | 13 of 24
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