Analog Devices ADZS-21569-EZKIT, Руководство пользователя

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Table 3-4: Output Signals of Microchip GPIO Expander (U48 Port A)
Bit Signal Name Description FET Processor Signal
(if applicable) Connected Default
0 EEPROM_EN
SPI EEPROM CS U25 PA_09/SPI0_SEL1b/
UART0_CTSb/OSPI_D7/
SMC0_D09/SPI0_SSb U41 High
1 UART0_FLOW_
EN
UART0 Flow Control U32 PA_08/SPI0_MOSI/
UART0_RTSb/OSPI_D6/
SMC0_D08/TM0_ACLK2 U31 Low
2 UART0_EN
Enables UART0 U32 PA_06/SPI0_CLK/
UART0_TXb/OSPI_D4/
SMC0_D06/TM0_ACLK1 U31 Low
3 ADAU_RESET
Reset ADAU ICs U6, U7, U8 None U40, U43,
U44 High
4 OCTAL_SPI_
CS_EN
Connects Octal CS to SPI port U16 PA_05/SPI2_SEL1b/
OSPI_SEL1b/SMC0_D05/
SPI2_SSb U47 High
5 OCTAL_SPI_
CONNECT
Connects Octal signals to SPI
port U17 PA_00/SPI2_MISO/
OSPI_MISO/SMC0_D00 U47 High
6 THUMBWHEEL_
OE
Enables Rotary Switch U48 Counter signals
U57
High
7 NOT USED
Table 3-5: Output Signals of Microchip GPIO Expander (U48 Port B)
Bit Signal Name Description FET Processor Signal
(if applicable) Connected Default
0 ADAU1962_EN
Enables ADAU1962 U7 DAI0_PIN02, DAI0_PIN04,
DAI0_PIN0, DAI0_PIN05 and
DAI0_PIN10 U40 High
1 ADAU1979_EN
Enables ADAU1979 U7 DAI0_PIN20, DAI0_PIN12,
DAI0_PIN06 and DAI0_PIN07 U43 High
2 AUDIO_JACK_
SEL
Selects between connector being
configured for input or output U40 None J3 High
3 NOT USED
4 SPI2FLASH_
CS_EN
SPI2 FLASH CS U26 PB_15/SPI2_SEL1b U30 Low
5 SPI2D2_D3_
EN
Enables Quad mode for SPI2
Flash U27 and
U28 PB_12/SPI2_D2 and PB_13/
SPI2_D3 U30 Low
6 SPDIF_
OPTICAL
Enables S/PDIF optical connec-
tors U10 and
U13 DAI0_PIN09, DAI0_PIN10 J1 and J2 Low
Software-Controlled Switches (SoftConfig)
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