SPRUJ68 January 2023 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The General Purpose IOs (GPIO) of the AM68 SoC are segmented into two major groups, WKUP and MAIN. For this design, the is no functional difference between the GPIOs. Table 3-3 describes the processor's GPIO mapping to the EVM peripherals and provides the default settings.
Processor Pin Name | GPIO | Function |
Dir/ Level |
Remarks |
---|---|---|---|---|
WKUP_GPIO0_10 |
WKUP_GPIO0_10 |
ADC external trigger from TI safety header(Default connection)/CLKREQ# |
Input |
External ADC Trigger Signal |
WKUP_GPIO0_11 |
WKUP_GPIO0_11 |
40pin Expansion HeaderSignal (REFCLK0/GPIO) | Output | Expansion Board Specific (Pin 10) |
WKUP_GPIO0_15 |
WKUP_GPIO0_15 |
MCU SPI1 signal | Output | SPI chip select Signal for 40 pin Header |
MCU_OSPI0_CSn1 |
WKUP_GPIO0_28 |
Enable for eFUSE Programming Supply | Output |
‘0’– Disabled(Default) ‘1’– Enabled |
MCU_OSPI0_CSN2 |
WKUP_GPIO0_29 |
User LED [LD2] | Output |
‘0' – LED [LD2] is OFF (default) '1' – LED [LD2] is ON |
MCU_OSPI1_CLK |
WKUP_GPIO0_31 |
Ethernet PHY Interrupt | Input |
‘0’ – Active Interrupt Request ‘1’ – No Interrupt Request (default) |
MCU_OSPI1_LBCLKO |
WKUP_GPIO0_32 |
GPIO Signals for CSI expansion connector | Bi-Dir | ExpansionBoard Specific (Pin 6) |
MCU_OSPI1_DQS |
WKUP_GPIO0_33 |
SW2 Pushbutton | Output |
‘0’ – SW2 is Pressed ‘1’ – SW2 is NOT Pressed (default) |
MCU_OSPI1_D0 |
WKUP_GPIO0_34 |
SW3 Pushbutton |
Input |
‘0’ – SW3 is Pressed ‘1’ – SW3 is NOT Pressed (default) |
MCU_OSPI1_D1 |
WKUP_GPIO0_35 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | ExpansionBoard Specific (Pin 22) |
MCU_OSPI1_D2 |
WKUP_GPIO0_36 |
GPIO Signals for CSI expansion connector | Bi-Dir | ExpansionBoard Specific (Pin 8) |
MCU_OSPI1_D3 |
WKUP_GPIO0_37 |
GPIO Signals for CSI expansion connector | Bi-Dir | ExpansionBoard Specific (Pin 18) |
MCU_OSPI1_CSN0 |
WKUP_GPIO0_38 |
CSI Expansion Signal (GPIO) | Bi-Dir | CSI2 Expansion Board Specific (Pin 20) |
MCU_OSPI1_CSN1 |
WKUP_GPIO0_39 |
Power Management IC Interrupt | Input |
‘0’– Active Interrupt Request ‘1’– No Interrupt Request (default) |
WKUP_GPIO0_49 |
WKUP_GPIO0_49 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 15) |
MCU_SPI0_CLK |
WKUP_GPIO0_54 |
MUX select | Output |
‘0’ – A to B1 port selected ‘1’ – A to B2 port selected |
WKUP_GPIO0_56 |
WKUP_GPIO0_56 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 29) |
WKUP_GPIO0_57 |
WKUP_GPIO0_57 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 31) |
WKUP_GPIO0_66 |
WKUP_GPIO0_66 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 7) |
WKUP_GPIO0_67 |
WKUP_GPIO0_67 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 22) |
MCU_SPI0_D1 |
WKUP_GPIO0_69 |
System Power Down | Output |
'0' - Normal Operation (default) '1' - System Power Down/Off |
MCU_SPI0_CS0 |
WKUP_GPIO0_70 |
Camera #1 Flex Signal (GPIO) |
Bi-Dir | Camera Specific (Pin 5a) |
MCU_ADC1_AIN0 | WKUP_GPIO0_79 | Test Automation Interrupt #1 | Input |
‘0’ - To Be Defined by User ‘1’ - To Be Defined by User (default) |
MCU_ADC1_AIN1 | WKUP_GPIO0_80 | Test Automation Interrupt #2 | Input |
‘0’ - To Be Defined by User ‘1’ - To Be Defined by User (default) |
PMIC_POWER_EN1 | WKUP_GPIO0_88 |
Camera #0 Flex Signal (GPIO) |
Bi-Dir | Camera Specific (Pin 5a) |
EXTINTN | GPIO0_0 | HDMI Monitor Detect | Input |
Active High Signal ‘0’ – No Monitor Detected (default) ‘1’ – Monitor Detected |
MCAN13_TX | GPIO0_3 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 16) |
MCAN1_TX | GPIO0_27 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 37) |
MCASP0_AXR8 | GPIO0_36 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 13) |
MCASP0_AXR13 | GPIO0_41 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 36) |
MCASP0_AXR14 | GPIO0_42 |
40pin Expansion Header Signal (GPIO) |
Bi-Dir | Expansion Board Specific (Pin 11) |
ECAP0_IN_APWM_OUT | GPIO0_49 |
SD Card IO Voltage Selection |
Output |
‘0’ – SD Card IO Voltage is 1.8 V ‘1’ – SD Card IO Voltage is 3.3 V (default) |
TIMER_IO0 | GPIO0_58 | SD card detect signal | Input |
Active Low Signal ‘0’- SD Card Detected ‘1’- SD Card Not Detected |
TIMER_IO1 | GPIO0_59 | USB VBUS Drive signal | Output |
Active High Signal ‘0’- VBUS Disabled ‘1’- VBUS Enabled |