Table 2-9. User Pushbuttons and LEDs (continued)
Push Button
Primary Function
Alternate Function
[SW11_CP]
User Define (WKUP_GPIO0_7)
Wake from software-initiated power-down
(OFF)
[SW10_CP]
User Define (GPIO0_0)
External Interrupt (EXTINTn)
[SW1_SOM]
User Define (WKUP_GPIO0_70)
Wake from low power mode (MCU IO_RET)
[SW12_CP]
PMIC_GPIO4
Wake from low power mode (any LP_STBY)
LED
Primary Function
Alternate Function
[LD9_CP]
User Define (IO_EXP 0x22, bit P26)
None
[LD8_CP]
User Define (IO_EXP 0x22, bit P27)
None
Note
The user-defined pushbutton inputs and LED outputs are connected to processor pins. The pins can
be accessed via GPIO functions of the pin. The specific pin/GPIO used is identified in the table.
2.4 Standard Interfaces
The EVM provides industry standard interfaces/connectors to connect a wide variety of peripherals. As these
interfaces are standard, specific pin information is not provided in this document.
2.4.1 Uart-Over-USB [J43_CP] [J44_CP] with LED for Status [LD10_CP] [LD11_CP]
Five UART ports of the processor are interfaced with the UART-over-USB transceiver(s). When the EVM’sUSB
micro-B connectors [J43] and/or [J44] are connected to a Host-PC using supplied USB cable (Type-A to Micro-
B), the computer can establish Virtual Com Port(s) to be used with any terminal application. Virtual Com Port
drivers for the transceiver(s) can be obtained from:
https://www.ftdichip.com/Products/ICs/FT2232H.html
https://www.ftdichip.com/Products/ICs/FT4232H.html
Once installed, the Host-PC will create the Virtual Com Ports (two ports for FT2232, 4 ports for FT4232).
Depending on the other Host-PC resources available, the Com Ports may not be located at COM1-2 and/or
COM1-4. However, they will remain in the same numerical order for each transceiver.
The circuit(s) are powered from USB bus power and therefore the COM connection will not be lost when the
EVM power is removed. LED(s) [LD11] [LD10] are used to indicate an active COM connection with Host-PC.
Table 2-10. UART to COM Port Mapping [J43] with Status [LD10]
UART Port
Host-PC COM Port
MCU_UART0
COM 1
WKUP_UART0
COM 2
Table 2-11. UART to COM Port Mapping [J44] with Status [LD11]
UART Port
Host-PC COM Port
MAIN_UART8
COM 1
MAIN_UART5
COM 2
MAIN_UART2
COM 3
NA
COM 4
The EEPROM of FTDI bridges are programmed with the CPB serial number, users to identify the connected
COM port with board serial number when one or more boards connected to the computer.
Note
The maximum length for the IO cables should not exceed three meters.
User Interfaces
12
Jacinto7 TDA4VE-Q1/TDA4VL-Q1/TDA4AL-Q1 Evaluation Module (EVM)
Copyright © 2022 Texas Instruments Incorporated
