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Hardware Specifications
18
SPRUIS6 – September 2019
Copyright © 2019, Texas Instruments Incorporated
MMWCAS-DSP-EVM
2.6.2
Switches
The MMWCAS-DSP-EVM has a 1×6 DIP(S4) switch for boot selection (as shown in
). Out of the
box, the EVM has S4.5 and S4.6 "ON" so that it boots from the SD card.
Table 5. User Configurable Supported Boot Modes
Boot Mode
S4 Configuration[5:0]
USB boot
010000
UART boot
010011
eMMC boot
111000
eMMC boot partition
111011
SD boot
110000
(Default)
2.6.3
Push Buttons
The MMWCAS-DSP-EVM supports three push buttons for POR reset, SoC Reset, and an ON/OFF button.
By default, the ON/OFF button is disabled. Refer to SCH for resistor options for ON/OFF functionality.
Table 6. Push Button Functionality Information
Reference
Usage
Description
S1
ON/OFF
Turns the EVM on and off with each push. By default, the switch is disabled
so that the EVM powers up when power is applied. Refer to the SCH for
resistor options in order to toggle ON/OFF functionality.
S2
PORz Reset
Generates a PORz reset upon pushing.
S3
SoC Reset
Generates a reset on the SoC.
2.6.4
LEDs
The MMWCAS-DSP-EVM supports LEDs for user indications, as listed in
Table 7. User and Status LED Reference Designator and Description
Reference
Usage
Description
Color
D3
Status
Ethernet Activity
Green
D4
Status
TPS74801 - Ethernet 1.0V Power Good
Green
D5
Status
FTDI Power Enable – 5V
Green
D6
Status
FTDI RX
Green
D7
Status
FTDI TX
Green
D9
User GPIO
User programmable
Green
D10
Status
Ethernet 2.5V Power Good
Green
D11
Status
TDA2 Reset out
Green
D12
Status
12V Input
Green
D13
User GPIO
User programmable
Green
D14
User GPIO
User programmable
Green
D15
User GPIO
User programmable
Green
D16
Status
TDA2 PORz – Power On Reset
Green
D17
Status
FPGA1 LED
Green
D18
User GPIO
User programmable
Green
D19
User GPIO
User programmable
Green
D20
Status
TDA2 Reset – Reset based on status of VDD_MPU
Green
D21
Status
TDA2 PMIC Reset out
Green
D22
Status
FPGA2 LED
Green
D23
Status
TPS43351 - 3.3V and 5V Power Good
Green