LinkIt 2523 HDK v11 User's Guide
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4.2.2.
Power source for digital I/O
LinkIt 2523 HDK supplies power to devices with different voltage support. GPIO voltage level customization is
shown in Table 2. Jumper and resistor positions are specified in Figure 10 and Figure 11.
Table 2. GPIO voltage level customization with jumper and pin (illustrated) settings
Power rail
DVDD_VIO_A voltage
Set the jumper J1106 pins with
0Ω resistor
to assign the power rail
DVDD_VIO_A
to VIO28, as shown below.
Set the jumper J1106 pins
with 0Ω resistor
to assign the power rail
DVDD_VIO_A
to VIO18, as shown below.
Power rail
DVDD_VIO_C voltage
Set the jumper J1108 pins
with 0Ω resistor
to assign the power rail
DVDD_VIO_C
to VIO28, as shown below.
Set the jumper J1108 pins
with 0Ω resistor
to assign the power rail
DVDD_VIO_C
to VIO18, as shown below.
Power rail
DVDD_GPO voltage
Set the jumper J1109 pins
with 0Ω resistor
to assign the power rail
DVDD_GPO
to
VIO28, as shown below.
Set the jumper J1109 pins
with 0Ω resistor
to assign the power rail
DVDD_GPO
to
VIO18, as shown below.
Power rail
DVDD18_VIO18
voltage selection
Set the jumper J1110 pins
with 0Ω resistor
to assign the power
rail
DVDD18_VIO18
to VIO28, as shown below.
Set the jumper J1110 pins
with 0Ω resistor
to assign the power
rail
DVDD18_VIO18
to VIO18, as shown below.
Power rail
Set the jumper J1111 pins
with 0Ω resistor
to assign the power rail
DVDD_VMC
to
VIO28, as shown below.
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
