µ E Z
G U I U s e r ’ s M a n u a l
P a g e
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22
9/13/2023
Copyright ©2023, Future Designs, Inc.
Revision 1.2
J5 & J6 - Expansion Connectors
The UEZGUI-4357-70WVN-BA includes two expansion connectors that provide a wide variety of capabilities for
user expansion, ranging from 10/100 Ethernet to USB Host, etc.
Please Note:
When using I/O signals on the µEZ
GUI Expansion Connectors (J5 & J6) to connect via the customers Expansion Board to external connectors or
signals,
it is the customer’s responsibility to provide adequate ESD protection and filtering to prevent damage
to any pins that are not directly protected on the µEZ GUI. Any damage caused by improper connectivity is not
covered under warranty.
The tables below provide the pinout and signal names available on these connectors:
J6 Signal Details
Pin
Pin Name
Pin Description
1
Ground (GND)
Power
2
GPIO5.4/I2C1_SCL/RXD3/CTIN0/
T3_MAT1
GPIO5.4
–
General Purpose I/O
I/O
I2C1_SCL
–
I2C Channel 1 Serial Clock
I/O
RXD3
–
UART Channel 3 Receive Data
I
CTIN0
–
SCT Input 0 of timer 0, 1, 2, 3
I
T3_MAT1
–
Match Output 1 of timer 3
O
3
GPIO5.3/I2C1_SDA/TXD3/CTIN1/
T3_MAT0
GPIO5.3
–
General Purpose I/O
I/O
I2C1_SDA
–
I2C Channel 1 Serial Data
I/O
TXD3
–
UART Channel 3 Transmit Data
O
CTIN1
–
SCT Input 1 of timer 0, 1, 2, 3
I
T3_MAT0
–
Match Output 0 of timer 3
O
4
GPIO4.12/SSP0_SSEL
GPIO4.12
–
General Purpose I/O
I/O
SSP0_SSEL
–
SPI Channel 0 Slave Select
I/O
5
GPIO3.8/CT_OUT14
GPIO3.8
–
General Purpose I/O
I/O
CT_OUT14
–
SCT output 14, Match output 2 of timer 3
O
6
GPIO6.2/RTS1/ADC1.0
GPIO6.2
–
General Purpose I/O
I/O
RTS1
–
UART Channel 1 Request to Send
O
ADC1.0
–
ADC Channel 1 input 0
I
7
GPIO6.1/CTS1
GPIO6.1
–
General Purpose I/O
I/O
CTS1
–
UART Channel 1 Clear to Send Input
I
8
GPIO6.13/RXD1
GPIO6.13
–
General Purpose I/O
I/O
