User's Manual

Cinterion
®
Java Terminals Hardware Interface Overview
3.6 GPIO Interface
39
 EHSxT_BGS5T_HIO_v02 2015-02-10
Confidential / Released
Page 26 of 50
The following Table 13 shows the availablility of the GPIO connector pins for various Java Ter-
minal variants.
Please refer to the respective “AT Command Set“ for details on how to configure the GPIO pins
using AT commands.
Table 13: GPIO connector pin availability and alternate pin functionalities
PIN Signal Comment EHS5T
RS485
EHS6T
USB
EHS6T
LAN
BGS5T
USB
8-pin connector
1 GPIO6 Configurable via AT command,
also as PWM2 signal
 
2 GPIO7 Configurable via AT command,
also as PWM1 signal
 
3 GPIO8 Configurable via AT command,
also as COUNTER signal
 
4 GPIO11 Configurable via AT command -  -
5 GPIO12 Configurable via AT command -
 -
6 GPIO13 Configurable via AT command -
 -
7 GPIO22 Configurable via AT command
also as TFSDAI
 
8 GPIO23 Configurable via AT command
also as SCLK
 
12-pin connector
1 VCCref Input supply for level adjust-
ment. E.g., connect +5Vout for
5V IO operation
 
2GND  
3TXD1 or
SPI_MISO
Configurable via AT command,
also as SPI_MISO signal
TXD1 TXD1 /
SPI_MISO
TXD1 /
SPI_MISO
TXD1
4 RXD1 or
SPI_MOSI
Configurable via AT command,
also as SPI_MOSI signal
RXD1 RXD1 /
SPI_MOSI
RXD1 /
SPI_MOSI
RXD1
5CTS1 or
SPI_CS or
A+
CTS1 (RS-232) or
SPI_CS or A+ (for RS-485)
depending on product variant
A+
(RS-485)
CTS1 /
SPI_CS
CTS1 /
SPI_CS
CTS1
6RTS1 or
B-
RTS1 (RS-232) or
B- (for RS-485)
depending on product variant
B-
(RS-485
RTS1 RTS1 RTS1
7 +5Vout External power supply up to
100mA, usable as VCCref input
 
8 DSR0 or
ADC1_IN or
SPI_CLK
Configurable via AT command DSR0 /
ADC1_IN
 DSR0 /
ADC1_IN
9 I2CDAT I
2
C interface 
 

10 I2CCLK I
2
C interface  
11 GPIO20 Configurable via AT command
also as TXDDAI
 
12 GPIO21 Configurable via AT command
also as RXDDAI
 