TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R28
System description
Page 15 of 164
Function Pin name
Pin No
I/O
Description
Remarks
UART
RXD
17
O
UART data output
Not supported by “00” product versions.
1.8 V output, Circuit 104 (RXD) in ITU-T V.24,
for AT and data communication, FOAT, diagnostic.
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
TXD
16
I
UART data input
Not supported by “00” product versions.
1.8 V input, Circuit 103 (TXD) in ITU-T V.24,
for AT and data communication, FOAT, diagnostic.
Internal active pull-up to V_INT.
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
CTS
15
O
UART clear to send
output
Not supported by “00” product versions.
1.8 V output, Circuit 106 (CTS) in ITU-T V.24.
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
RTS
14
I
UART ready to send
input
Not supported by “00” product versions.
1.8 V input, Circuit 105 (RTS) in ITU-T V.24.
Internal active pull-up to V_INT.
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
DSR
10
O /
I/O
UART data set
ready output / GPIO
UART DSR not supported by “00” product versions;
GPIO not supported by “00”, “01”, “60” versions.
1.8 V, Circuit 107 in ITU-T V.24, configurable as GPIO.
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
RI
11
O /
I/O
UART ring indicator
output / GPIO
RI not supported by “00” product versions;
GPIO not supported by “00”, “01”, “60” versions.
1.8 V, Circuit 125 in ITU-T V.24, configurable as GPIO.
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
DTR
13
I /
I/O
UART data terminal
ready input / GPIO
UART DTR not supported by “00” product versions;
GPIO not supported by “00”, “01”, “60” versions.
1.8 V, Circuit 108/2 in ITU-T V.24, configurable as GPIO.
Internal active pull-up to V_INT when configured as DTR
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
DCD
12
O /
I/O
UART data carrier
detect output / GPIO
UART DCD not supported by “00” product versions;
GPIO not supported by “00”, “01”, “60” versions.
1.8 V, Circuit 109 in ITU-T V.24, configurable as GPIO.
Test-Point and series 0
recommended for diagnostic.
See section
for functional description.
See section
for external circuit design-in.
