Installation Instructions

LISA-U2 series - System Integration Manual
UBX-13001118 - R19 Early Production Information Appendix
Page 167 of 175
LISA-U1 series
LISA-U2 series
No
Name
Description
Name
Description
Remarks for Migration
42
I2S_TXD
LISA-U120,
LISA-U130:
I
2
S Tx data output
LISA-U100,
LISA-U110:
RESERVED pin
I2S_TXD
LISA-U2 series:
1
st
I
2
S Tx data output
I2S_TXD, 1.8V typ.
 LISA-U120, LISA-U130:
o Output driver strength = 2.5 mA
 LISA-U2 series:
o Output driver strength = 2 mA
43
I2S_CLK
LISA-U120,
LISA-U130:
I
2
S clock
LISA-U100,
LISA-U110:
RESERVED pin
I2S_CLK
LISA-U2 series:
1
st
I
2
S clock
input/output
I2S_CLK, 1.8V typ.
 LISA-U120, LISA-U130:
o Output driver strength = 2.5 mA
o Internal active pull-down = 100 µA
 LISA-U2 series:
o Output driver strength = 2 mA
o Internal active pull-down = 200 µA
44
I2S_RXD
LISA-U120,
LISA-U130:
I
2
S Rx data input
LISA-U100,
LISA-U110:
RESERVED pin
I2S_RXD
LISA-U2 series:
1
st
I
2
S Rx data input
I2S_RXD, 1.8V typ.
 LISA-U120, LISA-U130:
o Output driver strength = 2.5 mA
o Internal active pull-down = 100 µA
 LISA-U2 series:
o Output driver strength = 2 mA
o Internal active pull-down = 200 µA
45
SCL
I
2
C bus clock line
output
SCL
I
2
C bus clock line
output
LISA-U1 series:
 I
2
C SCL for GNSS, 1.8V typ.
o Fixed open drain
o External pull-up (e.g. to V_INT) required
LISA-U2 series:
 I
2
C SCL for GNSS and other I
2
C devices, 1.8V typ.
o Fixed open drain
o External pull-up (e.g. to V_INT) required
46
SDA
I
2
C bus data line
input/output
SDA
I
2
C bus data line
input/output
LISA-U1 series:
 I
2
C SDA for GNSS, 1.8V typ.
o Fixed open drain
o External pull-up (e.g. to V_INT) required
LISA-U2 series:
 I
2
C SDA for GNSS and other I
2
C devices, 1.8V typ
o Fixed open drain
o External pull-up (e.g. to V_INT) required
47
SIM_CLK
SIM clock output
SIM_CLK
SIM clock output
No difference:
3.25 MHz clock frequency for SIM card
48
SIM_IO
SIM data
input/output
SIM_IO
SIM data
input/output
No difference:
Internal 4.7 kΩ pull-up resistor to VSIM.
49
SIM_RST
SIM reset output
SIM_RST
SIM reset output
No difference:
Reset output for SIM card
50
VSIM
SIM supply output
VSIM
SIM supply output
No difference:
VSIM output = 1.80 V typ or 2.90 V typ
51
GPIO5
GPIO
GPIO5
GPIO
Configurable GPIO, 1.8V typ.
 LISA-U1 series:
o Output driver strength = 2.5 mA
 LISA-U2 series:
o Output driver strength = 6 mA
Functions on all LISA-U series:
o Pad disabled
o Input / Output
o SIM card detection (default)
o Network Status Indication
o GNSS Supply Enable
Functions on LISA-U2 series only:
o Module Operating Mode Indication
o SIM card hot insertion/removal (+UDCONF)