User Guide

LM960 HW Design Guide
1VV0301485 Rev. 3 Page 44 of 74 2018-12-14
6.5.3. SIM Interface
The LM960 supports two external SIM interfaces (1.8V or 2.85V).
Below table lists the SIM interface signals.
SIM Interface Signals
6.5.3.1. SIM Schematic Example
The following Figures illustrate in particular how the application side should be designed.
SIM Schematics
PIN Signal I/O Function Type Comment
SIM Card Interface 1
8 SIMVCC1 O Supply output for an
external UIM1 card
1.8V / 2.85V Power
10 SIMIO1 I/O Data connection with an
external UIM1 card
1.8V / 2.85V
12 SIMCLK1 O Clock output to an
external UIM1 card
1.8V / 2.85V
14 SIMRST1 O Reset output to an
external UIM1 card
1.8V / 2.85V
SIM Card Interface 2
16 SIMVCC2 O Supply output for an
external UIM2 card
1.8 / 2.85V Power
19 SIMIO2 I/O Data connection with an
external UIM2 card
1.8 / 2.85V
17 SIMCLK2 O Clock output to an
external UIM2 card
1.8 / 2.85V
6 SIMRST2 O Reset output to an
external UIM2 card
1.8 / 2.85V
Digital I/O (GPIOs)
3 GPIO_01 I UIM1 Card Present
Detect
1.8V GPIO_01 can be
used as SIMIN1
5 GPIO_02 I UIM2 Card Present
Detect
1.8V GPIO_02 can be
used as SIMIN2