User's Guide

LM940 HW Design Guide
1VV0301352 Rev. 2 Page 21 of 68 2017-07-19
SIM Card Interface 2
13 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
7 SIMRST2 O Reset output to an
external UIM2 card
1.8 / 2.85V
Digital I/O (GPIOs)
3 GPIO_01 I/O General purpose
I/O, SIMIN1
depending on
product
1.8V
5 GPIO_02 I/O General purpose
I/O, SIMIN2
depending on
product
1.8V
44 GPIO_03 I/O General purpose I/O 1.8V
46 GPIO_04 I/O General purpose I/O 1.8V
Control Signal
1 WAKE_N O Host wake-up 1.8V
20 W_DISABLE_N I RF disable 1.8V
42 WAN_LED_N O LED control 1.8V
Miscellaneous Functions
11 VREG_L6_1P8 O Reference Voltage 1.8V Power