User's Guide

LM940 HW Design Guide
1VV0301352 Rev. 2 Page 54 of 68 2017-07-19
8 SIMVCC1 O Supply output for an
external UIM1 card
1.8 / 2.85V Power
SIM Card Interface 2
7 SIMRST2 O Reset output to an
external UIM2 card
1.8 / 2.85V
17 SIMCLK2 O Clock output to an
external UIM2 card
1.8 / 2.85V
19 SIMIO2 I/O Data connection with
an external UIM2
card
1.8 / 2.85V
13 SIMVCC2 O Supply output for an
external UIM2 card
1.8 / 2.85V Power
Digital I/O (GPIOs)
3 GPIO_01 I/O General purpose I/O 1.8V
5 GPIO_02 I/O General purpose I/O 1.8V
44 GPIO_03 I/O General purpose I/O 1.8V
46 GPIO_04 I/O General purpose I/O 1.8V
1 WAKE_N O Host wake-up 1.8V Active Low
42 WAN_LED_N O LED control 1.8V
Power ON/OFF Reset IN/OUT
20 W_DISABLE_N I Module & RF
ON/OFF Control
1.8V Active Low
22 SYSTEM_RESET_N I Reset Input 1.8V Active Low
1.8V Voltage Regulator
11 VREG_L6_1P8 O LDO out for 1.8V Power