Specifications
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.1.1 Pad Assignment
- 2.1.2 Signal Properties
- 2.1.3 USB Interface
- 2.1.4 Serial Interface ASC0
- 2.1.5 Serial Interface ASC1
- 2.1.6 Inter-Integrated Circuit Interface
- 2.1.7 UICC/SIM/USIM Interface
- 2.1.8 Enhanced ESD Protection for SIM Interfaces
- 2.1.9 Digital Audio Interface
- 2.1.10 Analog-to-Digital Converter (ADC)
- 2.1.11 RTC Backup
- 2.1.12 GPIO Interface
- 2.1.13 Control Signals
- 2.1.14 JTAG Interface
- 2.1.15 eMMC Interface
- 2.2 GSM/UMTS/LTE Antenna Interface
- 2.3 GNSS Antenna Interface
- 2.4 Sample Application
- 2.1 Application Interface
- 3 GNSS Interface
- 4 Operating Characteristics
- 5 Mechanical Dimensions and Mounting
- 6 Regulatory and Type Approval Information
- 7 Document Information
- 8 Appendix
Cinterion
®
ALAS5V Hardware Interface Description
4.2 Power Up/Power Down Scenarios
96
ALAS5V_HID_v00.030a 2019-03-20
Confidential / Preliminary
Page 77 of 124
4.2.3.5 Overall Shutdown Sequence
In case the above described dedicated software or hardware controlled shutdown procedures
fail or hang for some reason, it may become necessary to disconnect BATT+ in order to ulti-
mately shut down the module. Figure 33 shows a flow chart that illustrates how an overall shut-
down sequence might be implemented.
Figure 33: Overall shutdown sequence
Moduleswitchoff...
Waitforatle ast25seconds
Switchedoff?
(PWR_IND=High?)
OK,
finished
Yes
No
ActivateEMERG_OFFline
Waitforatleast1second
OK,
finished
Yes
No
DisconnectBA TT+
Switchedoff?
(PWR_IND=High?)
OK,
finished
SWcontrolled:Enter“ AT^SM SO“
HWcontrolled:TurnoffusingIGTline