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
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ALAS5V Hardware Interface Description
2.1 Application Interface
67
ALAS5V_HID_v00.030a 2019-03-20
Confidential / Preliminary
Page 42 of 124
2.1.15 eMMC Interface
ALAS5V has an eMMC interface that can be used for development and test purposes, e.g., to
write crash dumps from the module’s FFS to eMMC. To connect an eMMC a separate, addi-
tional power supply is required as described in Section 2.1.15.1.
2.1.15.1 eMMC Power Supply
An eMMC requires two separate power supplies normally named VCC (3V3) and VCCQ (3V3
/ 1V8). ALAS5V however, provides only a single power supply pad for eMMC, i.e., the
EMMC_PWR pad. Therefore, an additional external power supply for the eMMC is necessary,
and can for instance be provided through a voltage regulator enabled with the EMMC_PWR
line.
A sample connecting circuit is shown in Figure 15. Note that with ALAS5V the EMMC_PWR
line switches from 2.95V to 1.8V during eMMC operation.
Figure 15: eMMC power supply
ALAS66 A‐W
EMMC_PWR
(2V95 / 1V8)
BATT+
EN
Vin Vout
eMMC
2V9
V
CC
V
CCQ
Voltage
Regulator
BATT+