Specifications

Cinterion
®
EHS8 Hardware Interface Overview
1.2 EHS8 System Overview
11
 EHS8_HIO_v04.000 2019-03-04
Confidential / Preliminary
Page 11 of 42
1.2 EHS8 System Overview
Figure 1: EHS8 system overview
GPIO
interface
I2C
USB
ASC0 lines
HSIC LPM/
ASC1/SPI
CONTROL
RTC
POWER
ANTENNA
Module
SIM interface
(with SIM detection)
SIM card
Application
Power supply
Backup supply
Emergency reset
AUTO_ON, ON
HSIC LPM/
Serial interface/
SPI interface
Serial modem
interface lines
I2C
GPIO
3
4
4
5
2
5
2
1
1
2
USB
GSM antenna
1
PCM
Digital audio
(PCM)
4
Status LED
1
DAC (PWM) PWM
2
Fast
shutdown
Fast shutdown
1
1
ADC ADC
1
HSIC
2
HSIC
COUNTER
Pulse counter
1
ASC0 lines
Serial modem
interface lines/
SPI interface
4
GPS
GPS antenna
1
Power supply
1