EES3 Hardware Interface Description
2.1 Key Features at a Glance
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EES3_HD_v01.100b
Page 20 of 118
2009-08-12
Confidential / Released
I
2
C
I
2
C bus for 7-bit addressing and transmission rates up to 400kbps. Pro-
grammable with AT^SSPI command.
Alternatively, all lines of the I²C interface are configurable as SPI.
SPI
Serial Peripheral Interface for transmission rates up to 6.5 Mbps.
Programmable with AT^SSPI command.
If the SPI is active the I²C interface is not available.
Audio
2 analog interfaces
1 digital interface (PCM)
SIM interface
Supported SIM cards: 3V, 1.8V
Antenna
50
.
Power on/off, Reset
Power on/off
Switch-on by hardware signal IGT
Switch-off by AT command (AT^SMSO)
Automatic switch-off in case of critical temperature and voltage conditions.
Reset
Orderly shutdown and reset by AT command
Emergency reset by hardware signals EMERG_OFF and IGT.
Special features
Charging
Supports management of rechargeable Lithium Ion and Lithium Polymer
batteries
Real time clock
Timer functions via AT commands
Phonebook
SIM and phone
TTY/CTM support
Integrated CTM modem
Feature
Implementation