Siemens XT65 Hardware Overview page 16

XT65/XT75 Hardware Interface Overview
2.1 Key Features at a Glance
Feature
SIM Application Toolkit
TCP/IP stack
IP addresses
Remote SIM Access
Firmware update
Interfaces
Serial interface (ASC0)
USB
2
I C
SPI
Audio
SIM interface
Antenna
Module interface
Power on/off, Reset
Power on/off
Reset
XT65_XT75_HO_v00.130
Confidential / Preliminary
Implementation
SAT Release 99
Access by AT commands
IP version 4
XT65/XT75 supports Remote SIM Access. RSA enables XT65/XT75 to use a
remote SIM card via its serial interface and an external application, in addition to
the SIM card locally attached to the dedicated lines of the application interface.
The connection between the external application and the remote SIM card can be
a Bluetooth wireless link or a serial link.
The necessary protocols and procedures are implemented according to the "SIM
Access Profile Interoperability Specification of the Bluetooth Special Interest
Group".
Generic update from host application over ASC0 or USB. Over-the-air (OTA)
firmware update is possible via SPI interface.
- 8-wire modem interface with status and control lines, unbalanced,
asynchronous
- Fixed bit rates: 300 bps to 460,800 bps
- Autobauding: 1,200 bps to 460,800 bps
- RTS0/CTS0 and XON/XOFF flow control.
- Multiplex ability according to GSM 07.10 Multiplexer Protocol.
Supports a USB 2.0 Full Speed (12Mbit/s) slave interface.
2
I C bus for 7-bit addressing and transmission rates up to 400kbps. Programma-
ble with AT^SSPI command.
Alternatively, all pins of the I²C interface are configurable as 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.
2 analog interfaces (2 microphone inputs and 2 headphone outputs with micro-
phone power supply)
1 digital interface (PCM)
Supported SIM cards: 3V, 1.8V
• 50Ohms. External GSM antenna can be connected via antenna connector.
• 50Ohms. External GPS antenna can be connected via antenna connector.
80-pin board-to-board connector
Switch-on by hardware pin IGT
Switch-off by AT command (AT^SMSO)
Automatic switch-off in case of critical temperature and voltage conditions.
Orderly shutdown and reset by AT command
Emergency reset by hardware pin EMERG_RST and IGT.
Page 16 of 58
s
2006-10-12