Technical data

• Firmware ability to wake up and reset a suspended device
• 8, 16, 32, and 64-byte FIFO sizes for non-isochronous transfers
• 64, 256, 512, and 1024-byte FIFO sizes for isochronous transfers
• Trace debug port for Wireless CPU® diagnostics
The USB interface supports 3GPP TS 27.010 multiplexing, and may be used as the
primary AT-command interface.
Internally, the USBDP line is pulled up by a 1.5K resistor, in accordance with the USB
standard, to indicate that it’s a full-speed capable device to the USB controller.
To implement successful applications using the GR64 USB interface, users should
familiarize themselves with the USB specification.
4.12 SIM Card Interface
Pin Name Direction Function
15 SIMVCC Output 1.8V or 3.0V SIM card supply
16 SIMDET Input SIM presence detection
17 SIMRST Output SIM card reset signal
18 SIMDAT In/Out SIM card data
19 SIMCLK Output SIM card clock signal
This interface allows the user to communicate with the smart (SIM) card in the user
application. The GR64 offers alternative arrangements for accessing the SIM
depending on which variant of the GR64 is used. Both variants provide this interface
through the system connector, referred to as the external or remote SIM interface to
distinguish it from the integrated SIM interface.
The maximum distance between the SIM card holder and the Wireless
CPU® varies depending on the application implementation. SIM holders
placed too far away from the Wireless CPU® may not meet the SIM
interface performance specification.
NOTE
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son autorisation préalable
GR64 Integrators’ Manual
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