GR4x to GR64 Migration Guide
2
Product Differences
This section identifies the major differences between GR64 and the predecessor
GR47/48 products. For all practical purposes the comparisons also reflect the
similarities and differences to the GM47/48 since these products are merely a subset
function of the GR products.
2.1
GR64 Variants
The GR64 is available in a number of variants. The major variance is described below,
and a table is included as a quick-guide reference.
2.1.1
Integrated SIM Variant
The integrated SIM variant GR64 has, as the name suggests, a physical SIM holder
mounted on the top side of the assembly. Like its predecessor it supports a SIM card
connected through the system connector (off-board). This version of the GR64 also
has a Real Time Clock (RTC) alarm output. Digital PCM connectivity is different to that
of legacy products. Level shifting circuitry is incorporated in the Wireless CPU®,
allowing the host to provide its own I/O reference.
Additionally, the integrated SIM variant is available with or without Embedded
Applications capability.
2.1.2
Legacy Variant
The legacy variant GR64 relies on an off-board SIM connection, accessible through
the system connector. The legacy variant does not support the RTC alarm, but does
allow legacy applications to retain digital PCM audio routing without making changes
to their application PCB. Level shifting circuitry is incorporated in the Wireless CPU®
providing instant compatibility with 2.8V/3.0V legacy technology, or allowing the host
to use a Wireless CPU®-originated I/O reference to level shift its application I/O.
Additionally, the integrated SIM variant is available with or without Embedded
Applications capability.
Migration Guide
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
GR4x to GR64
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