Specifications

Wireless CPU
®
Q24 Series
Interfaces
©Confidential Page: 20 / 83
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without
prior written agreement.
WM_PRJ_Q24NG_PTS_001-004
January 16, 2007
The available interfaces on the GPC are shown below:
OS 6.57 Open AT
®
Section Name
Supported
Not
supported
Supported
Not
supported
3.4 Serial interface X X
3.5 Keyboard Interface X X
3.6 Main Serial Link X X
3.7 Auxiliary Serial Link X X
3.8 SIM interface X X
3.9 General Purpose IO X X
3.10
Activity status
indication
X X
3.11
Analog to digital
converter
X X
0 Audio Interface X X
3.14 Battery charging
interface
X X
3.15 ON/~OFF X X
3.16 Boot X X
3.17 Reset X X
3.18 External interrupt X X
3.19 VCC output X X
3.20 Real Time Clock X X
3.21 RF interface X X
3.2 Power Supply
3.2.1 Power Supply Description
The power supply is one of the key factors in the design of a GSM terminal.
Due to the burst emission in GSM / GPRS, the power supply must be able to deliver
high current peaks in a short time. During these peaks, the ripple (Uripp) on the
supply voltage must not exceed the limits specified; see the table "Maximum voltage
ripple (Uripp) vs Frequency" given below.
• In communication mode, a GSM/GPRS class 2 terminal emits 577μs radio
bursts every 4.615ms. (see the
Figure 2: Power supply during burst
emission).
• In communication mode, a GPRS class 10 terminal emits 1154μs radio bursts
every 4.615ms.