User's Manual
Table Of Contents
- Contents
- Figures
- Tables
- Document History
- Introduction
- Product concept
- Application Interface
- Antenna interface
- Electrical, reliability and radio characteristics
- Mechanics
- Reference Approval
- List of parts and accessories
MC46 Hardware Interface Description
Confidential / Released
s
mo b i l e
MC46_HD_V03.05 Page 58 of 99 13.11.2003
3.12 Control signals
3.12.1 Inputs
Table 17: Input control signals of the MC46 module
Signal Pin Pin status Function Remarks
Falling edge Power up MC46
Ignition
/IGT
Left open or HiZ No operation
Active low ³ 100ms (Open
drain/collector driver to GND
required in cellular device
application).
Note: If a charger and a
battery is connected to the
customer application the /IGT
signal must be 1s minimum.
Low Power down MC46
Emergency
shutdown
/EMERG-
OFF
Left open or HiZ No operation
Active low ³ 3.2s (Open
drain/collector driver required
in cellular device application).
At the /EMERGOFF signal the
watchdog signal of the GSM
engine can be traced (see
description in Table 27).
(HiZ = high impedance)