User's Manual
Table Of Contents
- Document History
- Introduction
- Product Concept
- Application Interface
- Operating Modes
- Power Supply
- Power Up / Power Down Scenarios
- Automatic GPRS Multislot Class Change
- Charging Control
- Summary of State Transitions (Except SLEEP Mode)
- RTC Backup
- SIM Interface
- Serial Interface ASC0
- Serial Interface ASC1
- USB Interface
- I2C Interface
- Audio Interfaces
- Control Signals
- Antenna Interface
- Electrical, Reliability and Radio Characteristics
- Mechanics
- Sample Application
- Reference Approval
- Appendix
TC63 Hardware Interface Description
Strictly confidential / Draft
s
TC63_HD_V00.432 Page 71 of 97 11.05.2005
Function Signal name IO Signal form and level Comment
Power
indicator
PWR_IND O V
IH
max = 10V
V
OL
max = 0.4V at Imax = 2mA
PWR_IND (Power Indicator)
notifies the module’s on/off
state.
PWR_IND is an open
collector that needs to be
connected to an external pull-
up resistor. Low state of the
open collector indicates that
the module is on. Vice versa,
high level notifies the Power-
down mode.
Therefore, the pin may be
used to enable external
voltage regulators which
supply an external logic for
communication with the
module, e.g. level converters.
Ignition IGT I
R
I
30kΩ, C
I
10nF
V
IL
max = 0.8V at Imax = -150µA
V
OH
max = 4.5V (V
BATT+
)
ON
~~~
|____|
~~~
Active Low ≥ 400ms
This signal switches the
mobile on.
This line must be driven low
by an open drain or open
collector driver.
Emergency
reset
EMERG_RST I
R
I
5kΩ
V
IL
max = 0.2V at Imax = -0.5mA
V
OH
min = 1.75V
V
OH
max = 3.05V
Signal
~~~
|______|
~~~
Pull down ≥ 10ms
Reset or turn-off in case of
emergency: Pull down and
release EMERG_RST. Then,
activating IGT for 400ms will
reset TC63. If IGT is not
activated for 400ms, TC63
switches off.
Data stored in the volatile
memory will be lost. For
orderly software controlled
reset rather use the
AT+CFUN command (e.g.
AT+CFUN=,1).
This line must be driven by
open drain or open collector.
If unused keep pin open.
V
OL
max = 0.3V at I = 0.1mA
V
OH
min = 2.3V at I = -0.1mA
V
OH
max = 0.05V
Synchroni-
zation
SYNC O
n Tx = n x 577µs impulse each 4.616ms,
with ___µs forward time.
There are two alternative
options for using the SYNC
pin:
a) Indicating increased
current consumption during
uplink transmission burst.
Note that the timing of the
signal is different during
handover.
b) Driving a status LED to
indicate different operating
modes of TC63. The LED
must be installed in the host
application.
If unused keep pin open.
RTC backup VDDLP I/O R
I
1k
V
O
max = 4.5V
V
BATT+
= 4.3V:
V
O
= 3.2V at I
O
= -500µA
V
BATT+
= 0V:
V
I
= 2.7V…4.5V at I
max
= 15µA
If unused keep pin open.