Summary Of State Transitions; Table 12: State Transitions Of Mc45 - Siemens MC45 Manual

MC45 Hardware Interface Description
P R E L I M I N A R Y

3.3.5 Summary of state transitions

Table 12: State transitions of MC45

The table shows how to proceed from one mode to another (gray column = present mode, white columns = intended modes)
Further mode èèè
POWER DOWN
Present mode
POWER DOWN ---
mode without charger
POWER DOWN ---
mode with charger
(high level at POWER
pins of MC45)
**)
Normal mode AT^SMSO
or
exceptionally /EMERGOFF
pin > 3.2s at low level
*)
Charge-only mode Disconnect charger (MC45
POWER pin at low level)
or AT^SMSO or
exceptionally /EMERGOFF
pin >3.2s at low level
Charging in normal Via "Charge-only mode"
*) **)
mode or exceptionally
/EMERGOFF pin >3.2s at
low level
Alarm mode AT^SMSO or
exceptionally /EMERGOFF
pin >3.2s at low level
*)
See Chapter 3.2.3.4 for details on the charging mode
MC45_HD_01_V00.02a
**)
Normal mode Charge-only mode
/IGT >100 ms at low Connect charger to
level POWER (high level at
POWER)
/IGT (if supply voltage 100ms < /IGT < 500ms
is above 3.0V). No at low level
automatic transition,
but via POWER
DOWN mode without
charger
--- No automatic transition,
but via "POWER
DOWN"
No automatic ---
transition, but via
"Charge in Normal
mode"
Disconnect charger AT^SMSO
from POWER pin at
MC45
/IGT >100ms at low No transition
level
**)
Normal mode covers TALK, DATA, GPRS, IDLE and SLEEP modes
Page 45 of 90
*)
Charging in normal
*)**)
mode
No direct transition, but
via "Charge-only mode" or
"Normal mode"
/IGT >1 s at low level
Connect charger to
POWER pin at MC45
(high level at POWER)
/IGT >1s at low level
---
/IGT >100ms at low level
Alarm mode
Wake-up from POWER
DOWN mode (if
activated with AT+CALA)
Wake-up from POWER
DOWN mode (if
activated with AT+CALA)
AT+CALA followed by
AT^SMSO. MC45 enters
Alarm mode when
specified time is reached.
AT+CALA followed by
AT^SMSO. MC45 enters
Alarm mode when
specified time is reached
and V <3.3V
BATT+
No direct transition
---
12.08.2002