PRELIMINARY ISD1700 SERIES
Publication Release Date: Nov 6, 2008
- 23 -
Revision 1.31
•
If SE2 is not recorded, device will flash LED twice with blinking period T
LS2
.
•
However, if SE2 is recorded, device plays SE2 and blinks the LED twice
simultaneously. The LED blinking period is determined by the recorded duration, T
SE2
,
of SE2.
c) If the device is currently playing a message that is not the last one, then the device:
•
Halts the playback operation.
•
Advances the playback pointer to the next message.
•
If SE1 is not recorded, device will flash LED once with blinking period T
LS1
.
•
However, if SE1 is recorded, device plays SE1 and blinks the LED once
simultaneously. The LED blinking period is determined by the recorded duration, T
SE1
,
of SE1.
•
Playback the new message.
•
The LED flashes during this entire process.
d) If the device is currently playing the last message, then the device:
•
Halts the playback operation.
•
Advances the playback pointer to the first message.
•
If SE2 is not recorded, device will flash LED twice with blinking period T
LS2
.
•
However, if SE2 is recorded, device simultaneously plays SE2 and blinks the LED
twice. The LED blinking period is determined by the recorded duration, T
SE2
, of SE2.
•
Playback the first message.
•
The LED flashes during this entire process.
Triggering of the
FWD
operation during an erase or record operation is an illegal operation
and will be ignored.
8.2.4
Erase Operation
Erasing individual message takes place only if the playback pointer is at either the first or the
last message. Erasing individual messages other than the first or last message is not
permitted in standalone mode. However, global erase can be executed at any message
location and will erase all messages, once completed successfully. The
ERASE
is
debounced internally. These two erase modes are described as follows:
a)
Individual Erase
: Only the first or last messages can be individually erased. Pulsing
ERASE
Low enables device responses differently pending upon the status of the device
and the current location of the playback pointer:
•
If the device is in power down mode and the playback pointer currently points to the
first (or last) message, then the device will:
o
Erase first (or last) message and flash LED twice with blinking period T
LS2
, if SE2 is
not programmed.
o
If SE2 is programmed, simultaneously play SE2 and flash the LED twice. The LED
blinking period is determined by the recorded duration, T
SE2
, of SE2.
