8-3
Application Notes
Hardware Trigger Timing
tglwl
Trigger hold time, level trigger mode,
(see note 6)
6
msec
tghtw
Trigger release time, level trigger mode
(see note 6)
25
msec
tglwl
Trigger hold time, pulse trigger mode, (see
note 6)
6
msec
tghtw
Trigger release time, pulse trigger mode,
(see note 6)
25
msec
Beeper Timing
tblht
Beeper frequency
1800
2500
Hz
Power Up Timing
tehpm
V
BATT
rise time
10
msec
Wake Up Timing
taldl
From wake up to full operation,
(see note 5)
TBD
msec
tdlgl
Trigger low after full operation,
(see notes 6 and 7)
0
TBD
sec
Table 8-1. Timing Characteristics (Continued)
Symbol
Figure
Parameter
Min
Max
Unit
Notes:
1.If byte to byte delay exceeds the maximum specified time, a transmission error occurs. The
sender must retransmit the entire packet.
2. The host may hold the Host RTS* low indefinitely, but it locks out the SE 2223/3223 from
transmitting.
3. The decoder may transmit any time the Host RTS* is high.
4. The host should release its Host RTS* as soon as possible after transmitting so that the
decoder can process the message.
5. The SE 2223/3223's micro-controller is in full operation whenever the PWRDWN line is driven
low.
6. See
Power Management
on page 1-5
if trigger is not pulled after the maximum specified
amount of time.
7. In addition, refer to
Parameter # 88h
on page 9-13 and
Parameter # 8Ah
on page 9-15.
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