User's Manual

MaxStream 9XStream™ Wireless OEM Module Manual v2.8
46
Confidential and Proprietary, ©MaxStream, Inc. 2001
T=13.2 ms
For 28<B<54,
T=19.2 ms
T=23.2 ms
For 21<B<45,
T=34.5 ms
AC Characteristics
Pin Timings (SY=10)
(cont.)
Symbol
Description X09-019 19200 Timing
Formulas*
(B = Number of Bytes)
X09-
009
9600 Timing
Formulas*
(B = Number of
Bytes)
(T measured in ms)
T
P2
Time duration of
data bits in data
packet.
12.8 ms For all B,
T=0.4B ms
25.6 ms For all B,
T=0.8B ms
T
P3
Time duration of
CRC bits in data
packet.
0.83 ms For all B,
T=0.8 ms
1.6 ms For all B,
T=1.6 ms
T
TL1
Time from when
data packet is
transmitted until
TX/PWR first
pulses low.
6.04 ms For all B,
T=6.04 ms
9.08 ms For all B,
T=9.08 ms
T
TL2
Time that TX/PWR
pin is driven low
(when red LED
flashes).
6.44 ms For 0<B<9,
T=3.24+(0.4*B)
For B>8,
T=6.44 ms
11.3 ms For 0<B<6,
T= 6.5+(0.8*B)
ms
For B>5,
T=11.3 ms
T
RL1
Time from when
data packet is
transmitted until
RXLED pin first
goes high on
receiver.
8.44 ms For all B,
T=8.44 ms
14 ms For all B,
T=14 ms
T
RL2
Time that RXLED
pin is driven low
(when yellow LED
flashes).
4.28 ms For 0<B<10,
T 0.8+(0.4*B)
For B>9,
T=4.28 ms
5.68 ms For 0<B<6,
T=1.6+(0.82*B)
For B>5,
T=5.68 ms
* Note: The timing formulas are approximations over a specified range of bytes. They are
accurate to within 1 – 2 milliseconds.