Instruction Manual

21
T5760/T5761
4561B–RKE–10/02
Table 3. Effect of the Configuration Words within the Registers
The following tables illustrate the effect of the individual configuration words. The default
configuration is highlighted for each word.
BR_Range sets the appropriate baud-rate range and simultaneously defines XLim.
XLim is used to define the bit-check limits T
Lim_min
and T
Lim_max
as shown in Table 10 and
Table 11.
Table 4. Effect of the configuration word BR_Range
Table 5. Effect of the Configuration word N
Bit-check
Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 Bit 9 Bit 10 Bit 11 Bit 12 Bit 13 Bit 14 Bit 15
OFF command
1– – – – – – – – – – – – – –
– OPMODE register –
01
BR_Range N
Bit-check
Modu-
lation
Sleep
X
Sleep
Noise
Suppres
sion
0
Baud1 Baud0 BitChk1 BitChk0
ASK/
_FSK
Sleep4 Sleep3 Sleep2 Sleep1 Sleep0
X
Sleep
Std
Noise_
Disable
Default
values of
Bit 3...14
00 0 100011001–
– LIMIT register –
00
Lim_min Lim_max –
Lim_
min5
Lim_
min4
Lim_
min3
Lim_
min2
Lim_
min1
Lim_
min0
Lim_
max5
Lim_
max4
Lim_
max3
Lim_
max2
Lim_
max1
Lim_
max0
0
Default
values of
Bit 3...14
01 0 101101001–
BR_Range
Baud-rate Range/Extension Factor for Bit-check Limits (XLim)Baud1 Baud0
00
BR_Range0
(application USA/Europe: BR_Range0 = 1.0 kBaud to 1.8 kBaud)
XLim = 8 (default)
01
BR_Range1
(application USA/Europe: BR_Range1 = 1.8 kBaud to 3.2 kBaud)
XLim = 4
10
BR_Range2
(application USA/Europe: BR_Range2 = 3.2 kBaud to 5.6 kBaud)
XLim = 2
11
BR_Range3
(Application USA/Europe: BR_Range3 = 5.6 kBaud to 10 kBaud)
XLim = 1
N
Bit-check
Number of Bits to be CheckedBitChk1 BitChk0
00 0
0 1 3 (default)
10 6
11 9