T5743 Ver la hoja de datos (PDF) - Atmel Corporation
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T5743 Datasheet PDF : 41 Pages
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Table 4. Effect of the Configuration Words Within the Registers
Bit 1 Bit 2 Bit 3
Bit 4
Bit 5 Bit 6 Bit 7 Bit 8 Bit 9
OFF-command
1
OPMODE register
BR_Range
NBit-check
Modu-
lation
0
1
Baud1
Baud0
BitChk1 BitChk0
ASK/_
FSK
Sleep4 Sleep3
Default values
of Bit 3...14
0
0
0
1
0
0
0
LIMIT register
Lim_min
0
0
Lim_
Lim_
Lim_ Lim_ Lim_ Lim_ Lim_
min5
min4
min3 min2 min1 min0 max5
Default values
of Bit 3...14
0
1
0
1
0
1
1
Bit 10
Sleep
Sleep2
1
Lim_
max4
0
Bit 11 Bit 12
Sleep1 Sleep0
1
0
Lim_max
Lim_
max3
Lim_
max2
1
0
Bit 13
Bit 14 Bit 15
X
Noise
Sleep Suppression
0
XSleepStd
Noise_
Disable
0
1
Lim_
max1
Lim_max0
0
0
1
Table 5 to Table 12 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 TLim_min and TLim_max as shown in table 11 and
table 12.
Table 5. Effect of the Configuration Word BR_Range
BR_Range
Baud1 Baud0 Baud-Rate Range/Extension Factor for Bit-Check Limits (XLim)
0
0
BR_Range0 (application USA/Europe: BR_Range0 = 1.0 kBaud to
1.8 kBaud) XLim = 8 (default)
0
1
BR_Range1 (application USA/Europe: BR_Range1 = 1.8 kBaud to
3.2 kBaud) XLim = 4
1
0
BR_Range2 (application USA/Europe: BR_Range2 = 3.2 kBaud to
5.6 kBaud) XLim = 2
1
1
BR_Range3 (application USA/Europe: BR_Range3 = 5.6 kBaud to
10 kBaud) XLim = 1
Table 6. Effect of the Configuration Word NBit-check
NBit-check
BitChk1
BitChk0
Number of Bits to be Checked
0
0
0
0
1
3 (default)
1
0
6
1
1
9
24 T5743
4569A–RKE–12/02
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