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AT83SND2CMP3 Scheda tecnica(PDF) 72 Page - ATMEL Corporation

Il numero della parte AT83SND2CMP3
Spiegazioni elettronici  Single-Chip MP3 Decoder with Full Audio Interface
PDF  97 Pages
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Produttore elettronici  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT83SND2CMP3 Scheda tecnica(HTML) 72 Page - ATMEL Corporation

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AT83SND2CMP3
7524B–MP3–05/06
Notes:
1. These frequencies are achieved in X1 mode, F
PER = FOSC ÷ 2.
2. These frequencies are achieved in X2 mode, F
PER = FOSC.
Baud Rate Selection (Mode 2)
In mode 2, the baud rate can only be programmed to 2 fixed values: 1/16 or 1/32 of the
peripheral clock frequency.
As shown in Figure 70 the selection is done using SMOD1 bit in PCON register.
Figure 71 gives the baud rate calculation formula depending on the selection.
Figure 70. Baud Rate Generator Selection (Mode 2)
Table 56. Internal Baud Rate Generator Value
Baud Rate
F
PER = 6 MHz
(1)
F
PER = 8 MHz
(1)
F
PER = 10 MHz
(1)
SPD
SMOD1
BRL
Error %
SPD
SMOD1
BRL
Error %
SPD
SMOD1
BRL
Error %
115200
--
--
---
--
--
-
57600
-
-
-
-
1
1
247
3.55
1
1
245
1.36
38400
1
1
246
2.34
1
1
243
0.16
1
1
240
1.73
19200
1
1
236
2.34
1
1
230
0.16
1
1
223
1.36
9600
1
1
217
0.16
1
1
204
0.16
1
1
191
0.16
4800
1
1
178
0.16
1
1
152
0.16
1
1
126
0.16
Baud Rate
F
PER = 12 MHz
(2)
F
PER = 16 MHz
(2)
F
PER = 20 MHz
(2)
SPD
SMOD1
BRL
Error %
SPD
SMOD1
BRL
Error %
SPD
SMOD1
BRL
Error %
115200
-
-
-
-
1
1
247
3.55
1
1
245
1.36
57600
1
1
243
0.16
1
1
239
2.12
1
1
234
1.36
38400
1
1
236
2.34
1
1
230
0.16
1
1
223
1.36
19200
1
1
217
0.16
1
1
204
0.16
1
1
191
0.16
9600
1
1
178
0.16
1
1
152
0.16
1
1
126
0.16
4800
1
1
100
0.16
1
1
48
0.16
1
0
126
0.16
0
1
SMOD1
PCON.7
PER
CLOCK
÷ 2
÷ 16
To Serial Port



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