AT80C51SND1C-ROTUL Atmel, AT80C51SND1C-ROTUL Datasheet - Page 71
AT80C51SND1C-ROTUL
Manufacturer Part Number
AT80C51SND1C-ROTUL
Description
IC MCU FLASH MP3 DECODER 80-TQFP
Manufacturer
Atmel
Series
80Cr
Datasheet
1.AT80C51SND1C-ROTIL.pdf
(213 pages)
Specifications of AT80C51SND1C-ROTUL
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, IDE/ATAPI, MMC, SPI, UART/USART, USB
Peripherals
Audio, I²S, MP3, PCM, POR, WDT
Number Of I /o
44
Program Memory Type
ROMless
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 2x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TQFP, 80-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
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4109L–8051–02/08
Reset Value = 0000 0001b
Table 75. MP3DAT Register
MP3DAT (S:ACh) – MP3 Data Register
Reset Value = 0000 0000b
Table 76. MP3STA1 Register
MP3STA1 (S:AFh) – MP3 Decoder Status Register 1
Reset Value = 0001 0001b
Table 77. MP3ANC Register
MP3ANC (S:ADh Read Only) – MP3 Ancillary Data Register
Number
Number
Number
MPD7
AND7
2 - 1
7 - 0
7 - 5
2 - 0
Bit
Bit
Bit
0
7
7
4
3
7
-
Mnemonic Description
Mnemonic Description
Mnemonic Description
MPFREQ
MPBREQ
MPFS1:0
MPD7:0
MPVER
MPD6
AND6
Bit
Bit
Bit
6
6
6
-
-
-
Frequency Sampling Bits
Refer to Table 72 for bits description.
MPEG Version Bit
Set by the MP3 decoder when the loaded frame is a MPEG I frame.
Cleared by the MP3 decoder when the loaded frame is a MPEG II frame.
Input Stream Data Buffer
8-bit MP3 stream data input buffer.
Reserved
The value read from these bits is always 0. Do not set these bits.
MP3 Frame Data Request Flag
Set by hardware when MP3 decoder request data.
Cleared when MP3 decoder no more request data .
MP3 Byte Data Request Flag
Set by hardware when MP3 decoder request data.
Cleared when writing to MP3DAT.
Reserved
The value read from these bits is always 0. Do not set these bits.
MPD5
AND5
5
5
5
-
MPFREQ
MPD4
AND4
4
4
4
MPFREQ
MPD3
AND3
3
3
3
AT8xC51SND1C
MPD2
AND2
2
2
2
-
MPD1
AND1
1
1
1
-
MPD0
AND0
0
0
0
-
71
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