AT80C51SND1C-ROTIL Atmel, AT80C51SND1C-ROTIL Datasheet - Page 69

• Manufacturer Part Number: AT80C51SND1C-ROTIL
• Description: IC MCU FLASH MP3 DECODER 80-TQFP
• Manufacturer: Atmel
• Series: 80Cr

Specifications of AT80C51SND1C-ROTIL

• 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: AT80C51SND1CROTIL

13.7
4109L–8051–02/08
Registers
Figure 13-6. MP3 Interrupt Service Routine Flow
Note:
Table 73. MP3CON Register
MP3CON (S:AAh) – MP3 Decoder Control Register
1. Test these bits only if needed (unmasked interrupt).
Number
MPEN
Bit
7
7
Mnemonic Description
MPBBST
MPEN
Bit
6
Reload MP3 Frame
Through MP3DAT
Synchro Error
Data Request
Write MP3 Data
to MP3DAT
Handler
Handler
MP3 Decoder Enable Bit
Set to enable the MP3 decoder.
Clear to disable the MP3 decoder.
CRCEN
5
MSKANC
4
Load New MP3 Frame
Ancillary Data?
Through MP3DAT
MP3 Decoder
Data Request?
Read MP3STA
Layer Error?
MPFREQ = 1?
Sync Error?
ERRSYN = 1?
ERRSYN = 1?
MPANC = 1?
CRC Error
Handler
ISR
MSKREQ
3
(1)
(1)
(1)
MSKLAY
AT8xC51SND1C
Read ANN2:0 Ancillary
Bytes From MP3ANC
2
Ancillary Data
Layer Error
Handler
Handler
MSKSYN
1
MSKCRC
0
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