AT89C51SND1C-7HTUL Atmel, AT89C51SND1C-7HTUL Datasheet - Page 70

• Manufacturer Part Number: AT89C51SND1C-7HTUL
• Description: IC MCU 64KB FLASH MEM 81-CBGA
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51SND1C-7HTUL

• 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 Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 2x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 81-CBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

70
AT8xC51SND1C
Reset Value = 0011 1111b
Table 74. MP3STA Register
MP3STA (S:C8h Read Only) – MP3 Decoder Status Register
Number
Number
MPANC
Bit
Bit
6
5
4
3
2
1
0
7
7
6
5
4
3
Mnemonic Description
Mnemonic Description
MSKANC
MSKREQ
MSKCRC
ERRCRC
MPBBST
MSKSYN
ERRSYN
MSKLAY
ERRLAY
MPREQ
MPREQ
CRCEN
MPANC
Bit
Bit
6
Bass Boost Bit
Set to enable the bass boost sound effect.
Clear to disable the bass boost sound effect.
CRC Check Enable Bit
Set to enable processing of frame that contains CRC error. Frame is played
whatever the error.
Clear to disable processing of frame that contains CRC error. Frame is skipped.
MPANC Flag Mask Bit
Set to prevent the MPANC flag from generating a MP3 interrupt.
Clear to allow the MPANC flag to generate a MP3 interrupt.
MPREQ Flag Mask Bit
Set to prevent the MPREQ flag from generating a MP3 interrupt.
Clear to allow the MPREQ flag to generate a MP3 interrupt.
ERRLAY Flag Mask Bit
Set to prevent the ERRLAY flag from generating a MP3 interrupt.
Clear to allow the ERRLAY flag to generate a MP3 interrupt.
ERRSYN Flag Mask Bit
Set to prevent the ERRSYN flag from generating a MP3 interrupt.
Clear to allow the ERRSYN flag to generate a MP3 interrupt.
ERRCRC Flag Mask Bit
Set to prevent the ERRCRC flag from generating a MP3 interrupt.
Clear to allow the ERRCRC flag to generate a MP3 interrupt.
Ancillary Data Available Flag
Set by hardware as soon as one ancillary data is available (buffer not empty).
Cleared by hardware when no more ancillary data is available (buffer empty).
MP3 Data Request Flag
Set by hardware when MP3 decoder request data.
Cleared when reading MP3STA.
Invalid Layer Error Flag
Set by hardware when an invalid layer is encountered.
Cleared when reading MP3STA.
Frame Synchronization Error Flag
Set by hardware when no synchronization pattern is encountered in a frame.
Cleared when reading MP3STA.
CRC Error Flag
Set by hardware when a frame handling CRC is corrupted.
Cleared when reading MP3STA.
ERRLAY
5
ERRSYN
4
ERRCRC
3
MPFS1
2
MPFS0
1
4109L–8051–02/08
MPVER
0