AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 145

• Manufacturer Part Number: AT89C51SND2C-7FTUL
• Description: IC 8051 MCU FLASH 64K MP3 100BGA
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51SND2C-7FTUL

• 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: 32
• 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; D/A 2x20b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFBGA
• Data Bus Width: 8 bit
• Data Ram Size: 2.25 KB
• Interface Type: ATAPI, I2S, IDE, SPI, UART, USB
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: AT89C51SND2C7FTUL

Figure 18-16. Data Stream Transmission Flows
4341H–MP3–10/07
write 16 data to MMDAT
write 8 data to MMDAT
Start Transmission
STOP Command
a. Polling mode
F1EI or F2EI = 1?
Transmission
Data Stream
No More Data
FIFO Empty?
FIFOs Filling
FIFO Filling
DATEN = 1
DATEN = 0
To Send?
Send
which is set every time CBUSY toggles, i.e. when the card enters and exits its busy state. This
flag may generate an MMC interrupt request as detailed in Section "Interrupt", page 148.
write 16 data to MMDAT
Unmask FIFOs Empty
Start Transmission
Data Stream
Initialization
FIFOs Filling
DATEN = 1
DATEN = 0
F1EM = 0
F2EM = 0
b. Interrupt mode
AT8xC51SND2C/MP3B
write 8 data to MMDAT
Transmission ISR
STOP Command
Mask FIFOs Empty
F1EI or F2EI = 1?
Data Stream
No More Data
FIFO Empty?
FIFO Filling
To Send?
F1EM = 1
F2EM = 1
Send
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