AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 144
![IC 8051 MCU FLASH 64K MP3 100BGA](/photos/12/43/124396/313-100-bga_sml.jpg)
AT89C51SND2C-7FTUL
Manufacturer Part Number
AT89C51SND2C-7FTUL
Description
IC 8051 MCU FLASH 64K MP3 100BGA
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51SND2C-7FTUL.pdf
(242 pages)
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
AT89C51SND2C-7FTUL
Manufacturer:
ATMEL
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18.6.3
18.6.3.1
18.6.3.2
18.6.3.3
18.6.3.4
18.6.3.5
144
AT8xC51SND2C/MP3B
Data Transmitter
Configuration
Data Loading
Data Transmission
End of Transmission
Busy Status
Figure 18-15. Data Controller Configuration Flows
For transmitting data to the card user must first configure the data controller in transmission
mode by setting the DATDIR bit in MMCON1 register.
Figure 18-16 summarizes the data stream transmission flows in both polling and interrupt modes
while Figure 18-17 summarizes the data block transmission flows in both polling and interrupt
modes, these flows assume that block length is greater than 16 data.
Data is loaded in the FIFO by writing to MMDAT register. Number of data loaded may vary from
1 to 16 Bytes. Then if necessary (more than 16 Bytes to send) user must wait that one FIFO
becomes empty (F1EI or F2EI set) before loading 8 new data.
Transmission is enabled by setting and clearing DATEN bit in MMCON1 register.
Data is transmitted immediately if the response has already been received, or is delayed after
the response reception if its status is correct. In both cases transmission is delayed if a card
sends a busy state on the data line until the end of this busy condition.
According to the MMC specification, the data transfer from the host to the card may not start
sooner than 2 MMC clock periods after the card response was received (formally N
ter). To address all card types, this delay can be programmed using DATD1:0 bits in MMCON2
register from 3 MMC clock periods when DATD1:0 bits are cleared to 9 MMC clock periods
when DATD1:0 bits are set, by step of 2 MMC clock periods.
The end of a data frame (block or stream) transmission is signalled to you by the EOFI flag in
MMINT register. This flag may generate an MMC interrupt request as detailed in Section "Inter-
rupt", page 148.
In data stream mode, EOFI flag is set, after reception of the End bit. This assumes user has pre-
viously sent the STOP command to the card, which is the only way to stop stream transfer.
In data block mode, EOFI flag is set, after reception of the CRC status token (see Figure 18-7).
2 other flags in MMSTA register: DATFS and CRC16S report a status on the frame sent. DATFS
indicates if the CRC status token format is correct or not, and CRC16S indicates if the card has
found the CRC16 of the block correct or not.
As shown in Figure 18-7 the card uses a busy token during a block write operation. This busy
status is reported to you by the CBUSY flag in MMSTA register and by the MCBI flag in MMINT
Configure Format
Configuration
Data Stream
DFMT = 0
Data Single Block
Configure Format
BLEN3:0 = XXXXb
Configuration
MBLOCK = 0
DFMT = 1
Data Multi-Block
Configure Format
BLEN3:0 = XXXXb
Configuration
MBLOCK = 1
DFMT = 1
4341H–MP3–10/07
WR
parame-
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