AT80C51SND1C-ROTIL Atmel, AT80C51SND1C-ROTIL Datasheet - Page 120
AT80C51SND1C-ROTIL
Manufacturer Part Number
AT80C51SND1C-ROTIL
Description
IC MCU FLASH MP3 DECODER 80-TQFP
Manufacturer
Atmel
Series
80Cr
Datasheet
1.AT80C51SND1C-ROTIL.pdf
(213 pages)
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
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Figure 16-17. Data Stream Transmission Flows
120
AT8xC51SND1C
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 123.
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
write 8 data to MMDAT
Transmission ISR
Mask FIFOs Empty
STOP Command
F1EI or F2EI = 1?
Data Stream
No More Data
FIFO Empty?
FIFO Filling
To Send?
F1EM = 1
F2EM = 1
Send
4109L–8051–02/08
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