AT80C51SND1C-ROTIL Atmel, AT80C51SND1C-ROTIL Datasheet - Page 83
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 15-4. SIE Block Diagram
15.1.3
4109L–8051–02/08
D+
Function Interface Unit (UFI)
D-
•
•
•
•
•
•
The Function Interface Unit provides the interface between the AT8xC51SND1C and the SIE. It
manages transactions at the packet level with minimal intervention from the device firmware,
which reads and writes the endpoint FIFOs.
Figure 15-6 shows typical USB IN and OUT transactions reporting the split in the hardware (UFI)
and software (C51) load.
CLOCK
USB
Bit stuffing and unstuffing.
CRC generation and checking.
ACKs and NACKs automatic generation.
TOKEN type identifying.
Address checking.
Clock recovery (using DPLL).
Start of Packet
End of Packet
Detector
Detector
48 MHz
Recover
Clock
Packet Bit Counter
Parallel to Serial Converter
Bit Unstuffing
USB Pattern Generator
NRZI ‘ NRZ
CRC16 Generator
NRZI Converter
Bit Stuffing
SysClk
(12 MHz)
Address Decoder
Serial to Parallel
SYNC Detector
Generator/Check
CRC5 & CRC16
PID Decoder
8
Converter
Data In
AT8xC51SND1C
8
Data Out
83
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