AT89C51SND1C-ROTUL Atmel, AT89C51SND1C-ROTUL Datasheet - Page 106
AT89C51SND1C-ROTUL
Manufacturer Part Number
AT89C51SND1C-ROTUL
Description
IC 8051 MCU FLASH 64K MP3 80TQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT80C51SND1C-ROTIL.pdf
(213 pages)
Specifications of AT89C51SND1C-ROTUL
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
80-TQFP, 80-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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AT8xC51SND1C
Reset Value = 0000 0000b
Table 101. UEPDATX Register
UEPDATX (S:CFh) – USB Endpoint X FIFO Data Register (X = EPNUM set in UEPNUM)
Reset Value = XXh
Table 102. UBYCTX Register
UBYCTX (S:E2h) – USB Endpoint X Byte Count Register (X = EPNUM set in UEPNUM)
Number
Number
FDAT7
7 - 3
7 - 0
Bit
Bit
2
1
0
7
7
-
Mnemonic Description
Mnemonic Description
FDAT7:0
EP2INT
EP1INT
EP0INT
BYCT6
FDAT6
Bit
Bit
6
6
-
Reserved
The value read from these bits is always 0. Do not set these bits.
Endpoint 2 Interrupt Flag
This bit is set by hardware when an endpoint interrupt source has been detected
on the endpoint 2. The endpoint interrupt sources are in the UEPSTAX register
and can be: TXCMP, RXOUTB0, RXOUTB1, RXSETUP or STLCRC.
A USB interrupt is triggered when the EP2IE bit in the UEPIEN register is set.
This bit is cleared by hardware when all the endpoint interrupt sources are
cleared.
Endpoint 1 Interrupt Flag
This bit is set by hardware when an endpoint interrupt source has been detected
on the endpoint 1. The endpoint interrupt sources are in the UEPSTAX register
and can be: TXCMP, RXOUTB0, RXOUTB1, RXSETUP or STLCRC.
A USB interrupt is triggered when the EP1IE bit in the UEPIEN register is set.
This bit is cleared by hardware when all the endpoint interrupt sources are
cleared.
Endpoint 0 Interrupt Flag
This bit is set by hardware when an endpoint interrupt source has been detected
on the endpoint 0. The endpoint interrupt sources are in the UEPSTAX register
and can be: TXCMP, RXOUTB0, RXOUTB1, RXSETUP or STLCRC.
A USB interrupt is triggered when the EP0IE bit in the UEPIEN register is set.
This bit is cleared by hardware when all the endpoint interrupt sources are
cleared.
Endpoint X FIFO Data
Data Byte to be written to FIFO or data Byte to be read from the FIFO, for the
Endpoint X (see EPNUM).
BYCT5
FDAT5
5
5
FDAT4
BYCT4
4
4
BYCT3
FDAT3
3
3
BYCT2
FDAT2
2
2
BYCT1
FDAT1
1
1
4109L–8051–02/08
BYCT0
FDAT0
0
0
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