AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 130

• 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

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AT8xC51SND2C/MP3B
Table 16-15. UFNUMH Register
Reset Value = 00h
Table 16-16. USBCLK Register
Reset Value = 0000 0000b
Bit Number
Bit Number
7 - 3
7 - 2
1 - 0
2-0
7
5
4
3
7
-
-
Mnemonic
Mnemonic
FNUM10:8
USBCD1:0
CRCERR
UFNUMH (S:BBh, Read-only) – USB Frame Number High Register
CRCOK
USBCLK (S:EAh) – USB Clock Divider Register
Bit
Bit
6
6
-
-
-
-
-
Description
Reserved
The value read from these bits is always 0. Do not set these bits.
Frame Number CRC OK Bit
Set by hardware after a non corrupted Frame Number in Start of Frame Packet is
received.
Updated after every Start Of Frame packet reception.
Note: The Start Of Frame interrupt is generated just after the PID receipt.
Frame Number CRC Error Bit
Set by hardware after a corrupted Frame Number in Start of Frame Packet is received.
Updated after every Start Of Frame packet reception.
Note: The Start Of Frame interrupt is generated just after the PID receipt.
Reserved
The value read from this bits is always 0. Do not set this bit.
Frame Number
Upper 3 bits of the 11-bit Frame Number. It is provided in the last received SOF packet.
FNUM does not change if a corrupted SOF is received.
Description
Reserved
The value read from these bits is always 0. Do not set these bits.
USB Controller Clock Divider
2-bit divider for USB controller clock generation.
CRCOK
5
5
-
CRCERR
4
4
-
3
3
-
-
FNUM10
2
2
-
USBCD1
FNUM9
1
1
4341H–MP3–10/07
USBCD0
FNUM8
0
0