AT89C51SND1C-7HTUL Atmel, AT89C51SND1C-7HTUL Datasheet - Page 101

• Manufacturer Part Number: AT89C51SND1C-7HTUL
• Description: IC MCU 64KB FLASH MEM 81-CBGA
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51SND1C-7HTUL

• 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: 81-CBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

4109L–8051–02/08
Reset Value = 0001 0000b
Table 95. UEPNUM Register
UEPNUM (S:C7h) – USB Endpoint Number
Reset Value = 0000 0000b
Table 96. UEPCONX Register
UEPCONX (S:D4h) – USB Endpoint X Control Register (X = EPNUM set in UEPNUM)
Number
Number
EPEN
7 - 6
2 - 1
7 - 2
1 - 0
Bit
Bit
5
4
3
0
7
7
-
EWUPCPU
Mnemonic Description
Mnemonic Description
EPNUM1:0
EEOFINT
ESOFINT
NAKIEN
ESPINT
Bit
Bit
6
6
-
-
-
-
Reserved
The value read from these bits is always 0. Do not set these bits.
Wake Up CPU Interrupt Enable Bit
Set to enable the Wake Up CPU interrupt.
Clear to disable the Wake Up CPU interrupt.
End Of Reset Interrupt Enable Bit
Set to enable the End Of Reset interrupt. This bit is set after reset.
Clear to disable End Of Reset interrupt.
Start Of Frame Interrupt Enable Bit
Set to enable the SOF interrupt.
Clear to disable the SOF interrupt.
Reserved
The value read from these bits is always 0. Do not set these bits.
Suspend Interrupt Enable Bit
Set to enable Suspend interrupt.
Clear to disable Suspend interrupt.
Reserved
The value read from these bits is always 0. Do not set these bits.
Endpoint Number Bits
Set this field with the number of the endpoint which should be accessed when
reading or writing to registers UEPSTAX, UEPDATX, UBYCTX or UEPCONX.
NAKOUT
5
5
-
NAKIN
4
4
-
DTGL
3
3
-
AT8xC51SND1C
EPDIR
2
2
-
EPTYPE1
EPNUM1
1
1
EPTYPE0
EPNUM0
0
0
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