AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 205

• 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

23.2
4341H–MP3–10/07
Registers
Table 23-1.
Reset Value = 1111 1111b
Table 23-2.
KBCON (S:A3h) – Keyboard Control Register
Reset Value = 0000 1111b
Bit Number
Number
SDA
Bit
7:6
5:1
7 - 5
3 - 1
7
0
7
4
-
0
Bit Mnemonic
Mnemonic
SCL
AUXCON Register
AUXCON (S:90h) – Auxiliary Control Register
KBCON Register
KINM0
KINL0
6
KIN0
Bit
6
-
-
-
Description
Reserved
Do not set these bits.
Keyboard Input Level Bit
Set to enable a high level detection on the respective KIN0 input.
Clear to enable a low level detection on the respective KIN0 input.
Reserved
Do not reset these bits.
Keyboard Input Mask Bit
Set to prevent the KINF0 flag from generating a keyboard interrupt.
Clear to allow the KINF0 flag to generate a keyboard interrupt.
Description
TWI Lines
Refer to TWI section.
Audio DAC Control
Refer to Audio DAC section.
Keyboard Input Interrupt.
5
-
5
-
AUDCDOUT
KINL0
4
4
AUDCDIN
AT8xC51SND2C/MP3B
3
-
3
AUDCCLK
2
-
2
AUDCCS
1
-
1
KINM0
KIN0
0
0
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