AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 180

• 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

180
AT8xC51SND2C/MP3B
Table 20-7.
BDRCON (S:92h) – Baud Rate Generator Control Register
Reset Value = XXX0 0000b
Table 20-8.
BRL (S:91h) – Baud Rate Generator Reload Register
Reset Value = 0000 0000b
Bit Number
Bit Number
BRL7
7 - 5
7 - 0
7
4
3
2
1
0
7
-
Mnemonic
Mnemonic
BDRCON Register
BRL Register
M0SRC
BRL7:0
RBCK
TBCK
BRL6
BRR
SPD
Bit
Bit
6
6
-
-
Description
Reserved
The value read from these bits are indeterminate. Do not set these bits.
Baud Rate Run Bit
Set to enable the baud rate generator.
Clear to disable the baud rate generator.
Transmission Baud Rate Selection Bit
Set to select the baud rate generator as transmission baud rate generator.
Clear to select the Timer 1 as transmission baud rate generator.
Reception Baud Rate Selection Bit
Set to select the baud rate generator as reception baud rate generator.
Clear to select the Timer 1 as reception baud rate generator.
Baud Rate Speed Bit
Set to select high speed baud rate generation.
Clear to select low speed baud rate generation.
Mode 0 Baud Rate Source Bit
Set to select the variable baud rate generator in Mode 0.
Clear to select fixed baud rate in Mode 0.
Description
Baud Rate Reload Value
BRL5
5
5
-
BRL4
BRR
4
4
TBCK
BRL3
3
3
RBCK
BRL2
2
2
BRL1
SPD
1
1
4341H–MP3–10/07
M0SRC
BRL0
0
0