AT89C51SND1C-ROTIL ATMEL Corporation, AT89C51SND1C-ROTIL Datasheet - Page 11

• Manufacturer Part Number: AT89C51SND1C-ROTIL
• Description: Single-Chip Microcontroller with MP3 Decoder and Man-Machine Interface
• Manufacturer: ATMEL Corporation

Block Diagram
Figure 3. AT8xC51SND1C Block Diagram
4106F–8051–10/02
FILT
INT0
C51 (X2 CORE)
3
Note: 1
Clock and PLL
Handler Unit
X1
Interrupt
Unit
INT1
3
4
3
X2
Alternate function of Port 1
Alternate function of Port 3
Alternate function of Port 4
V
RST
DD
VSS
2304 Bytes
MP3 Decoder
ISP
RAM
U
V
Unit
DD
ALE
UVSS
Flash Boot
64K Bytes
4K Bytes
A
Flash
V
ROM
DOUT
DD
Audio Interface
AVSS
DCLK
I
2
S / PCM
10-bit A-to-D
AREF
10-bit ADC
Converter
8-BIT INTERNAL BUS
DSEL
or
AIN1:0
SCLK
Controller
TXD
D+
3
UART
USB
BRG
and
D-
RXD
3
MCLK
Timers 0/1
Watchdog
3
T0
Interface
MDAT
MMC
3
T1
4
SS
MCMD
SPI/DataFlash
MISO
4
Controller
AT8xC51SND1C
Keyboard
Interface
MOSI
KIN3:0
4
1
SCK
4
Controller
SCL SDA
Interface
1
TWI
Ports
P0-P5
IDE
I/O
1
11