Atmel AT89C5132 Manuale Utente

4173ES–USB–09/07

AT89C5132 Block Diagram

Notes:

1. Alternate function of Port 3
2. Alternate function of Port 4
3. Alternate function of Port 1

8-BIT INTERNAL BUS

Clock and PLL

Unit

 

C51 (X2 CORE)

RAM

2304 Bytes

Flash

Interrupt

Handler Unit

FILT

X2

X1

MMC

Interface

I/O

MDAT

P0 - P5

10-bit A-to-D

Converter

V

SS

V

DD

Keyboard

Interface

KIN3:0

I

2

S/PCM

Audio Interface

AVSS

AV

DD

AIN1:0

Ports

INT0

INT1

MOSI

MISO

Timers 0/1

T1

T0

SPI/DataFlash

Controller

MCLK

MCMD

SCK

RST

AREF

DSEL

DCLK

SCLK

DOUT

64K Bytes

USB

Controller

D+

D-

UART

RXD

TXD

IDE

Interface

SS

Watchdog

Flash Boot

4K Bytes

UVSS

UV

DD

and

BRG

1

1

1

1

1

1

2

2

2

2

3

TWI

Controller

SCL SDA

1

1