ADUC814BRUZ datasheet(3/72 Pages) AD

Part #	ADUC814BRUZ

Description	MicroConverter짰, Small Package 12-Bit ADC with Embedded Flash MCU

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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ADuC814

Rev. A | Page 3 of 72

Serial Peripheral Interface..........................................................44

MISO (Master In, Slave Out Data I/O Pin) .........................44

MOSI (Master Out, Slave In Pin)..........................................44

SCLOCK (Serial Clock I/O Pin) ...........................................44

SS (Slave Select Input Pin) .....................................................44

Using the SPI Interface...........................................................45

SPI Interface—Master Mode .................................................45

SPI Interface—Slave Mode ....................................................45

I2C Compatible Interface............................................................46

8051 Compatible On-Chip Peripherals....................................47

Parallel I/O Ports 1 and 3.......................................................47

Additional Digital Outputs Pins ...........................................47

Timers/Counters .........................................................................48

Timer/Counter 0 and 1 Data Registers ................................49

Timer/Counter 0 and 1 Operating Modes...............................50

Mode 0 (13-Bit Timer/Counter) ...........................................50

Mode 1 (16-Bit Timer/Counter) ...........................................50

Mode 2 (8-Bit Timer/Counter with Autoreload)................50

Mode 3 (Two 8-Bit Timer/Counters)...................................50

Timer/Counter 2 Data Registers...........................................51

Timer/Counter 2 Operating Modes .........................................52

16-Bit Autoreload Mode.........................................................52

16-Bit Capture Mode ..............................................................52

UART Serial Interface.................................................................53

SBUF .........................................................................................53

Mode 0: 8-Bit Shift Register Mode .......................................54

Mode 1: 8-Bit UART, Variable Baud Rate ............................54

Mode 2: 9-Bit UART with Fixed Baud Rate ........................55

Mode 3: 9-Bit UART with Variable Baud Rate....................55

UART Serial Port Baud Rate Generation ............................55

Timer 2 Generated Baud Rates .............................................56

Interrupt System..........................................................................57

Interrupt Priority ....................................................................59

Interrupt Vectors.....................................................................59

ADuC814 Hardware Design Considerations ..............................60

Clock Oscillator...........................................................................60

Power Supplies.............................................................................60

Power Consumption...................................................................60

Power-Saving Modes ..............................................................61

Power-On Reset ......................................................................61

Grounding and Board Layout Recommendations .............61

Other Hardware Considerations...............................................62

In-Circuit Serial Download Access ......................................62

Embedded Serial Port Debugger ..........................................62

Single-Pin Emulation Mode ..................................................63

Timing Specifications .....................................................................64

Outline Dimensions........................................................................70

Ordering Guide ...........................................................................71

REVISION HISTORY

12/03 – Data Sheet Changed from REV. 0 to REV. A

Added detailed description of product ........................... Universal

Changes to Specifications.................................................................4

Updated Outline Dimensions........................................................70

Changes to Ordering Guide...........................................................71

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