ATmega1284P Atmel Corporation, ATmega1284P Datasheet - Page 579
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ATmega1284P
Manufacturer Part Number
ATmega1284P
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1284P
Flash (kbytes)
128 Kbytes
Pin Count
44
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
16
Eeprom (bytes)
4096
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Company
Part Number
Manufacturer
Quantity
Price
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Manufacturer:
ATMEL
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Part Number:
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Manufacturer:
PEREGRIN
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Part Number:
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Manufacturer:
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Quantity:
20 000
Company:
Part Number:
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Manufacturer:
FREESCALE
Quantity:
593
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Part Number:
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Manufacturer:
LUCENT
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32
Part Number:
ATmega1284PV-10MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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8272C–AVR–06/11
18 SPI – Serial Peripheral Interface ......................................................... 164
19 USART ................................................................................................... 174
20 USART in SPI Mode ............................................................................. 201
21 Two-wire Serial Interface ..................................................................... 210
17.6Compare Match Output Unit ................................................................................146
17.7Modes of Operation .............................................................................................147
17.8Timer/Counter Timing Diagrams .........................................................................151
17.9Asynchronous Operation of Timer/Counter2 .......................................................153
17.10Timer/Counter Prescaler ...................................................................................155
17.11Register Description ..........................................................................................156
18.1Features ..............................................................................................................164
18.2Overview .............................................................................................................164
18.3SS Pin Functionality ............................................................................................169
18.4Data Modes .........................................................................................................169
18.5Register Description ............................................................................................171
19.1Features ..............................................................................................................174
19.2USART1 and USART0 ........................................................................................174
19.3Overview .............................................................................................................174
19.4Clock Generation .................................................................................................175
19.5Frame Formats ....................................................................................................178
19.6USART Initialization ............................................................................................179
19.7Data Transmission – The USART Transmitter ....................................................180
19.8Data Reception – The USART Receiver .............................................................183
19.9Asynchronous Data Reception ............................................................................187
19.10Multi-processor Communication Mode ..............................................................190
19.11Register Description ..........................................................................................192
19.12Examples of Baud Rate Setting ........................................................................197
20.1Features ..............................................................................................................201
20.2Overview .............................................................................................................201
20.3Clock Generation .................................................................................................201
20.4SPI Data Modes and Timing ...............................................................................202
20.5Frame Formats ....................................................................................................202
20.6Data Transfer ......................................................................................................204
20.7AVR USART MSPIM vs. AVR SPI ......................................................................206
20.8Register Description ............................................................................................207
ATmega164A/PA/324A/PA/644A/PA/1284/P
iv
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