ATMEGA1284P-PU Atmel, ATMEGA1284P-PU Datasheet - Page 61

• Manufacturer Part Number: ATMEGA1284P-PU
• Description: MCU AVR 128K ISP FLASH 40-PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1284P-PU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 16 KB
• Interface Type: 2-Wire/SPI/USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRRAVEN, ATAVRRZUSBSTICK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Controller Family/series: AVR MEGA
• No. Of I/o's: 32
• Eeprom Memory Size: 4KB
• Ram Memory Size: 16KB
• Cpu Speed: 20MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8059D–AVR–11/09
When the BOOTRST Fuse is unprogrammed, the Boot section size set to 8K bytes and the
IVSEL bit in the MCUCR Register is set before any interrupts are enabled, the most typical and
general program setup for the Reset and Interrupt Vector Addresses is:
0x0018
0x001A
0x001C
0x001E
0x0020
0x0022
0x0024
0x0026
0x0028
0x002A
0x002C
0x002E
0x0030
0x0032
0x0034
0x0036
0x0038
0x003A
0x003C
0x003E
0x0040
0x0042
0x0044
;
0x0046
0x0047
0x0048
0x0049
0x004A
0x004B
...
Address Labels Code
0x00000 RESET: ldi
0x00001
0x00002
0x00003
0x00004
0x00005
;
.org 0x1F002
0x1F002
RESET:
...
out
ldi
out
sei
<instr>
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
ldi
out
ldi
out
sei
<instr>
...
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
EXT_INT0
xxx
TIM1_CAPT
TIM1_COMPA
TIM1_COMPB
TIM1_OVF
TIM0_COMPA
TIM0_COMPB
TIM0_OVF
SPI_STC
USART0_RXC
USART0_UDRE
USART0_TXC
ANA_COMP
ADC
EE_RDY
TWI
SPM_RDY
USART1_RXC
USART1_UDRE
USART1_TXC
TIM3_CAPT
TIM3_COMPA
TIM3_COMPB
TIM3_OVF
r16,
high(RAMEND)
SPH,r16
r16,
low(RAMEND)
SPL,r16
xxx
...
Comments
; Set Stack Pointer to top of RAM
; Enable interrupts
; IRQ0 Handler
; Timer1 Capture
; Timer1 CompareA
; Timer1 CompareB
; Timer1 Overflow
; Timer0 CompareA
; Timer0 CompareB
; Timer0 Overflow
; SPI Transfer Complete
; USART0 RX Complete
; USART0,UDR Empty
; USART0 TX Complete
; Analog Comparator
; ADC Conversion Complete
; EEPROM Ready
; 2-wire Serial
; SPM Ready
; USART1 RX Complete
; USART1,UDR Empty
; USART1 TX Complete
; Timer3 Capture
; Timer3 CompareA
; Timer3 CompareB
; Timer3 Overflow
; Main program start
; Set Stack Pointer to
top of RAM
; Enable interrupts
ATmega1284P
61