Home >> ATMEL ATmega1284 Datasheet

(Datasheet) ATmega1284

8-bit AVR Microcontrollers

No Preview Available !

ATmega1284 pdf
Bit 0 – C: Carry Flag
The Carry Flag C indicates a carry in an arithmetic or logic operation. See the Instruction Set Description
for detailed information.
8.4.
General Purpose Register File
The Register File is optimized for the AVR Enhanced RISC instruction set. In order to achieve the
required performance and flexibility, the following input/output schemes are supported by the Register
File:
One 8-bit output operand and one 8-bit result input
Two 8-bit output operands and one 8-bit result input
Two 8-bit output operands and one 16-bit result input
One 16-bit output operand and one 16-bit result input
Figure 8-2. AVR CPU General Purpose Working Registers
70
Addr.
Ge n e ra l
P urpos e
R0 0x00
R1 0x01
R2 0x02
R13 0x0D
R14 0x0E
R15 0x0F
Working
Re gis te rs
R16 0x10
R17 0x11
R26
0x1A
X-re gis te r Low Byte
R27
0x1B
X-re gis te r High Byte
R28
0x1C
Y-re gis te r Low Byte
R29
0x1D
Y-re gis te r High Byte
R30
0x1E
Z-re gis te r Low Byte
R31
0x1F
Z-re gis te r High Byte
Most of the instructions operating on the Register File have direct access to all registers, and most of
them are single cycle instructions. As shown in the figure, each register is also assigned a data memory
address, mapping them directly into the first 32 locations of the user Data Space. Although not being
physically implemented as SRAM locations, this memory organization provides great flexibility in access
of the registers, as the X-, Y-, and Z-pointer registers can be set to index any register in the file.
8.4.1.
The X-register, Y-register, and Z-register
The registers R26...R31 have some added functions to their general purpose usage. These registers are
16-bit address pointers for indirect addressing of the data space. The three indirect address registers X,
Y, and Z are defined as described in the figure.
Atmel ATmega1284 [DATASHEET]
Atmel-42718B-ATmega1284_Datasheet_Complete-08/2016
22
ATMEL
ATMEL


PDF Download ATmega1284 PDF File

PDF View ATmega1284 for Mobile




Related Start with ATmega128*

[ ATmega128 ATMEL Corporation ]     [ ATmega1280 ATMEL Corporation ]     [ ATmega1280V ATMEL ]     [ ATmega1281 ATMEL Corporation ]     [ ATmega1281V ATMEL ]     [ ATmega1284 ATMEL Corporation ]     [ ATmega1284 ATMEL ]     [ ATmega1284P ATMEL Corporation ]     [ ATmega1284P ATMEL ]     [ ATmega1284RFR2 ATMEL ]     [ ATmega128A ATMEL Corporation ]     [ ATmega128L ATMEL Corporation ]     [ ATmega128RFA1 Atmel Corporation ]     [ ATmega128RFR2 ATMEL ]     [ ATmega128 ATMEL Corporation ]     [ ATmega1280 ATMEL Corporation ]     [ ATmega1280V ATMEL ]     [ ATmega1281 ATMEL Corporation ]     [ ATmega1281V ATMEL ]     [ ATmega1284 ATMEL Corporation ]     [ ATmega1284 ATMEL ]     [ ATmega1284P ATMEL Corporation ]     [ ATmega1284P ATMEL ]     [ ATmega1284RFR2 ATMEL ]    


Searches related to ATmega1284 part

Find Chips CBC RS online RUTRONIK 24
Component Distributors NexGen Digital Richardson RFPD ICC
Beyond Components NAC PEI-Genesis Powell Electronics
TME Ameya 360 Power & Signal Datasheets360
Freelance Electronics Sager Electronics Terminals & Connectors TTI

0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z
@ 2014 :: DatasheetsPDF.com :: Semiconductors Datasheet Search & Download Site