ATMEGA1284PR212-MU Atmel, ATMEGA1284PR212-MU Datasheet - Page 18
ATMEGA1284PR212-MU
Manufacturer Part Number
ATMEGA1284PR212-MU
Description
BUNDLE ATMEGA1284P/RF212 QFN
Manufacturer
Atmel
Datasheet
1.ATMEGA1284PR231-AU.pdf
(380 pages)
Specifications of ATMEGA1284PR212-MU
Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, ISM
Data Interface
PCB, Surface Mount
Memory Size
128kB Flash, 4kB EEPROM, 16kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
44-QFN, 32-QFN
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
16 KB
Development Tools By Supplier
ATAVRRZ541, ATAVRRAVEN, ATAVRRZUSBSTICK, ATAVRISP2, ATAVRRZ201
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Power - Output
-
Operating Temperature
-
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
Details
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6.3.1
8059D–AVR–11/09
Data Memory Access Times
The 32 general purpose working registers, 64 I/O registers, 160 Extended I/O Registers and the
16K bytes of internal data SRAM in the ATmega1284P are all accessible through all these
addressing modes. The Register File is described in
10.
Figure 6-2.
This section describes the general access timing concepts for internal memory access. The
internal data SRAM access is performed in two clk
Figure 6-3.
Address
clk
Data Memory Map
On-chip Data SRAM Access Cycles
Data
Data
WR
CPU
RD
Compute Address
160 Ext I/O Reg.
64 I/O Registers
Data Memory
Internal SRAM
32 Registers
T1
Memory Access Instruction
(16K x 8)
Address valid
CPU
T2
”General Purpose Register File” on page
cycles as described in
$40FF
$0000 - $001F
$0100
$0020 - $005F
$0060 - $00FF
Next Instruction
ATmega1284P
T3
Figure
6-3.
18
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