ATMEGA2561R212-MU Atmel, ATMEGA2561R212-MU Datasheet - Page 188
ATMEGA2561R212-MU
Manufacturer Part Number
ATMEGA2561R212-MU
Description
BUNDLE ATMEGA2561/RF212 QFN
Manufacturer
Atmel
Datasheet
1.ATMEGA640V-8CU.pdf
(444 pages)
Specifications of ATMEGA2561R212-MU
Frequency
800MHz, 900MHz
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, ISM
Data Interface
PCB, Surface Mount
Memory Size
256kB Flash, 4kB EEPROM, 8kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
64-QFN, 32-QFN
Processor Series
ATMEGA256x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
256 KB
Data Ram Size
8 KB
Development Tools By Supplier
ATAVRRZ541, ATAVRRAVEN, ATAVRRZUSBSTICK, ATAVRISP2, ATAVRRZ201
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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2549M–AVR–09/10
Table 19-4.
Note:
• Bits 5:4 – COM2B1:0: Compare Match Output B Mode
These bits control the Output Compare pin (OC2B) behavior. If one or both of the COM2B1:0
bits are set, the OC2B output overrides the normal port functionality of the I/O pin it is connected
to. However, note that the Data Direction Register (DDR) bit corresponding to the OC2B pin
must be set in order to enable the output driver.
When OC2B is connected to the pin, the function of the COM2B1:0 bits depends on the
WGM22:0 bit setting.
are set to a normal or CTC mode (non-PWM).
Table 19-5.
Table 19-6
mode.
Table 19-6.
Note:
COM2A1
COM2B1
COM2B1
0
0
1
1
0
0
1
1
0
0
1
1
1. A special case occurs when OCR2A equals TOP and COM2A1 is set. In this case, the Com-
1. A special case occurs when OCR2B equals TOP and COM2B1 is set. In this case, the Com-
pare Match is ignored, but the set or clear is done at TOP. See
page 179
pare Match is ignored, but the set or clear is done at BOTTOM. See
page 178
shows the COM2B1:0 bit functionality when the WGM22:0 bits are set to fast PWM
Compare Output Mode, Phase Correct PWM Mode
Compare Output Mode, non-PWM Mode
Compare Output Mode, Fast PWM Mode
COM2A0
COM2B0
COM2B0
for more details.
for more details.
0
1
0
1
0
1
0
1
0
1
0
1
Table 19-5
ATmega640/1280/1281/2560/2561
shows the COM2B1:0 bit functionality when the WGM22:0 bits
WGM22 = 0: Normal Port Operation, OC2A Disconnected.
Clear OC2B on Compare Match, set OC2B at BOTTOM
Set OC2B on Compare Match, clear OC2B at BOTTOM
Clear OC2A on Compare Match when down-counting.
Set OC2A on Compare Match when down-counting.
Clear OC2A on Compare Match when up-counting.
Set OC2A on Compare Match when up-counting.
WGM22 = 1: Toggle OC2A on Compare Match.
Normal port operation, OC2A disconnected.
Normal port operation, OC2B disconnected.
Normal port operation, OC2B disconnected.
Toggle OC2B on Compare Match.
Clear OC2B on Compare Match.
Set OC2B on Compare Match.
(non-inverting mode).
(inverting mode).
(1)
Description
Description
Description
Reserved.
(1)
“Phase Correct PWM Mode” on
“Fast PWM Mode” on
188
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