ATMEGA128RZBV-8AU Atmel, ATMEGA128RZBV-8AU Datasheet - Page 137

• Manufacturer Part Number: ATMEGA128RZBV-8AU
• Description: MCU ATMEGA1280/AT86RF230 100TQFP
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RZBV-8AU

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 3dBm
• Sensitivity: -101dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 4kB EEPROM, 8kB RAM
• Antenna Connector: PCB, Surface Mount
• Package / Case: 100-TQFP
• Wireless Frequency: 2.4 GHz
• Interface Type: JTAG, SPI
• Output Power: 3 dBm
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK501 - ADAPTER KIT FOR 64PIN AVR MCUATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Current - Transmitting: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: ATmega128

16.2.1
2549M–AVR–09/10
Registers
Figure 16-1. 16-bit Timer/Counter Block Diagram
Note:
The Timer/Counter (TCNTn), Output Compare Registers (OCRnA/B/C), and Input Capture Reg-
ister (ICRn) are all 16-bit registers. Special procedures must be followed when accessing the 16-
bit registers. These procedures are described in the section
page
CPU access restrictions. Interrupt requests (shorten as Int.Req.) signals are all visible in the
Timer Interrupt Flag Register (TIFRn). All interrupts are individually masked with the Timer Inter-
rupt Mask Register (TIMSKn). TIFRn and TIMSKn are not shown in the figure since these
registers are shared by other timer units.
The Timer/Counter can be clocked internally, via the prescaler, or by an external clock source on
the Tn pin. The Clock Select logic block controls which clock source and edge the Timer/Counter
uses to increment (or decrement) its value. The Timer/Counter is inactive when no clock source
is selected. The output from the clock select logic is referred to as the timer clock (clk
The double buffered Output Compare Registers (OCRnA/B/C) are compared with the
Timer/Counter value at all time. The result of the compare can be used by the Waveform Gener-
ator to generate a PWM or variable frequency output on the Output Compare pin (OCnA/B/C).
138. The Timer/Counter Control Registers (TCCRnA/B/C) are 8-bit registers and have no
1. Refer to
Timer/Counter1 and 3 and 3 pin placement and description.
Figure 1-1 on page
Timer/Counter
OCRnB
TCCRnA
OCRnA
OCRnC
TCNTn
ICRn
=
=
=
ATmega640/1280/1281/2560/2561
Direction
Count
Clear
2,
Table 12-5 on page
Control Logic
TOP
=
TCCRnB
Values
BOTTOM
Fixed
TOP
(1)
ICFn (Int.Req.)
TCLK
Detector
Edge
=
0
79, and
“Accessing 16-bit Registers” on
OCFnA
(Int.Req.)
OCFnB
(Int.Req.)
OCFnC
(Int.Req.)
TOVn
(Int.Req.)
Clock Select
Generation
Generation
Generation
( From Prescaler )
Waveform
Waveform
Waveform
TCCRnC
Canceler
Detector
Noise
Edge
Table 12-11 on page 83
Comparator Ouput )
( From Analog
OCnA
OCnB
OCnC
ICPn
Tn
T
n
).
137
for