ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 266

• Manufacturer Part Number: ATMEGA128RFA1-ZU
• Description: IC AVR MCU 2.4GHZ XCEIVER 64QFN
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RFA1-ZU

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 3.5dBm
• Sensitivity: -100dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 12.5mA
• Current - Transmitting: 14.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 4kB EEPROM, 16kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Rf Ic Case Style: QFN
• No. Of Pins: 64
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 16 KB
• Interface Type: JTAG
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 38
• Number Of Timers: 6
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVR128RFA1-EK1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.11 Register Description
18.11.1 TCCR1A – Timer/Counter1 Control Register A
266
ATmega128RFA1
Figure 18-13 shows the same timing data, but with the prescaler enabled.
Figure 18-13. Timer/Counter Timing Diagram with Prescaler (f
• Bit 7:6 – COM1A1:0 - Compare Output Mode for Channel A
The COM1A1:0 bits control the output compare behavior of pin OC1A. If one or both of
the COM1A1:0 bits are written to one, the OC1A 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 OC1A pin must be set in order to enable the
output driver. When the OC1A is connected to the pin, the function of the COM1A1:0
bits is dependent of the WGM13:0 bits setting. The following table shows the
COM1A1:0 bit functionality when the WGM13:0 bits are set to a normal or a CTC mode
(non-PWM). For the other functionality refer to section "Modes of Operation".
Table 18-6 COM1A Register Bits
• Bit 5:4 – COM1B1:0 - Compare Output Mode for Channel B
Bit
NA ($80)
Read/Write
Initial Value
Register Bits
COM1A1:0
and ICF n
(PC and PFC PWM)
TOVn
(CTC and FPWM)
(Update at TOP)
TCNTn
TCNTn
as TOP)
OCRnx
(clk
clk
clk
I/O
(FPWM)
I/O
Tn
/8)
(if used
COM1A1 COM1A0 COM1B1 COM1B0 COM1C1 COM1C0 WGM11 WGM10
RW
7
0
RW
6
0
TOP - 1
TOP - 1
Old OCRnx Value
RW
5
0
Value
0
1
2
3
RW
4
0
TOP
TOP
Description
Normal port operation, OCnA/OCnB/OCnC
disconnected.
Toggle OCnA/OCnB/OCnC on Compare
Match.
Clear OCnA/OCnB/OCnC on Compare
Match (set output to low level).
Set OCnA/OCnB/OCnC on Compare Match
(set output to high level).
RW
3
0
RW
2
0
BOTTOM
TOP - 1
clk_I/O
New OCRnx Value
RW
1
0
/8)
8266A-MCU Wireless-12/09
RW
BOTTOM + 1
0
0
TOP - 2
TCCR1A