ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 484

• 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

31.9.8 Reset Register
31.9.9 Programming Enable Register
31.9.10 Programming Command Register
484
ATmega128RFA1
• Programming Enable Register
• Programming Command Register
• Flash Data Byte Register
The Reset Register is a Test Data Register used to reset the part during programming.
It is required to reset the part before entering Programming mode.
A high value in the Reset Register corresponds to pulling the external reset low. The
part is reset as long as there is a high value present in the Reset Register. Depending
on the Fuse settings for the clock options, the part will remain reset for a Reset Time-
out period (refer to
The output from this Data Register is not latched, so the reset will take place
immediately, as shown in
The Programming Enable Register is a 16-bit register. The content of this register is
compared to the programming enable signature, binary code 1010_0011_0111_0000.
When the content of the register is equal to the programming enable signature,
programming via the JTAG port is enabled. The register is reset to 0 on Power-on
Reset, and should always be reset when leaving Programming mode.
Figure 31-17. Programming Enable Register
The Programming Command Register is a 15-bit register. This register is used to
serially shift in programming commands, and to serially shift out the result of the
previous command, if any. The JTAG Programming Instruction Set is shown in
31-18 on
is illustrated in
page 485. The state sequence when shifting in the programming commands
Figure 31-19 on
TDO
TDI
D
A
T
A
"Clock Sources" on page
"Figure 29-2" on page
0xA370
page 488.
=
ClockDR & PROG_ENABLE
D
148) after releasing the Reset Register.
443.
Q
Programming Enable
8266A-MCU Wireless-12/09
Table