ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 451

• 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

30 Boot Loader Support – Read-While-Write Self-Programming
30.1 Features
30.2 Application and Boot Loader Flash Sections
30.2.1 Application Section
30.2.2 BLS – Boot Loader Section
8266B-MCU Wireless-03/11
The Boot Loader Support provides a real Read-While-Write Self-Programming
mechanism for downloading and uploading program code by the MCU itself. This
feature allows flexible application software updates controlled by the MCU using a
Flash-resident Boot Loader program. The Boot Loader program can use any available
data interface and associated protocol to read code and write that (program) code into
the Flash memory, or read the code from the program memory. The program code
within the Boot Loader section has the capability to write into the entire Flash, including
the Boot Loader memory. The Boot Loader can thus even modify itself (including
erasing) from the code if the feature is not needed anymore. The size of the Boot
Loader memory is configurable with fuses and the Boot Loader has two separate sets
of Boot Lock bits which can be set independently. This gives the user a unique flexibility
to select different levels of protection.
• Read-While-Write Self-Programming
• Flexible Boot Memory Size
• High Security (Separate Boot Lock Bits for a Flexible Protection)
• Separate Fuse to Select Reset Vector
• Optimized Page
• Code Efficient Algorithm
• Efficient Read-Modify-Write Support
Note:
The Flash memory is organized in two main sections: the Application section and the
Boot Loader section (see
configured by the BOOTSZ Fuses as shown in
on
different sets of Lock bits.
The Application section is the region of the Flash that is used for storing the application
code. The protection level for the Application section can be selected by the application
Boot Lock bits (Boot Lock bits 0, BLB0), see
section can never store any Boot Loader code since the SPM instruction is disabled
when executed from the Application section.
While the Application section is used for storing the application code, the Boot Loader
software must be located in the BLS. The SPM instruction can only initiate
programming when executed from the BLS. The SPM instruction can access the entire
Flash, including the BLS itself. The protection level for the Boot Loader section can be
selected by the Boot Loader Lock bits (Boot Lock bits 1, BLB1), see
465.
page 453. These two sections can have different level of protection since they have
1. A page is a section in the Flash consisting of several bytes (see
page
operation.
468) used during programming. The page organization does not affect normal
(1)
Size
Figure 30-2 on
page 453). The size of the different sections is
Table 31-2 on page
Table 30-7 on page 462
ATmega128RFA1
465. The Application
Table 31-2 on page
"Table 31-7" on
and
Figure 30-2
451