ATxmega192D3 Atmel Corporation, ATxmega192D3 Datasheet - Page 290
ATxmega192D3
Manufacturer Part Number
ATxmega192D3
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega192D3
Flash (kbytes)
192 Kbytes
Pin Count
64
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
50
Ext Interrupts
50
Usb Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
2
Uart
3
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
5
Output Compare Channels
18
Input Capture Channels
18
Pwm Channels
18
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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23.11.1
23.11.2
23.11.2.1
23.11.2.2
23.11.3
8210B–AVR–04/10
Enabling External Programming Interface
NVM Programming
NVM Commands
Addressing the NVM
NVM Busy
NVM programming from the PDI requires enabling, and this is one the following fashion.
When the NVMEN bit in the PDI STATUS register is set the NVM interface is active from the
PDI.
When the PDI NVM interface is enabled, all the memories in the device is memory-mapped in
the PDI address space. For the reminder of this section all references to reading and writing
data or program memory addresses from PDI, refer to the memory map as shown in
on page
byte addresses. When filling the Flash or EEPROM page buffers, only the least significant bits of
the address are used to determine locations within the page buffer. Still, the complete memory
mapped address for the Flash or EEPROM page is required to ensure correct address mapping.
During programming (page erase and page write) when the NVM is busy, the complete NVM is
blocked for reading.
The NVM commands that can be used for accessing the NVM memories from external program-
ming are listed in
programming.
For external programming, the Trigger for Action Triggered Commands is to set the CMDEX bit
in the NVM CTRLA register (CMDEX). The Read Triggered Commands are triggered by a direct
or indirect Load instruction (LDS or LD) from the PDI (PDI Read). The Write Triggered Com-
mands is triggered by a direct or indirect Store instruction (STS or ST) from the PDI (PDI Write).
Section 23.11.3.1 on page 292
algorithm for each NVM operation. The commands are protected by the Lock Bits, and if Read
and Write Lock is set, only the Chip Erase and Flash CRC commands are available.
1. Load the RESET register in the PDI with 0x59 - the Reset Signature.
2. Load the correct NVM key in the PDI.
3. Poll NVMEN in the PDI Status Register (PDI STATUS) until NVMEN is set.
289. The PDI is always using byte addressing, hence all memory addresses must be
Table
23-5. This is a super-set of the commands available for self-
through
Section 23.11.3.9 on page 293
explains in detail the
XMEGA D
Figure 23-4
290
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