ATmega6490A Atmel Corporation, ATmega6490A Datasheet - Page 306

• Manufacturer Part Number: ATmega6490A
• Manufacturer: Atmel Corporation

Specifications of ATmega6490A

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 160
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

27.8.13.2
In
Table 27-9.
8284D–AVR–6/11
BOOTSZ1
Table 27-9
1
1
0
0
ATmega329A/329PA/3290A/3290PA/649A/649P/6490A/6490P
through
BOOTSZ0
Boot Size Configuration (ATmega329A/329PA/3290A/3290PA/649A/649P/6490A/6490P)
1
0
1
0
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
Table
Table 27-7.
Note:
Table 27-8.
Notes:
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
27-11, the parameters used in the description of the Self-Programming are given.
1024 words
2048 words
Boot Size
256 words
512 words
1. For details about these two section, see
1. Z15:Z14: always ignored
295
Z0: should be zero for all SPM commands, byte select for the LPM instruction.
See
Z-pointer during Self-Programming.
Read-While-Write Limit (ATmega169A/169PA)
Explanation of different variables used in
ping to the Z-pointer (ATmega169A/169PA)
and
PC[12:6]
”Addressing the Flash During Self-Programming” on page 299
PC[5:0]
12
5
”RWW – Read-While-Write Section” on page
Pages
16
32
4
8
Corresponding
Application
Flash Section
0x0000-0x3EFF
0x0000-0x3DFF
0x0000-0x3BFF
0x0000-0x37FF
Z-value
Z13:Z7
Z6:Z1
Z13
Z6
Most significant bit in the Program Counter.
(The Program Counter is 13 bits PC[12:0])
Most significant bit which is used to address the words
within one page (64 words in a page requires six bits PC
[5:0]).
Bit in Z-register that is mapped to PCMSB. Because Z0
is not used, the ZPCMSB equals PCMSB + 1.
Bit in Z-register that is mapped to PAGEMSB. Because
Z0 is not used, the ZPAGEMSB equals PAGEMSB + 1.
Program Counter page address: Page select, for Page
Erase and Page Write
Program Counter word address: Word select, for filling
temporary buffer (must be zero during Page Write
operation)
”NRWW – No Read-While-Write Section” on page
Boot Loader
Flash Section
0x3F00-0x3FFF
0x3E00-0x3FFF
0x3C00-0x3FFF
0x3800-0x3FFF
Pages
112
16
Figure 27-3 on page 300
(1)
295.
(1)
Description
End
Application
Section
0x3EFF
0x3DFF
0x3BFF
0x37FF
Address
0x0000 - 0x1BFF
0x1C00 - 0x1FFF
for details about the use of
(1)
Boot Reset
Address
(Start
Boot Loader
Section)
0x3F00
0x3E00
0x3C00
0x3800
and the map-
306