ATmega168P Atmel Corporation, ATmega168P Datasheet - Page 287

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ATmega168P

Manufacturer Part Number
ATmega168P
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega168P

Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
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
Yes
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
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
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes

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27.8.14
In
Table 27-7.
Table 27-8.
For details about these two section, see
Write Section” on page 276
Table 27-9.
Note:
8025M–AVR–6/11
BOOTSZ1
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
Table 27-7
1
1
0
0
1. Z15:Z13: always ignored
ATmega88P Boot Loader Parameters
Z0: should be zero for all SPM commands, byte select for the LPM instruction.
See
Programming.
BOOTSZ0
through
Boot Size Configuration, ATmega88P
Read-While-Write Limit, ATmega88P
Explanation of Different Variables used in
”Addressing the Flash During Self-Programming” on page 280
1
0
1
0
Table
Boot
Size
128 words
256 words
512 words
1024 words
PC[11:5]
PC[4:0]
Note:
11
4
27-9, the parameters used in the description of the self programming are given.
The different BOOTSZ Fuse configurations are shown in
Pages
16
32
4
8
”NRWW – No Read-While-Write Section” on page 276
Corresponding
Z-value
Application
Flash
Section
0x000 - 0xF7F
0x000 - 0xEFF
0x000 - 0xDFF
0x000 - 0xBFF
Z12:Z6
Z5:Z1
Z12
Z5
(1)
Figure 27-3
Boot
Loader
Flash
Section
0xF80 - 0xFFF
0xF00 - 0xFFF
0xE00 - 0xFFF
0xC00 - 0xFFF
Description
Most significant bit in the Program Counter. (The Program Counter is
12 bits PC[11:0])
Most significant bit which is used to address the words within one
page (32 words in a page requires 5 bits PC [4:0]).
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)
Pages
96
32
and the Mapping to the Z-pointer, ATmega88P
for details about the use of Z-pointer during Self-
End
Application
Section
0xF7F
0xEFF
0xDFF
0xBFF
Address
0x000 - 0xBFF
0xC00 - 0xFFF
ATmega48P/88P/168P
Figure 27-2 on page
0xF80
0xF00
0xE00
0xC00
Boot Reset Address (Start Boot Loader
Section)
and
”RWW – Read-While-
278.
287

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