ATmega48 Automotive Atmel Corporation, ATmega48 Automotive Datasheet - Page 277

• Manufacturer Part Number: ATmega48 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATmega48 Automotive

• Flash (kbytes): 4 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• 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: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 256
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 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

24.7.14
7530I–AVR–02/10
ATmega168 Boot Loader Parameters
Note:
In
ming are given.
Table 24-9.
Note:
Table 24-10. Read-While-Write Limit, ATmega168
For details about these two section, see
and
Table 24-11. Explanation of Different Variables used in
BOOTSZ1
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
Table 24-9
“RWW – Read-While-Write Section” on page 264
1
1
0
0
1. Z15:Z13: always ignored
The different BOOTSZ Fuse configurations are shown in
Z0: should be zero for all SPM commands, byte select for the LPM instruction.
See
Z-pointer during Self-Programming.
BOOTSZ0
through
Boot Size Configuration, ATmega168
Z-pointer, ATmega168
“Addressing the Flash During Self-Programming” on page 269
1
0
1
0
12
Table
Boot
Size
128
words
256
words
512
words
1024
words
24-11, the parameters used in the description of the self program-
Corresponding
Z-value
Pages
16
2
4
8
ATmega48/88/168 Automotive
(1)
“NRWW – No Read-While-Write Section” on page 264
Application
Flash
Section
0x0000 -
0x1F7F
0x0000 -
0x1EFF
0x0000 -
0x1DFF
0x0000 -
0x1BFF
Description
Most significant bit in the Program Counter. (The
Program Counter is 12 bits PC[11:0])
Figure 24-3
Boot
Loader
Flash
Section
0x1F80 -
0x1FFF
0x1F00 -
0x1FFF
0x1E00 -
0x1FFF
0x1C00 -
0x1FFF
Figure
Pages
112
16
24-2.
End
Application
Section
0x1F7F
0x1EFF
0x1DFF
0x1BFF
and the Mapping to the
for details about the use of
Address
0x0000 - 0x1BFF
0x1C00 - 0x1FFF
Boot Reset
Address
(Start Boot
Loader
Section)
0x1F80
0x1F00
0x1E00
0x1C00
277