ATmega8515 Atmel Corporation, ATmega8515 Datasheet - Page 180
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ATmega8515
Manufacturer Part Number
ATmega8515
Description
Manufacturer
Atmel Corporation
Specifications of ATmega8515
Flash (kbytes)
8 Kbytes
Pin Count
44
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
35
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
3
Input Capture Channels
1
Pwm Channels
3
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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Fuse bits
180
ATmega8515(L)
Table 82. Lock Bit Protection Modes
Notes:
The ATmega8515 has two Fuse bytes. Table 83 and Table 84 describe briefly the func-
tionality of all the fuses and how they are mapped into the fuse bytes. Note that the
Fuses are read as logical zero, “0”, if they are programmed.
Table 83. Fuse High Byte
Notes:
Fuse High Byte
S8515C
WDTON
SPIEN
CKOPT
EESAVE
BOOTSZ1
BOOTSZ0
BOOTRST
1
2
3
4
(1)(2)
Memory Lock bits
1. Program the Fuse bits before programming the Lock bits.
2. “1” means unprogrammed, “0” means programmed
1. See “AT90S4414/8515 Compatibility Mode” on page 4 for details.
2. The SPIEN Fuse is not accessible in serial programming mode.
3. The CKOPT Fuse functionality depends on the setting of the CKSEL bits. See “Clock
4. The default value of BOOTSZ1..0 results in maximum Boot Size. See Table 78 on
(3)
Sources” on page 35. for details.
page 177.
1
1
0
0
Bit no
7
6
5
4
3
2
1
0
1
0
0
1
Description
AT90S4414/8515 compatibility
mode
Watchdog Timer always on
Enable Serial Program and Data
Downloading
Oscillator options
EEPROM memory is preserved
through the Chip Erase
Select Boot Size (see Table 78 for
details)
Select Boot Size (see Table 78 for
details)
Select Reset Vector
Protection Type
No restrictions for SPM or LPM accessing the Boot Loader
section.
SPM is not allowed to write to the Boot Loader section.
SPM is not allowed to write to the Boot Loader section,
and LPM executing from the Application section is not
allowed to read from the Boot Loader section. If Interrupt
Vectors are placed in the Application section, interrupts
are disabled while executing from the Boot Loader section.
LPM executing from the Application section is not allowed
to read from the Boot Loader section. If Interrupt Vectors
are placed in the Application section, interrupts are
disabled while executing from the Boot Loader section.
(2)
(Continued)
1 (unprogrammed)
1 (unprogrammed)
Default Value
1 (unprogrammed)
0 (programmed, SPI prog.
enabled)
1 (unprogrammed)
1 (unprogrammed,
EEPROM not preserved)
0 (programmed)
0 (programmed)
2512K–AVR–01/10
(4)
(4)