ATmega8515 Atmel Corporation, ATmega8515 Datasheet - Page 30

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ATmega8515

Manufacturer Part Number
ATmega8515
Description
Manufacturer
Atmel Corporation
Datasheets

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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30
ATmega8515(L)
SRAM address space is configured as one sector, the wait states are configured by the
SRW11 and SRW10 bits.
Table 2. Sector Limits with Different Settings of SRL2..0
• Bit 1 and Bit 6 MCUCR – SRW11, SRW10: Wait State Select Bits for Upper
The SRW11 and SRW10 bits control the number of wait states for the upper sector of
the External Memory address space, see Table 3.
• Bit 3..2 – SRW01, SRW00: Wait State Select Bits for Lower Sector
The SRW01 and SRW00 bits control the number of wait states for the lower sector of
the External Memory address space, see Table 3.
Table 3. Wait States
Note:
SRWn1
Sector
SRL2
0
0
1
1
0
0
0
0
1
1
1
1
1. n = 0 or 1 (lower/upper sector).
SRWn0
For further details of the timing and wait states of the External Memory Interface, see
Figure 13 to Figure 16 how the setting of the SRW bits affects the timing.
0
1
0
1
SRL1
0
0
1
1
0
0
1
1
(1)
Wait States
No wait states.
Wait one cycle during read/write strobe.
Wait two cycles during read/write strobe.
Wait two cycles during read/write and wait one cycle before driving out
new address.
SRL0
0
1
0
1
0
1
0
1
Sector Limits
Lower sector = N/A
Upper sector = 0x0260 - 0xFFFF
Lower sector = 0x0260 - 0x1FFF
Upper sector = 0x2000 - 0xFFFF
Lower sector = 0x0260 - 0x3FFF
Upper sector = 0x4000 - 0xFFFF
Lower sector = 0x0260 - 0x5FFF
Upper sector = 0x6000 - 0xFFFF
Lower sector = 0x0260 - 0x7FFF
Upper sector = 0x8000 - 0xFFFF
Lower sector = 0x0260 - 0x9FFF
Upper sector = 0xA000 - 0xFFFF
Lower sector = 0x0260 - 0xBFFF
Upper sector = 0xC000 - 0xFFFF
Lower sector = 0x0260 - 0xDFFF
Upper sector = 0xE000 - 0xFFFF
2512K–AVR–01/10

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