ATmega8515 Atmel Corporation, ATmega8515 Datasheet - Page 67

• Manufacturer Part Number: ATmega8515
• 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

Alternate Functions Of Port B
2512K–AVR–01/10
Table 28. Overriding Signals for Alternate Functions in PA3..PA0
The Port B pins with alternate functions are shown in Table 29.
Table 29. Port B Pins Alternate Functions
The alternate pin configuration is as follows:
• SCK – Port B, Bit 7
SCK: Master Clock output, Slave Clock input pin for SPI channel. When the SPI is
enabled as a Slave, this pin is configured as an input regardless of the setting of DDB7.
When the SPI is enabled as a Master, the data direction of this pin is controlled by
DDB7. When the pin is forced by the SPI to be an input, the pull-up can still be con-
trolled by the PORTB7 bit.
• MISO – Port B, Bit 6
MISO: Master Data input, Slave Data output pin for SPI channel. When the SPI is
enabled as a Master, this pin is configured as an input regardless of the setting of
DDB6. When the SPI is enabled as a Slave, the data direction of this pin is controlled by
DDB6. When the pin is forced by the SPI to be an input, the pull-up can still be con-
trolled by the PORTB6 bit.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Port Pin
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PA3/AD3
SRE
~(WR | ADA) •
PortA3
SRE
WR | ADA
SRE
A3 • ADA |
D3 OUTPUT •
WR
0
0
D3 INPUT
–
SCK (SPI Bus Serial Clock)
MISO (SPI Bus Master Input/Slave Output)
MOSI (SPI Bus Master Output/Slave Input)
SS (SPI Slave Select Input)
T0 (Timer/Counter0 External Counter Input)
OC0 (Timer/Counter0 Output Compare Match Output)
Alternate Functions
AIN1 (Analog Comparator Negative Input)
AIN0 (Analog Comparator Positive Input)
T1 (Timer/Counter1 External Counter Input)
PA2/AD2
SRE
~(WR | ADA) •
PortA2
SRE
WR | ADA
SRE
A2 • ADA |
D2 OUTPUT •
WR
0
0
D2 INPUT
–
PA1/AD1
SRE
~(WR | ADA) •
PortA1
SRE
WR | ADA
SRE
A1 • ADA |
D1 OUTPUT •
WR
0
0
D1 INPUT
–
ATmega8515(L)
PA0/AD0
SRE
~(WR | ADA) •
PortA0
SRE
WR | ADA
SRE
A0 • ADA |
D0 OUTPUT •
WR
0
0
D0 INPUT
–
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