AT90PWM161 Atmel Corporation, AT90PWM161 Datasheet - Page 186

• Manufacturer Part Number: AT90PWM161
• Manufacturer: Atmel Corporation

Specifications of AT90PWM161

• Flash (kbytes): 16 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 20
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 3
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• Eeprom (bytes): 512
• Self Program Memory: YES
• 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: 1
• Output Compare Channels: 8
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

14.5
14.5.1
186
SPI registers
AT90PWM81
SPI Control Register – SPCR
Figure 14-3.
Figure 14-4.
• Bit 7 – SPIE: SPI Interrupt Enable
This bit causes the SPI interrupt to be executed if SPIF bit in the SPSR Register is set and the if the Global
Interrupt Enable bit in SREG is set.
• Bit 6 – SPE: SPI Enable
When the SPE bit is written to one, the SPI is enabled. This bit must be set to enable any SPI operations.
Bit
Read/Write
Initial Value
7
SPIE
R/W
0
SCK (CPOL = 0)
mode 0
SCK (CPOL = 1)
mode 2
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SCK (CPOL = 0)
mode 1
SCK (CPOL = 1)
mode 3
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SPI Transfer Format with CPHA = 0
SS
SPI Transfer Format with CPHA = 1
SS
MSB first (DORD = 0)
LSB first (DORD = 1)
MSB first (DORD = 0)
LSB first (DORD = 1)
6
SPE
R/W
0
MSB
LSB
5
DORD
R/W
0
MSB
LSB
Bit 6
Bit 1
4
MSTR
R/W
0
Bit 6
Bit 1
Bit 5
Bit 2
Bit 5
Bit 2
3
CPOL
R/W
0
Bit 4
Bit 3
Bit 4
Bit 3
CPHA
2
R/W
0
Bit 3
Bit 4
Bit 3
Bit 4
1
SPR1
R/W
0
Bit 2
Bit 5
Bit 2
Bit 5
Bit 1
Bit 6
0
SPR0
R/W
0
Bit 1
Bit 6
7734P–AVR–08/10
LSB
MSB
SPCR
LSB
MSB