ATmega16M1 Atmel Corporation, ATmega16M1 Datasheet - Page 159

• Manufacturer Part Number: ATmega16M1
• Manufacturer: Atmel Corporation

Specifications of ATmega16M1

• Flash (kbytes): 16 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: 27
• Ext Interrupts: 27
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Can: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 1
• 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: 14
• Input Capture Channels: 1
• Pwm Channels: 10
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

18.5
18.5.1
8209D–AVR–11/10
Register Description
MCUCR – MCU Control Register
Figure 18-3. SPI Transfer Format with CPHA = 0
Figure 18-4. SPI Transfer Format with CPHA = 1
Bit 7– SPIPS: SPI Pin Redirection.
Thanks to SPIPS (SPI Pin Select) in MCUCR Sfr, SPI pins can be redirected.
Note that programming port are always located on alternate SPI port.
Bit
Read/Write
Initial Value
• When the SPIPS bit is written to zero, the SPI signals are directed on pins MISO,MOSI, SCK
• When the SPIPS bit is written to one,the SPI signals are directed on alternate SPI pins,
and SS
MISO_A, MOSI_A, SCK_A and SS_A
SCK (CPOL = 0)
mode 1
SCK (CPOL = 1)
mode 3
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SS
SCK (CPOL = 0)
mode 0
SCK (CPOL = 1)
mode 2
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SS
MSB first (DORD = 0)
LSB first (DORD = 1)
MSB first (DORD = 0)
LSB first (DORD = 1)
SPIPS
R/W
7
0
R
6
–
0
MSB
LSB
MSB
LSB
Bit 6
Bit 1
R
5
–
0
Bit 6
Bit 1
Bit 5
Bit 2
PUD
R/W
4
0
Bit 5
Bit 2
ATmega16M1/32M1/64M1
Bit 4
Bit 3
Bit 4
Bit 3
R
3
–
0
Bit 3
Bit 4
Bit 3
Bit 4
R
2
–
0
Bit 2
Bit 5
Bit 2
Bit 5
IVSEL
R/W
Bit 1
Bit 6
1
0
Bit 1
Bit 6
LSB
MSB
IVCE
R/W
0
0
LSB
MSB
MCUCR
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