ATMEGA64M1-AU Atmel, ATMEGA64M1-AU Datasheet - Page 159

• Manufacturer Part Number: ATMEGA64M1-AU
• Description: IC MCU AVR 64K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64M1-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

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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