AT32UC3B0512-A2UT Atmel, AT32UC3B0512-A2UT Datasheet - Page 197

• Manufacturer Part Number: AT32UC3B0512-A2UT
• Description: IC MCU AVR32 512K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B0512-A2UT

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 96K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Controller Family/series: AT32UC3B
• No. Of I/o's: 44
• Ram Memory Size: 96KB
• Cpu Speed: 60MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 18-3. SPI Transfer Format (NCPHA = 1, 8 bits per transfer)
Figure 18-4. SPI Transfer Format (NCPHA = 0, 8 bits per transfer)
32059K–03/2011
SPCK cycle (for reference)
SPCK cycle (for reference)
(from master)
(from slave)
(CPOL = 0)
(CPOL = 1)
(to slave)
(from master)
(from slave)
(CPOL = 0)
(CPOL = 1)
SPCK
SPCK
MOSI
MISO
(to slave)
NSS
SPCK
SPCK
MOSI
MISO
NSS
the NCPHA bit. These two parameters determine the edges of the clock signal on which data is
driven and sampled. Each of the two parameters has two possible states, resulting in four possi-
ble combinations that are incompatible with one another. Thus, a master/slave pair must use the
same parameter pair values to communicate. If multiple slaves are used and fixed in different
configurations, the master must reconfigure itself each time it needs to communicate with a dif-
ferent slave.
Table 18-2
Table 18-2.
Figure 18-3 on page 197
***
1
MSB
MSB
MSB
1
shows the four modes and corresponding parameter settings.
MSB
*** Not Defined, but normaly MSB of previous character received
SPI modes
2
6
6
2
SPI Mode
6
6
3
0
1
2
3
5
5
and
3
5
5
Figure 18-4 on page 197
4
4
4
4
4
4
5
3
3
5
3
3
6
2
2
6
2
2
show examples of data transfers.
7
1
1
CPOL
7
0
0
1
1
1
1
8
LSB
8
LSB
LSB
LSB
AT32UC3B
***
NCPHA
1
0
1
0
197