ATSAM3U4CA-CU Atmel, ATSAM3U4CA-CU Datasheet - Page 591

• Manufacturer Part Number: ATSAM3U4CA-CU
• Description: IC MCU 32BIT 256KB FLSH 100TFBGA
• Manufacturer: Atmel
• Series: SAM3Ur

Specifications of ATSAM3U4CA-CU

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 96MHz
• Connectivity: EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 57
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 52K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 4x10b, 4x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFBGA
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 52 KB
• Interface Type: 3xUSART, TWI, 4xSPI, Bus
• Maximum Clock Frequency: 96 MHz
• Number Of Programmable I/os: 57
• Number Of Timers: 8
• Operating Supply Voltage: 1.62 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ATSAM3U-EK
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 32-4.
Figure 32-3. SPI Transfer Format (NCPHA = 1, 8 bits per transfer)
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
SPCK cycle (for reference)
SPI Mode
(from master)
(from slave)
(CPOL = 0)
(CPOL = 1)
(to slave)
0
1
2
3
SPCK
SPCK
MOSI
MISO
NSS
SPI Bus Protocol Mode
* Not defined, but normally MSB of previous character received.
CPOL
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 32-4
Figure 32-3
0
0
1
1
MSB
1
MSB
NCPHA
shows the four modes and corresponding parameter settings.
and
1
0
1
0
2
Figure 32-4
6
6
3
Shift SPCK Edge
5
5
show examples of data transfers.
Falling
Falling
Rising
Rising
4
4
4
5
3
3
Capture SPCK Edge
6
6
2
2
Falling
Falling
Rising
Rising
7
1
1
SAM3U Series
SAM3U Series
8
LSB
LSB
SPCK Inactive Level
High
High
Low
Low
*
591
591