ATSAM3U4CA-CU Atmel, ATSAM3U4CA-CU Datasheet - Page 362

• 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

Figure 25-8. READ_MODE = 1: Data is sampled by SMC before the rising edge of NRD
25.10.2.2
Figure 25-9. READ_MODE = 0: Data is sampled by SMC before the rising edge of NCS
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362
SAM3U Series
SAM3U Series
Read is Controlled by NCS (READ_MODE = 0)
NBS0,NBS1,
A0, A1
NBS0,NBS1,
A0, A1
D[15:0]
D[15:0]
A[23:2]
A[23:2]
MCK
MCK
NRD
NRD
NCS
NCS
Figure 25-9
NCS signal and remains valid until the rising edge of NCS. Data must be sampled when NCS is
raised. In that case, the READ_MODE must be set to 0 (read is controlled by NCS): the SMC
internally samples the data on the rising edge of Master Clock that generates the rising edge of
NCS, whatever the programmed waveform of NRD may be.
shows the typical read cycle. The read data is valid t
t
t
PACC
PACC
Data Sampling
Data Sampling
PACC
after the falling edge of the
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11