ATSAM3U2EA-CU Atmel, ATSAM3U2EA-CU Datasheet - Page 608

• Manufacturer Part Number: ATSAM3U2EA-CU
• Description: IC MCU 32BIT 128KB FLSH 144LFBGA
• Manufacturer: Atmel
• Series: SAM3Ur

Specifications of ATSAM3U2EA-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: 96
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 36K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b, 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LFBGA
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 36 KB
• Interface Type: 4xUSART, 2xTWI, 5xSPI, Bus
• Maximum Clock Frequency: 96 MHz
• Number Of Programmable I/os: 96
• 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: Details

1 = Local loopback path enabled
LLB controls the local loopback on the data serializer for testing in Master Mode only. (MISO is internally connected on
MOSI.)
• PCS: Peripheral Chip Select
This field is only used if Fixed Peripheral Select is active (PS = 0).
If PCSDEC = 0:
If PCSDEC = 1:
• DLYBCS: Delay Between Chip Selects
This field defines the delay from NPCS inactive to the activation of another NPCS. The DLYBCS time guarantees non-over-
lapping chip selects and solves bus contentions in case of peripherals having long data float times.
If DLYBCS is less than or equal to six, six MCK periods will be inserted by default.
Otherwise, the following equation determines the delay:
608
608
PCS = xxx0
PCS = xx01
PCS = x011
PCS = 0111
PCS = 1111
(x = don’t care)
NPCS[3:0] output signals = PCS.
SAM3U Series
SAM3U Series
NPCS[3:0] = 1110
NPCS[3:0] = 1101
NPCS[3:0] = 0111
forbidden (no peripheral is selected)
NPCS[3:0] = 1011
Delay Between Chip Selects
=
DLYBCS
---------------------- -
MCK
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11