ATSAM3U4CA-CU Atmel, ATSAM3U4CA-CU Datasheet - Page 155

• 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

13.17.2
13.17.2.1
13.17.2.2
13.17.2.3
13.17.2.4
13.17.2.5
6430D–ATARM–25-Mar-11
CPSID i
CPSID f
CPSIE i
CPSIE f
CPS
Syntax
Operation
Restrictions
Condition flags
Examples
; Disable interrupts and configurable fault handlers (set PRIMASK)
; Disable interrupts and all fault handlers (set FAULTMASK)
; Enable interrupts and configurable fault handlers (clear PRIMASK)
; Enable interrupts and fault handlers (clear FAULTMASK)
Change Processor State.
where:
effect
iflags
CPS changes the PRIMASK and FAULTMASK special register values. See
registers” on page 64
The restrictions are:
This instruction does not change the condition flags.
• use CPS only from privileged software, it has no effect if used in unprivileged software
• CPS cannot be conditional and so must not be used inside an IT block.
CPSeffect iflags
IE
ID
i
f
is one of:
Clears the special purpose register.
Sets the special purpose register.
is a sequence of one or more flags:
Set or clear PRIMASK.
Set or clear FAULTMASK.
for more information about these registers.
SAM3U Series
“Exception mask
155