ATSAM3U4CA-CU Atmel, ATSAM3U4CA-CU Datasheet - Page 830
![IC MCU 32BIT 256KB FLSH 100TFBGA](/photos/6/89/68968/313-100-cbga_sml.jpg)
ATSAM3U4CA-CU
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATSAM3U4CA-CU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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- Download datasheet (25Mb)
37.12 Write Protection Registers
830
SAM3U Series
To prevent any single software error that may corrupt HSMCI behavior, the entire HSMCI
address space from address offset 0x000 to 0x00FC can be write-protected by setting the
WPEN bit in the
If a write access to anywhere in the HSMCI address space from address offset 0x000 to 0x00FC
is detected, then the WPVS flag in the HSMCI Write Protect Status Register (HSMCI_WPSR) is
set and the field WPVSRC indicates in which register the write access has been attempted.
The WPVS flag is reset by writing the HSMCI Write Protect Mode Register (HSMCI_WPMR)
with the appropriate access key, WPKEY.
The protected registers are:
•
•
•
•
•
•
“HSMCI Mode Register” on page 833
“HSMCI Data Timeout Register” on page 835
“HSMCI SDCard/SDIO Register” on page 836
“HSMCI Completion Signal Timeout Register” on page 842
“HSMCI DMA Configuration Register” on page 856
“HSMCI Configuration Register” on page 857
“HSMCI Write Protect Mode Register”
(HSMCI_WPMR).
6430D–ATARM–25-Mar-11
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