ATSAM3U2EA-CU Atmel, ATSAM3U2EA-CU Datasheet - Page 305

• 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

20. General Purpose Backup Registers (GPBR)
20.1
20.1.1
Table 20-1.
20.1.1.1
Register:
Addresses:
Access:
• GPBR_VALUEx: Value of GPBR x
6430D–ATARM–25-Mar-11
Offset
31
23
15
7
0x1c
0x0
Description
...
General Purpose Backup Registers (GPBR) User Interface
General Purpose Backup Register x
Register Mapping
Register
General Purpose Backup Register 0
...
General Purpose Backup Register 7
30
22
14
SYS_GPBRx
0x400E1290 [0], 0x400E1294 [1], 0x400E1298 [2], 0x400E129C [3]
6
Read-write
The System Controller embeds Eight general-purpose backup registers.
29
21
13
5
28
20
12
4
GPBR_VALUEx
GPBR_VALUEx
GPBR_VALUEx
GPBR_VALUEx
Name
...
SYS_GPBR0
SYS_GPBR7
27
19
11
3
26
18
10
2
SAM3U Series
25
17
Read-write
Read-write
9
1
Access
...
Reset
24
16
8
0
...
–
–
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