ATSAM3U4CA-CU Atmel, ATSAM3U4CA-CU Datasheet - Page 486

• 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

28.14.12 PMC Programmable Clock Register
Name:
Address:
Access:
This register can only be written if the WPEN bit is cleared in the
• CSS: Master Clock Source Selection
• PRES: Programmable Clock Prescaler
486
31
23
15
–
–
–
7
–
0
0
0
0
1
SAM3U Series
PMC_PCKx
0x400E0440
Read-write
0
0
0
0
1
1
1
1
30
22
14
–
–
–
6
CSS
0
0
1
1
x
PRES
29
21
13
–
–
–
5
PRES
0
0
1
1
0
0
1
1
0
1
0
1
x
28
20
12
–
–
–
4
Clock Source Selection
Slow Clock is selected
Main Clock is selected
PLLA Clock is selected
UPLL Clock is selected
Master Clock is selected
“PMC Write Protect Mode
27
19
11
–
–
–
–
3
0
1
0
1
0
1
0
1
26
18
10
–
–
–
2
Register”.
Programmable Clock
Selected clock
Selected clock divided by 2
Selected clock divided by 4
Selected clock divided by 8
Selected clock divided by 16
Selected clock divided by 32
Selected clock divided by 64
Reserved
CSS
25
17
–
–
–
9
1
6430D–ATARM–25-Mar-11
24
16
–
–
8
–
0