ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 489

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.14.15 PMC Status Register
Name:
Address:
Access:
• MOSCXTS: Main XTAL Oscillator Status
0 = Main XTAL oscillator is not stabilized.
1 = Main XTAL oscillator is stabilized.
• LOCKA: PLL A Lock Status
0 = PLL A is not locked
1 = PLL A is locked.
• MCKRDY: Master Clock Status
0 = Master Clock is not ready.
1 = Master Clock is ready.
• LOCKU: UTMI PLL Lock Status
0 = UTMI PLL is not locked.
1 = UTMI PLL is locked.
• OSCSELS: Slow Clock Oscillator Selection
0 = Internal slow clock RC oscillator is selected.
1 = External slow clock 32 kHz oscillator is selected.
• PCKRDYx: Programmable Clock Ready Status
0 = Programmable Clock x is not ready.
1 = Programmable Clock x is ready.
• MOSCSELS: Main Oscillator Selection Status
0 = Selection is in progress.
1 = Selection is done.
• MOSCRCS: Main On-Chip RC Oscillator Status
0 = Main on-chip RC oscillator is not stabilized.
1 = Main on-chip RC oscillator is stabilized.
6430D–ATARM–25-Mar-11
OSCSELS
31
23
15
–
–
–
7
PMC_SR
0x400E0468
Read-only
LOCKU
30
22
14
–
–
–
6
29
21
13
–
–
–
5
–
FOS
28
20
12
–
–
4
–
MCKRDY
CFDS
27
19
11
–
–
3
PCKRDY2
CFDEV
26
18
10
–
2
–
MOSCRCS
PCKRDY1
SAM3U Series
LOCKA
25
17
–
9
1
MOSCSELS
MOSCXTS
PCKRDY0
24
16
–
8
0
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