ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 198
ATSAM3U-EK
Manufacturer Part Number
ATSAM3U-EK
Description
KIT EVAL FOR AT91SAM3U CORTEX
Manufacturer
Atmel
Type
MCUr
Datasheets
1.ATSAM3U-EK.pdf
(2 pages)
2.ATSAM3U-EK.pdf
(61 pages)
3.ATSAM3U-EK.pdf
(1171 pages)
4.ATSAM3U-EK.pdf
(53 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3U-EK
Manufacturer:
Atmel
Quantity:
10
- ATSAM3U-EK PDF datasheet
- ATSAM3U-EK PDF datasheet #2
- ATSAM3U-EK PDF datasheet #3
- ATSAM3U-EK PDF datasheet #4
- Current page: 198 of 1171
- Download datasheet (25Mb)
13.20.11.1
Memory Management Fault Status Register
The flags in the MMFSR indicate the cause of memory access faults. The bit assignments are:
7
6
5
4
3
2
1
0
MMARVALID
Reserved
MSTKERR
Reserved
DACCVIOL
IACCVIOL
MUNSTKERR
• MMARVALID
Memory Management Fault Address Register (MMAR) valid flag:
0 = value in MMAR is not a valid fault address
1 = MMAR holds a valid fault address.
If a memory management fault occurs and is escalated to a hard fault because of priority, the hard fault handler must set
this bit to 0. This prevents problems on return to a stacked active memory management fault handler whose MMAR value
has been overwritten.
• MSTKERR
Memory manager fault on stacking for exception entry:
0 = no stacking fault
1 = stacking for an exception entry has caused one or more access violations.
When this bit is 1, the SP is still adjusted but the values in the context area on the stack might be incorrect. The processor
has not written a fault address to the MMAR.
• MUNSTKERR
Memory manager fault on unstacking for a return from exception:
0 = no unstacking fault
1 = unstack for an exception return has caused one or more access violations.
This fault is chained to the handler. This means that when this bit is 1, the original return stack is still present. The proces-
sor has not adjusted the SP from the failing return, and has not performed a new save. The processor has not written a
fault address to the MMAR.
• DACCVIOL
Data access violation flag:
0 = no data access violation fault
1 = the processor attempted a load or store at a location that does not permit the operation.
When this bit is 1, the PC value stacked for the exception return points to the faulting instruction. The processor has loaded
the MMAR with the address of the attempted access.
• IACCVIOL
Instruction access violation flag:
0 = no instruction access violation fault
1 = the processor attempted an instruction fetch from a location that does not permit execution.
This fault occurs on any access to an XN region, even when the MPU is disabled or not present.
When this bit is 1, the PC value stacked for the exception return points to the faulting instruction. The processor has not
written a fault address to the MMAR.
SAM3U Series
198
6430D–ATARM–25-Mar-11
Related parts for ATSAM3U-EK
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
AT91 ARM Thumb-based Microcontrollers
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: