Atmel MCU Evaluation Kit AT91SAM7X-EK AT91SAM7X-EK Data Sheet
Product codes
AT91SAM7X-EK
15
SAM7X Series [SUMMARY DATASHEET]
6120IS–ATARM–14-Nov-13
7.
Processor and Architecture
7.1
ARM7TDMI Processor
RISC processor based on ARMv4T Von Neumann architecture
Runs at up to 55 MHz, providing 0.9 MIPS/MHz
Two instruction sets
ARM high-performance 32-bit instruction set
Thumb high code density 16-bit instruction set
Three-stage pipeline architecture
Instruction Fetch (F)
Instruction
Decode (D)
Execute (E)
7.2
Debug and Test Features
Integrated embedded in-circuit emulator
Two watchpoint units
Test access port accessible through a JTAG protocol
Debug communication channel
Debug Unit
Two-pin UART
Debug communication channel interrupt handling
Chip ID Register
IEEE1149.1 JTAG Boundary-scan on all digital pins
7.3
Memory Controller
Programmable Bus Arbiter
Handles requests from the ARM7TDMI, the Ethernet MAC and the Peripheral DMA Controller
Address decoder provides selection signals for
Three internal 1 Mbyte memory areas
One 256 Mbyte embedded peripheral area
Abort Status Registers
Source, Type and all parameters of the access leading to an abort are saved
Facilitates debug by detection of bad pointers
Misalignment Detector
Alignment checking of all data accesses
Abort generation in case of misalignment
Remap Command
Remaps the SRAM in place of the embedded non-volatile memory
Allows handling of dynamic exception vectors