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Bit Band Area and Bit Band Alias Area (2)

Bit Band Area and Bit Band Alias Area (2)

How are the addresses of the bit band area data and the bit band alias area assigned?
The address of the bit band alias is assigned in the word unit (1 word = 32 bit).

  • The word address of the bit band alias area, bit0, accesses each bit in the bit band area.
  • The word address in the bit band alias area is assigned with each address assigned to each bit in the bit band area.

The bit band area 0x40000000 is indicated as an example.
The 32 bits of the bit band area 0x40000000 are assigned 32 addresses in the bit band alias area 0x42000000 to 0x4200007C. 
Other bit band area addresses are also assigned the word addresses of the bit band alias area, by the same order.

Click here for an example of bit-by-bit allocation

Chapter 2 Arm® Cortex®-M3

Hardware Configuration
NVIC (Nested Vectored Interrupt Controller)
Main Core
Register Configuration
The Role of the Register
PC, LR
Stack Pointer
PUSH/POP to the Stack Pointer
Special Register
Operation Mode and Stack Pointer (1)
Operation Mode and Stack Pointer (2)
Exceptions (Reset, Interrupt, Fault, System Call)
The Role of NVIC
Tail Chain Control by NVIC
Memory Map
Memory Map for Arm® Cortex®-M3 Specifications
Memory Map of TMPM330: Example of TX03 Series
Vector Table (1)
Vector Table (2)
Bit Band Area and Bit Band Alias Area (1)

* Arm and Cortex are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

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