What is the difference between Bank 0 and Bank 1 registers?
The registers in a system are divided into two banks, namely Bank 0 and Bank. These banks are distinguished based on the time at which they are more likely to be modified.
Bank 0 registers (User space registers)
Bank 0 registers are typically modified during the execution of user code, hence referred to as User space registers.
Bank 1 registers (Configuration space registers)
Bank 1 registers are typically modified during initialization, thus named Configuration space registers.
For instance, each digital block in the system is composed of seven registers, namely:
- Function Register
- Input Register
- Output Register
- DR0 Register
- DR1 Register
- DR2 Register, and
- CR0 Register.
Out of these seven registers, Function, Input, and Output registers are placed in Bank 1, while DR0, DR1, DR2, and CR0 registers are placed in Bank 0.
