[UVM]UVM Register Defines

                               UVM Register Defines

       UVM register library has the defines declared in it. these are being used in the RAL model base classes, user can override these defines.

一、uvm_reg_defines are,

• `UVM_REG_ADDR_WIDTH
• `UVM_REG_DATA_WIDTH
• `UVM_REG_BYTENABLE_WIDTH
• `UVM_REG_CVR_WIDTH

1、UVM_REG_ADDR_WIDTH

• Maximum address width in bits
  Default value is 64
• Used to define the uvm_reg_addr_t type

2、UVM_REG_DATA_WIDTH

• Maximum data width in bits
  Default value is 64
• Used to define the uvm_reg_data_t type

3、UVM_REG_BYTENABLE_WIDTH

• Maximum number of byte enable bits
• Default value is one per byte in `UVM_REG_DATA_WIDTH
• Used to define the
  uvm_reg_byte_en_t type

4、UVM_REG_CVR_WIDTH

• Maximum number of bits in a uvm_reg_cvr_t coverage model set
• Default value is 32