devsz
Module Instance Base Address Register Address
i_qspi_qspiregs 0xFF8D2000 0xFF8D2014

Size: 32

Offset: 0x14

Access: RW

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

dev_size_resv_fld

RO 0x0

bytespersubsector

RW 0x10

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

bytesperdevicepage

RW 0x100

numaddrbytes

RW 0x2

devsz Fields

Bit Name Description Access Reset
31:21 dev_size_resv_fld 


                     		

                     
                        RO
                     

                     
                        0x0
                     

                  


                  

                     20:16

                     
                        bytespersubsector
                     

                     
                        
 Number of bytes per Block. This is required by the controller for performing the write protection logic. The number of bytes per block must be a power of 2 number.


                     		

                     
                        RW
                     

                     
                        0x10
                     

                  


                  

                     15:4

                     
                        bytesperdevicepage
                     

                     
                        
 Number of bytes per device page. This is required by the controller for performing FLASH writes up to and across page boundaries. 


                     		

                     
                        RW
                     

                     
                        0x100
                     

                  


                  

                     3:0

                     
                        numaddrbytes
                     

                     
                        
Number of address bytes. A value of 0 indicates 1 byte.


                     		

                     
                        RW
                     

                     
                        0x2