Digi NS9215 User Manual

Page 7

Advertising
background image

. . . . .

www.digiembedded.com

7

ICache and DCache behavior ..........................................................90

R2: Translation Table Base register.........................................................91

Register format..........................................................................91

R3:Domain Access Control register..........................................................91

Register format..........................................................................91
Access permissions and instructions .................................................91

R4 register ......................................................................................92
R5: Fault Status registers.....................................................................92

Access instructions......................................................................92
Register format..........................................................................92
Register bits .............................................................................92
Status and domain fields...............................................................93

R6: Fault Address register ....................................................................93

Access instructions......................................................................93

R7:Cache Operations register ................................................................94

Write instruction ........................................................................94
Cache functions .........................................................................94
Cache operation functions.............................................................95
Modified virtual address format (MVA) ..............................................96
Set/Way format .........................................................................96
Set/Way example .......................................................................96
Test and clean DCache instructions..................................................96
Test, clean, and invalidate DCache instruction ....................................97

R8:TLB Operations register...................................................................97

TLB operations ..........................................................................97
TLB operation instructions ............................................................97
Modified virtual address format (MVA) ..............................................98

R9: Cache Lockdown register ................................................................98

Cache ways...............................................................................98
Instruction or data lockdown register ...............................................99
Access instructions......................................................................99
Modifying the Cache Lockdown register.............................................99
Register format..........................................................................99
Cache Lockdown register L bits.......................................................99
Lockdown cache: Specific loading of addresses into a cache-way ............ 100
Cache unlock procedure ............................................................. 101

R10:TLB Lockdown register ................................................................ 101

Register format........................................................................ 101
P bit ..................................................................................... 101
Invalidate operation .................................................................. 101
Programming instructions............................................................ 102
Sample code sequence ............................................................... 102

R11 and R12 registers ....................................................................... 102
R13:Process ID register ..................................................................... 102

FCSE PID register...................................................................... 103

Advertising