MB86290A Datasheet, PDF (81/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

6.7.4 Details of Display List Commands
All parameters belonging to their command are set in correlated registers.
The definition of each parameter is figured out in the section of each
command description.
Nop (Format1)
31
24 23
16 15
0
Nop
Reserved
Reserved
No operation
Interrupt (Format1)
31
24 23
16 15
0
Interrupt
Reserved
Reserved
Generates interrupt request to host CPU
Sync (Format9)
31
Sleep
24 23
Reserved
16 15
Reserved
4
0
flag
Suspends all subsequent display list operations until event specified in Flag
field detected
Flag:
Bit #
Bit field name
4
Reserved
3
Reserved
2
Reserved
1
Reserved
0
VBLANK
Bit0
VBLANK
VBLANK Synchronization
0 No operation
1 Wait for VSYNC detection
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