Lines Matching +full:memory +full:- +full:mapped

37 .Bd -ragged -offset indent
48 .Bd -literal -offset indent
64 .Tn SCSI-Select
72 For systems that store non-volatile settings in a system specific manner
78 many chip-down motherboard configurations.
88 .Bd -ragged -offset indent
89 .Bl -column "aic7895CX" "MIPSX" "PCI/64X" "MaxSyncX" "MaxWidthX" "SCBsX" "2 3 4 5 6 7 8X"
106 .Bl -enum -compact
108 Multiplexed Twin Channel Device - One controller servicing two busses.
110 Multi-function Twin Channel Device - Two controllers on one chip.
112 Command Channel Secondary DMA Engine - Allows scatter gather list and
115 64 Byte SCB Support - SCSI CDB is embedded in the SCB to eliminate an extra DMA.
117 Block Move Instruction Support - Doubles the speed of certain sequencer
121 style Scatter Gather Engine - Improves S/G prefetch performance.
123 Queuing Registers - Allows queueing of new transactions without pausing the
126 Multiple Target IDs - Allows the controller to respond to selection as a
132 To allow PCI adapters to use memory mapped I/O if enabled:
134 .Cd options AHC_ALLOW_MEMIO=(0 -- disabled, 1 -- enabled)
135 .Bd -ragged -offset indent
136 Memory mapped I/O is more efficient than the alternative, programmed I/O.
139 sitting behind a PCI->PCI bridge, the BIOS may fail to properly initialize
140 the chip for memory mapped I/O. The typical symptom of this problem is a
141 system hang if memory mapped I/O is attempted.
151 .Bd -ragged -offset indent
164 .Bl -tag -width indent
167 (0 -- disabled, 1 -- enabled).
169 A hint to define whether memory mapped io is enabled or disabled for this
170 adapter, defaults to enabled (0 -- disabled, 1 -- enabled).
181 .Bl -bullet -compact
330 Many motherboards with on-board
341 the number of SCBs that can be stored in on-chip memory.
354 a concept similar to memory paging.
365 saved, via dma, to host memory, and the local SCB reused to start
389 sequencer-code assembler,
400 .Tn SCSI-Select