46 PCIE-5565PIORC Reflective Memory Board
Table 3-41 PCI Core/Features Revision ID
PCIHREV: BAR0/1 Offset $74
Bits
Description
Read
Write
Value after
PCI Reset
7:0
PCI Core/Features Revision ID
. This value is read by the
RFM-5565 driver to determine the features of this board.
Yes
No
Current Rev#
Table 3-42 DMA Channel 0 Mode Register
DMAMODE0: BAR0/1 Offset $80
Bit
Description
Read
Write
Value after
PCI Reset
1:0
Local Bus Width.
An 11 indicates a 32-bit bus width.
Yes
No
11
6:2
Reserved
Yes
No
$00
7
Continuous Burst Enable.
A one (1) enables Continuous Burst
mode.
Yes
No
1
8
Local Burst Enable.
A one (1) indicates Local Bursting.
Yes
No
1
9
Scatter-Gather Mode.
Writing one (1) indicates DMA Scatter-
Gather mode is enabled. For Scatter-Gather mode, the DMA
descriptors are loaded from memory in PCI Address space.
Writing zero (0) indicates DMA Block mode is enabled.
Yes
Yes
0
10
Done Interrupt Enable.
A one (1) enables an interrupt when done. Yes
No
1
16:11
Reserved
Yes
No
$00
17
DMA Channel 0 Interrupt Select
. A one (1) routes the DMA
Channel 0 interrupt to the PCI bus interrupt.
Yes
No
1
31:18
Reserved
Yes
No
$00
Table 3-43 DMA Channel 0 PCI Address Register
DMAPADR0: BAR0/1 Offset $84
Bits
Description
Read
Write
Value after
PCI Reset
31:0
PCI Address Register.
Indicates from where in PCI
Memory space DMA transfers (read or write) start.
Yes
Yes
$0
Table 3-44 DMA Channel 0 Local Address Register
DMALADR0: BAR0/1 Offset $88
Bits
Description
Read
Write
Value after
PCI Reset
31:0
Local Address Register.
Indicates from where in Local
Memory space DMA transfers (read or write) start.
Yes
Yes
$0