CA91L8260B Datasheet, PDF (311/439 Pages) Integrated Device Technology – PowerSpan II™ User Manual

12. Register Descriptions
311
12.5.37
DMA x Transfer Control Register
This register is used to specify parameters for channel DMAx. It is programmed directly for direct
mode DMA or programmed by the Linked-list when loading the command packet.
Writing to this register while the DMA is active has no effect. While the DMA is active, this register
provides status information on the progress of the transfer.
Register Name: DMAx_TCR
Register Offset: 0x314, 0x344, 0x374, 0x3A4
PCI
Bits
31-24
23-16
15-08
07-00
SRC_PORT
Function
DST_PORT
BC
BC
BC
END
PB
Bits
0
0-7
8-15
16-23
24-31
Name
SRC_PORT
[1:0]
DST_PORT
[1:0]
Type
R/W
R/W
Reset
By
G_RST
G_RST
Reset
State
0
0
Function
Source Port for DMA transfer
00 = PCI-1
01 = PCI-2
10 = PB
11 = reserved
Single PCI PowerSpan II:
00 = PCI-1
10 = PB
01, 11 = reserved
Destination Port for DMA transfer
00 = PCI-1
01 = PCI-2
10 = PB
11 = reserved
Single PCI PowerSpan II:
00 = PCI-1
10 = PB
01, 11 = reserved
Integrated Device Technology
www.idt.com
PowerSpan II User Manual
80A1010_MA001_09