XMC-6VLX
USER’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 31 - http://www.acromag.com
- 31 -
www.acromag.com
CDMA Source Address Register (Read/Write) - (BAR0 + 0x000A0018)
This register provides the source address for simple DMA transfers by AXI
CDMA.
Note if the QDR memory is the source the base address from which QDR
memory starts is 0x30000000.
If a location in system memory is the source address, it must be set with the
AXI aperture base address 0x01 the least significant 24-bits of the
system memory address.
In addition, the physical address of the location in system memory must be
set in the Address Translation Register which is described in the PCIe AXI-
Bridge Control section.
Table 3.13:
CDMA Source
Address Register
Bit(s)
FUNCTION
31-0
Source Address Register. This register is used by Simple DMA
operations as the starting read address for DMA data
transfers. The address value written can be at any byte offset.
Note:
The software application should only write to this
register when the AXI CDMA is Idle.
CDMA Destination Address Register (Read/Write) - (BAR0 + 0x000A0020)
This register provides the destination address for simple DMA transfers by
AXI CDMA.
Note if the QDR memory is the destination the base address from which QDR
memory starts is 0x30000000.
If a location in system memory is the destination address, it must be set with
the AXI aperture base address 0x01 the least significant 24-bits of
the system memory address.
In addition, the physical address of the location in system memory must be
set in the Address Translation Register which is described in the PCIe AXI-
Bridge Control section.
Table 3.14:
CDMA Destination
Address Register
Bit(s)
FUNCTION
31-0
Destination Address Register. This register is used by Simple
DMA operations as the starting write address for DMA data
transfers.
Note:
The software application should only write to this
register when the AXI CDMA is Idle.
