Matrox Solios eA, Установка и справочник по оборудованию, Страница: 101 / 196

PCIe/PCI/PCI-X interface 101
and an 83.3 MHz 32-bit QDRII controller, for data transfer rates of
1.33 Gbytes/sec and 1.33 Gbytes/sec (666 Mbyte/sec input and 666 Mbyte/sec
output), respectively.
By default, some acquisition memory is mapped onto the PCI bus so that you can
use a Host pointer to access this memory, or you can access it directly from another
PCI/PCI-X bus master; this memory is referred to as shared memory. To allocate
a buffer in shared memory, use the MIL-Lite function
MbufAlloc...() with
M_SHARED
. To increase or decrease the amount of shared memory, use the
MilConfig utility. If your application accesses multiple boards that have their
memory mapped onto the PCI bus, ensure that the total amount of memory
mapped onto the PCI bus does not exceed the maximum address space available
to your application.
PCIe/PCI/PCI-X interface
Matrox Solios uses PCI-X technology to communicate on-board. PCI-X is a
high-performance backwards-compatible enhancement to the conventional PCI
bus specification. To communicate with the Host, Matrox Solios XCL and XA
can transfer data using either the Host’s PCI or PCI-X bus, depending on the slot
used by the board. Matrox Solios eCL and eA can transfer data using the Host’s
PCIe bus.
On Matrox Solios XCL and XA, a standard PCI-X to PCI-X bridge handles the
PCI/PCI-X connection. On Matrox Solios eCL, eA, and GigE, a PCI-X to PCIe
bridge handles the PCIe connection.
Using the Host PCIe/PCI/PCI-X bus, Matrox Solios can copy data between its
acquisition memory, the Host, and any other memory mapped onto the
PCIe/PCI/PCI-X bus. The PCIe/PCI/PCI-X bus connects all Matrox Solios
components to the Host, and to peripherals such as a display board.
Under optimum conditions, Matrox Solios can exchange data with the Host at a
peak transfer rate of up to 1 Gbyte/sec. For Matrox Solios eCL, eA, and GigE,
these conditions include using the board in a x4 or x8 PCIe slot with at least 4
active lanes. For Matrox Solios eCL-B and eA Single, these conditions include
using the board in a x1 PCIe slot. For Matrox Solios XCL and XA, these conditions
include using the board in a 133 MHz PCI-X slot. If Matrox Solios XCL and XA