Xilinx ML410 User Manual page 58

Chapter 2: ML410 Embedded Development Platform
58
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generates all PCI clocks, the downstream PCI devices have no clock input prior to or
during FPGA configuration; therefore, PCI Reset should be deasserted after the PCI CLK
has stabilized. Please review the PCI Local Bus Specification, Revision 2.2 for more
information.
The onboard 33 MHz, 32-bit PCI bus is connected to fixed PCI devices that are part of the
ML410. These fixed PCI devices are as follows:
♦
Texas Instruments, TI2250, PCI-to-PCI bridge
♦
ALi, M1535D+, PCI South Bridge
These devices are described in the following sections as well in their data sheets on the
ML410 documentation CD.
In addition to the fixed PCI devices, there are four 33 MHz, 32-bit PCI slots available for
use. For more information on the PCI slot pinouts, refer to the PCI Local Bus Specification,
Revision 2.2 and the ML410 schematics.
♦
Two 3.3V keyed PCI add-in card slots (P5 and P3)
♦
Two 5V keyed PCI add-in card slots (P6 and P4)
Figure 2-17 shows the connectivity of the PCI bus and PCI devices. For more information
on the PCI slot pinouts, refer to the PCI Local Bus Specification, Revision 2.2 or review the
ML410 schematics.
Note: The 5V PCI slots differ from the 3.3V slots. See the Important Instructions sheet
(PN 0402395) packaged with the ML410 kit before using Universal PCI add-in cards with
ML410 platforms.
FPGA (U37)
PCI_P_AD24
IDSEL
PCI Bus
PCI_P_CLK5
PCI_P_CLK4
PCI_P_CLK0
PCI_P_CLK1
PCI_P_CLK3
Figure 2-17: PCI Bus and Device Connectivity
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PCI-to-PCI
3.3V 5.0V
Bridge (U32)
PCI_S_CLK0
PCI_S_AD18
PCI_S_CLK1
0xAC23 104C
PCI_S_AD19
PCI_P_AD25
IDSEL
PCI_BUS
TI2250
PCI_P_AD21
PCI_P_AD22
ALi South Bridge (U15)
IDSEL Dev ID Vend ID
PCI_P_AD17
Audio 0x5451 10B9
PCI_P_AD18
S. Bridge 0x1533 10B9
PCI_P_AD19
Modem 0x5457 10B9
PCI_P_AD26
USB#2 0x5237 10B9
PCI_P_AD27
IDE Bus 0x5229 10B9
PCI_P_AD31
USB#1 0x5237 10B9
PCI Bus
ML410 Embedded Development Platform
UG085 (v1.7.2) December 11, 2008
R
5.0V PCI Slot 6
IDSEL
PCI_BUS
5.0V PCI Slot 4
IDSEL
PCI_BUS
3.3V PCI Slot 5
IDSEL
PCI_BUS
3.3V PCI Slot 3
IDSEL
PCI_BUS
UG085_16_092106