Artesyn MVME7100ET Single Board Computer Installation and Use (June 2014) - Manual (Page 77)

Functional Description
MVME7100ET Single Board Computer Installation and Use (6806800K87E) 77
4.9 DUART Interface
The MVME7100ET provides a front access asynchronous serial port interface using Serial Port
0 from the MC864xD DUART. The TTL-level signals SIN, SOUT, RTS and CTS from Serial Port 0
are routed through on-board RS-232 drivers and receivers to the mini DB-9 front panel
connector.
4.10 PCI-E Port 0
One 8x PCI-E port from the MC864xD processor is connected to a five port PEX8533 PCI-E
switch. Each downstream port from the PCI-E switch is connected to a PCI/PCI-X bridge. The
MVME7100ET implements four separate PCI/PCI-X bus segments.
PCI-X bus 1 connects to PMC site 1 using a PEX8114 bridge and is configured dynamically, with
onboard logic, to operate in 33/66 MHz PCI or 66/100 MHz PCI-X mode depending on the PMC
installed.
PCI-X bus 2 connects to PMC site 2 using a PEX8114 bridge and is configured dynamically, with
onboard logic, to operate in 33/66 MHz PCI or 66/100 MHz PCI-X mode depending on the PMC
installed.
PCI-X bus 3 connects to the Tsi148 using a PEX8114 bridge and is configured for 133 MHz PCI-
X mode.
4.10.1 VME Controller
The VMEbus interface for the MVME7100ET is provided by the Tsi148 VMEbus controller. The
Tsi148 provides the required VME, VME extensions, and 2eSST functions. TI SN74VMEH22501
transceivers are used to buffer the VME signals between the Tsi148 and the VME backplane.
Refer to the Tsi148 user's manual for additional details and/or programming information.