Technical data

Programming Details
MVME4100 Single Board Computer Programmer’s Reference (6806800H19B)
54
Bill of Materials. Each option and the corresponding default setting are described in the
following table. Refer to the MPC8548E reference manual, listed in Appendix B, Related
Documentation, Manufacturers’ Documents on page 85 for additional details and/or
programming information.
Table 4-1 MPC8548E POR Configuration Settings
MPC8548E
Signal
Select
Option
Default
POR
Setting Description State of Bit vs. Function
PCI1_REQ64_L Fixed 0 PCI1-32
Configuration
0 PCI1/PCI-X interface is 64-bit
1 PCI1/PCI-X interface is 32-bit
PCI2_GNT3_L Resistor 0 PCI1_CLK 0 PCI1_CLK is used as the PCI1
clock
1 SYSCLK is used as the PCI
clock
PCI1_GNT1_L Resistor 0 PCI1 interface
I/O impedance
025 Ohm drivers
142 Ohm drivers
PCI1_GNT2_L Fixed 1 PCI arbiter
configuration
0 Disable on-chip PCI/PCI-X
arbiter
1 Enable on-chip PCI/PCI-X
arbiter
PCI1_GNT3_L Fixed 1 PCI debug
configuration
0 PCI debug enabled
1 PCI operates in normal mode
PCI1_GNT4_L PLD 0 PCI/PCI-X
configuration
0PCI-X mode
1PCI mode
EC_MDC Fixed 0 TSEC 1 and 2
width
configuration
0 TSEC 1 and 2 in reduced mode
(RTBI or RGMII)
1 TSEC 1 and 2 in standard
mode (TBI or GMII)