Motorola MVME2400 Series Installation And User Manual page 10

CHAPTER 2 Operating Instructions
Introduction ............................................................................................................... 2-1
Applying Power ......................................................................................................... 2-1
MVME2400x............................................................................................................. 2-3
Switches.............................................................................................................. 2-3
ABT (S1) ..................................................................................................... 2-3
RST (S2)...................................................................................................... 2-3
Status Indicators ................................................................................................. 2-4
BFL (DS1)................................................................................................... 2-4
CPU (DS2) .................................................................................................. 2-4
PMC2 (DS3)................................................................................................ 2-4
PMC1 (DS4)................................................................................................ 2-4
10/100 BASET Port............................................................................................ 2-4
DEBUG Port....................................................................................................... 2-5
PMC Slots........................................................................................................... 2-7
PCI MEZZANINE CARD (PMC Slot 1).................................................... 2-7
PCI MEZZANINE CARD (PMC Slot 2).................................................... 2-7
PMCspan ................................................................................................................... 2-8
CHAPTER 3 Functional Description
Introduction ............................................................................................................... 3-1
Features...................................................................................................................... 3-1
General Description ................................................................................................... 3-3
Block Diagram........................................................................................................... 3-3
MPC750 Processor ............................................................................................. 3-3
L2 Cache ..................................................................................................... 3-5
Hawk System Memory Controller (SMC)/PCI Host Bridge (PHB) ASIC ........ 3-6
PCI Bus Latency ......................................................................................... 3-7
PPC Bus Latency......................................................................................... 3-9
Assumptions .............................................................................................. 3-11
Clock Ratios and Operating Frequencies .................................................. 3-12
PPC60x Originated.................................................................................... 3-12
PCI Originated .......................................................................................... 3-13
SDRAM Memory ............................................................................................. 3-13
SDRAM Latency....................................................................................... 3-14
Flash Memory................................................................................................... 3-18
ROM/Flash Performance .......................................................................... 3-18
Ethernet Interface ............................................................................................. 3-21
PCI Mezzanine Card (PMC) Interface ............................................................. 3-22
PMC Slot 1 (Single-Width PMC) ............................................................. 3-22
PMC Slot 2 (Single-Width PMC) ............................................................. 3-23
PMC Slots 1 and 2 (Double-Width PMC) ................................................ 3-23
PCI Expansion........................................................................................... 3-23
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