Motorola MVME2401-1 Installation And Use Manual page 11

Interrupt Controller (MPIC)..............................................................................3-28
Programmable Timers.......................................................................................3-28
Interval Timers ..........................................................................................3-28
16/32-Bit Timers........................................................................................3-29
CHAPTER 4 Programming the MVME240x
Introduction................................................................................................................4-1
Memory Maps ............................................................................................................4-1
Processor Bus Memory Map...............................................................................4-2
Default Processor Memory Map..................................................................4-2
PCI Local Bus Memory Map..............................................................................4-3
VMEbus Memory Map .......................................................................................4-3
Programming Considerations.....................................................................................4-4
PCI Arbitration ...................................................................................................4-4
Interrupt Handling...............................................................................................4-6
DMA Channels ...................................................................................................4-8
Sources of Reset..................................................................................................4-8
Endian Issues ....................................................................................................4-10
Processor/Memory Domain .......................................................................4-10
PCI Domain ...............................................................................................4-10
VMEbus Domain .......................................................................................4-11
CHAPTER 5 PPCBug
PPCBug Overview .....................................................................................................5-1
PPCBug Basics ..........................................................................................................5-1
Memory Requirements .......................................................................................5-3
PPCBug Implementation ....................................................................................5-3
MPU, Hardware, and Firmware Initialization ...........................................................5-3
Using PPCBug ...........................................................................................................5-5
Debugger Commands .........................................................................................5-6
Diagnostic Tests ................................................................................................5-10
CHAPTER 6 Modifying the Environment
Overview....................................................................................................................6-1
CNFG - Configure Board Information Block ............................................................6-2
ENV - Set Environment .............................................................................................6-3
Configuring the PPCBug Parameters .................................................................6-3
Configuring the VMEbus Interface ..................................................................6-13
xi