Chapter 15. Debug Features
15-3
Address Attribute Signals
15.2.2 Memory Address Attribute Signal Timing
The memory address attribute signals have timing characteristics as shown in Figure 15-8
through Figure 15-16. These figures also show the relationship of MAA[0:2] with the MIV
signal. Note that the attribute signals are valid at the same time as the column address for
all DRAM accesses including single-beat, burst, 32- and 64-bit modes, page misses, page
hits and others. Note that for all ROM/Flash accesses the attribute signals are valid when
the address is valid.
15.2.3 PCI Address Attribute Signals
The PCI address attribute signals provide information about the source of the PCI operation
being performed by the MPC8240, and the encodings are defined in Table 15-4.
0
0
1
—
Reserved
0
1
0
—
Reserved
0
1
1
—
Reserved
1
0
0
write
PCI memory write
1
0
1
write
DMA channel 0 memory write
1
1
0
write
DMA channel 1 memory write
1
1
1
—
Reserved
Table 15-4. PCI Attribute Signal Encodings
PMAA0
PMAA1
PMAA2
PCI
Operation
Definition
0
0
0
read
Processor data load
0
0
1
read
Processor touch load
0
1
0
read
Processor instruction fetch
0
1
1
—
reserved
1
0
0
—
reserved
1
0
1
read
DMA channel 0 PCI read
1
1
0
read
DMA channel 1 PCI read
1
1
1
read
PCI address bus invalid
0
0
0
write
Processor data write
0
0
1
—
reserved
0
1
0
—
reserved
0
1
1
—
reserved
1
0
0
—
reserved
1
0
1
write
DMA channel 0 PCI write
Table 15-3. Memory Address Attribute Signal Encodings (Continued)
Summary of Contents for MPC8240
Page 1: ...MPC8240UM D Rev 1 1 2001 MPC8240 Integrated Processor User s Manual ...
Page 38: ...xviii MPC8240 Integrated Processor User s Manual TABLES Table Number Title Page Number ...
Page 48: ...xlviii MPC8240 Integrated Processor User s Manual Acronyms and Abbreviations ...
Page 312: ...6 94 MPC8240 Integrated Processor User s Manual ROM Flash Interface Operation ...
Page 348: ...7 36 MPC8240 Integrated Processor User s Manual PCI Host and Agent Modes ...
Page 372: ...8 24 MPC8240 Integrated Processor User s Manual DMA Register Descriptions ...
Page 394: ...9 22 MPC8240 Integrated Processor User s Manual I2O Interface ...
Page 412: ...10 18 MPC8240 Integrated Processor User s Manual Programming Guidelines ...
Page 454: ...12 14 MPC8240 Integrated Processor User s Manual Internal Arbitration ...
Page 466: ...13 12 MPC8240 Integrated Processor User s Manual Exception Latencies ...
Page 516: ...16 14 Watchpoint Trigger Applications ...
Page 538: ...B 16 MPC8240 Integrated Processor User s Manual Setting the Endian Mode of Operation ...
Page 546: ...C 8 MPC8240 Integrated Processor User s Manual ...
Page 640: ...INDEX Index 16 MPC8240 Integrated Processor User s Manual ...