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MPC8240 Integrated Processor User’s Manual
PCI Bus Transactions
Note that the MPC8240 must not issue PCI configuration transactions to itself (that is, for
PCI configuration transactions initiated by the MPC8240, its IDSEL input signal must not
be asserted).
For type 0 translations, the function number and register number fields are copied without
modification onto the AD[10:2] signals during the address phase. The AD[1:0] signals are
driven to 0b00 during the address phase for type 0 configuration cycles.
For systems implementing address map A on the MPC8240, there is an alternate method
for generating type 0 configuration cycles, called the direct access method. See
Section A.2, “Configuration Accesses Using Direct Method,” for more information.
Table 7-6. Type 0 Configuration—Device Number to IDSEL Translation
Device Number
IDSEL
Binary
Decimal
0b0_0000–0b0_1001
0–9
—
0b0_1010
10
AD31
0b0_1011
11
AD11
0b0_1100
12
AD12
0b0_1101
13
AD13
0b0_1110
14
AD14
0b0_1111
15
AD15
0b1_0000
16
AD16
0b1_0001
17
AD17
0b1_0010
18
AD18
0b1_0011
19
AD19
0b1_0100
20
AD20
0b1_0101
21
AD21
0b1_0110
22
AD22
0b1_0111
23
AD23
0b1_1000
24
AD24
0b1_1001
25
AD25
0b1_1010
26
AD26
0b1_1011
27
AD27
0b1_1100
28
AD28
0b1_1101
29
AD29
0b1_1110
30
AD30
0b1_1111
1
1
A device number of all 1s indicates a PCI special-cycle or
interrupt-acknowledge transaction.
31
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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 ...