2-38
MPC8240 Integrated Processor User’s Manual
Configuration Signals Sampled at Reset
Figure 2-5. Clocking Solution—Small Load Requirements
Figure 2-6. Clocking Solution—High Clock Fanout Required
2.4 Configuration Signals Sampled at Reset
Table 2-5 contains a description of the signals sampled for configuration at the negation of
the HRST_CTRL and HRST_CPU signals. Note that throughout this manual, the reset
configuration signals are described as being sampled at the negation of reset. However, the
DLL
PLL
OSC
PLL
Processor Core
Local Memory
66–100 MHz
Core Clk
PCI Clocks
20–66 MHz
Peripheral Logic
Clocks
sys_logic_clk
MPC8240
DLL
PLL
OSC
PLL
Processor Core
Local Memory
66.6, 75, 83.3, 100 MHz
Core Clk
PCI Clocks
20–66 MHz
Peripheral Logic
Clocks
sys_logic_clk
MPC8240
.
.
.
.
.
.
PCI_SYNC_IN
0
Delay
Buffer
Low
Skew
Buffer
OSC_IN
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 ...