Chapter 4. Configuration Registers
4-29
Processor Interface Configuration Registers
4.7 Processor Interface Configuration Registers
The processor interface configuration registers (PICRs) control the programmable
parameters of the peripheral bus interface to the processor core. There are two 32-bit
PICRs—PICR1 and PICR2. Figure 4-17 shows the bits of PICR1.
Figure 4-17. Processor Interface Configuration Register 1 (PICR1)—0xA8
Table 4-26 describes the PICR1 bit settings.
Table 4-26. Bit Settings for PICR1—0xA8
Bits
Name
Reset
Value
Description
31–24
addr<ab>
—
All 1s
Reserved
23–22
addr<aa>
—
00
00 Must be cleared to 0b00
21
—
0
Reserved
20
RCS0
x
ROM location (read only.) This bit indicates the state of the ROM
location (RCS0) configuration signal during reset.
0 ROM is located on PCI bus.
1 ROM is located on processor/memory data bus.
19
—
0
Reserved
11111111
0
0
0 0 0
0
0
1
0
31
24 23 22 21 20 19 18 17 16 15
13 12 11 10
9
8
7
6
5
4
3
2
1
0
Reserved
0b00
RCS0
PROC_TYPE
ADDRESS_MAP
FLASH_WR_EN
MCP_EN
CF_DPARK
ST_GATH_EN
LE_MODE
0b1
CF_APARK
Speculative PCI Reads
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 ...