6-4
MPC8240 Integrated Processor User’s Manual
Memory Interface Signal Summary
SDMA[12:0]
SDRAM address 12–0
See Table 6-2, “Memory
Address Signal
Mappings”
13
O
SDBA[1:0]
SDRAM bank select 1–0
2
O
MDH[0:31]
Data bus high
—
32
I/O
MDL[0:31]
MDL[0]
1
Data bus low
—
32
I/O
PAR[0:7]
Data parity 0–7
AR[19:12]
8
I/O
AR[19:12]
ROM address 19–12
PAR[0:7]
8
O
CKE
1
SDRAM clock enable
—
1
O
SDRAS
SDRAM row address strobe
—
1
O
SDCAS
SDRAM column address strobe
—
1
O
RCS0
1
ROM or bank 0 select
—
1
O
RCS1
ROM or bank 1select
—
1
O
FOE
1
Flash output enable
—
1
O
AS
1
Address strobe for Port X
—
1
O
1
The MPC8240 samples these signals at the negation of HRST_CTRL to determine the
reset configuration. After they are sampled, they assume their normal functions. See
Section 2.4, “Configuration Signals Sampled at Reset,” for more information about their
function during reset.
Table 6-1. Memory Interface Signal Summary (Continued)
Signal Name
Signal Name
Alternate Function
Pins
I/O
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 ...