6-2
DSP56367
MOTOROLA
Core Configuration
Operating Mode Register (OMR)
6.2
OPERATING MODE REGISTER (OMR)
The contents of the Operating Mode Register (OMR) are shown in Table 6-1. Refer to the
DSP56300 24-Bit Digital Signal Processor Family Manual, Motorola publication
DSP56300FM/AD for a description of the OMR bits.
6.2.1
ASYNCHRONOUS BUS ARBITRATION ENABLE (ABE) -
BIT 13
The asynchronous bus arbitration mode is activated by setting the ABE bit in the OMR
register. Hardware reset clears the ABE bit.
6.2.2
ADDRESS ATTRIBUTE PRIORITY DISABLE (APD) - BIT 14
The Address Attribute Priority Disable (APD) bit is used to turn off the address attribute
priority mechanism. When this bit is set, more than one address attribute pin AA/RAS(2:0)
may be simultaneously asserted according to its AAR settings. The APD bit is cleared by
hardware reset.
Table 6-1 Operating Mode Register (OMR)
SCS
EOM
COM
23
22
21
20
19
18
17
16
15
14
13
12
11 10
9
8
7
6
5
4
3
2
1
0
PEN MSW 1: 0 SEN WRP EOV EUN XYS ATE APD ABE BRT TAS BE CDP1:0
MS
SD
EBD MD MC
MB
MA
PEN
- Patch Enable
ATE
- Address Tracing Enable
MS
- Master memory Switch Mode
MSW1
- Memory switch mode 1
APD
- Address Priority Disable
SD
- Stop Delay
MSW0
- Memory switch mode 0
ABE
- Asyn. Bus Arbitration
Enable
SEN
- Stack Extension Enable
BRT
- Bus Release Timing
EBD
- External Bus Disable
WRP
- Extended Stack Wrap Flag
TAS
- TA Synchronize Select
MD
- Operating Mode D
EOV
- Extended Stack Overflow
Flag
BE
- Burst Mode Enable
MC
- Operating Mode C
EUN
- Extended Stack Underflow
Flag
CDP1
- Core-Dma Priority 1
MB
- Operating Mode B
XYS
- Stack Extension Space
Select
CDP0
- Core-Dma Priority 0
MA
- Operating Mode A
- Reserved bit. Read as zero, should be written with zero for future compatibility
Summary of Contents for DSP56367
Page 16: ...xvi MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 22: ...xxii MOTOROLA List of Figures Figure Number Title Page Number ...
Page 26: ...xxvi MOTOROLA List of Tables Table Number Title Page Number ...
Page 148: ...4 6 DSP56367 MOTOROLA Design Considerations PLL Performance Issues ...
Page 248: ...9 30 DSP56367 MOTOROLA Serial Host Interface SHI Programming Considerations ...
Page 306: ...10 58 DSP56367 MOTOROLA Enhanced Serial Audio Interface ESAI ESAI Initialization Examples ...
Page 389: ...Bootstrap ROM Contents MOTOROLA DSP56367 A 15 end ...
Page 390: ...A 16 DSP56367 MOTOROLA Bootstrap ROM Contents ...
Page 432: ...C 8 DSP56367 MOTOROLA JTAG BSDL ...
Page 484: ...D 52 DSP56367 MOTOROLA Programmer s Reference ...
Page 490: ...E 6 DSP56367 MOTOROLA Power Consumption Benchmark ...
Page 516: ...F 26 DSP56367 MOTOROLA IBIS Model ...
Page 522: ...Index 6 MOTOROLA Index ...
Page 523: ......