Motorola DSP56301 - Manual (Page 326)

Programming Sheets
B -14 DSP56301 User’s Manual
Figure B-2. Operating Mode Register (OMR)
Chip Operating Modes
MOD(D:A) Mode Reset Vector Description
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111 0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
$C00000
$FF0000
$FF0000
—
$FF0000
$FF0000
$FF0000
$FF0000
$008000
$FF0000
$FF0000
$FF0000
$FF0000
$FF0000
$FF0000
$FF0000
Expanded mode
Bootstrap from byte-wide memory
Bootstrap through SCI
Reserved
Bootstrap from ISA host
Bootstrap from HC11 host
Bootstrap from 8051 host
Bootstrap from MC68302 host
Expanded mode
Bootstrap from byte-wide memory
Bootstrap through SCI
Bootstrap through SCI
Bootstrap from ISA host
Bootstrap from HC11 host
Bootstrap from 8051 host
Bootstrap from MC68302 host
Application: Date:
Programmer:
Sheet 2 of 2
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
EBD MC MB MA
19 18 17 16 23 22 21 20
SD BRT TAS SEN CDP1 CDP0 WRP EOV EUN XYS BE MD
Core-DMA Priority
CDP(1:0) Core-DMA Priority
00
01
10
11 Core vs DMA Priority
DMA accesses > Core
DMA accesses = Core
DMA accesses < Core
*
0
*
0
*
0
*
0
Chip Operating Mode
Register (COM)
System Stack Control
Status Register (SCS) Extended Chip Operating
Mode Register (EOM)
Operating Mode Register (OMR) Read/Write
Reset = $00030X; X = latched from levels on Mode pins
Central Processor
* = Reserved, Program as 0
Burst Mode Enable
TA Synchronize Select
Address Trace Enable
Stack Extension XY Select
Extended Stack Underflow Flag
Extended Stack Overflow Flag
Extended Stack Wrap Flag
Memory Switch Mode
MS
External Bus Disable
Stop Delay
ATE APD ABE
Address Attribute Priority Disable
Asynchronous Bus Arbitration Enable
Bus Release Timing
0 = enable 1 = disable
0 = 128 K clocks 1 = 16 clocks
0 = disable 1 = enable
0 = disable 1 = enable
0 = not selected 1 = selected
0 = fast 1 = slow
0 = disable 1 = enable
0 = no wrap 1 = wrap (sticky bit)
0 = enable 1 = disable
0 = disable 1 = enable
0 = no 1 = overflow
0 = no 1 = underflow
0 = X memory 1 = Y memory
Stack Extension Enable
0 = disable 1 = enable