Table 4-1 Dsp56309 Operating Modes; Bootstrap Program - Motorola DSP56309 User Manual

Core Configuration

Bootstrap Program

4.3 BOOTSTRAP PROGRAM
Bootstrap operating mode descriptions for the DSP56309 are listed in Table 4-1.
Mode MODD
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 1
9 1
A 1
B 1
C 1
D 1
E 1
F 1
The bootstrap program is factory-programmed in an internal, 192-word by 24-bit
bootstrap ROM located in program memory space at locations $FF0000Ð$FF00BF. The
bootstrap program can load any Program RAM segment from an external byte-wide
EPROM, the SCI, or the host port. The bootstrap program code is listed in
Appendix AÑBootstrap Programs.
4-4

Table 4-1 DSP56309 Operating Modes

MODC MODB MODA
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
DSP56309UM/D
Reset Vector
$C00000 Expanded mode: address
$C00000 is reflected as $00000
on Port A signals A0-A17
$FF0000 Reserved
$FF0000 Reserved
$FF0000 Reserved
$FF0000 Reserved
$FF0000 Reserved
$FF0000 Reserved
$FF0000 Reserved
$008000 Expanded mode
$FF0000 Boot from byte-wide memory
at $D00000
$FF0000 Boot through SCI
$FF0000 Reserved
$FF0000 HI08 boot in ISA mode
$FF0000 HI08 boot in HC11
non-multiplexed mode
$FF0000 HI08 boot in 8051
multiplexed bus mode
$FF0000 HI08 boot in MC68302 mode
Description
MOTOROLA