Chapter 2
NI SPEEDY-33 Functional Description and Interface
2-4
ni.com
Memory Map
The DSP runs in microcomputer/bootloader mode on the NI SPEEDY-33.
The memory map for the NI SPEEDY-33 is shown in Figure 2-3.
Figure 2-3.
NI SPEEDY-33 Memory Map
Re
s
erved for Bootlo
a
der Oper
a
tion
s
0h
FFFh
Extern
a
l RAM (100
8
KB) 5 W
a
it
S
t
a
te
s
1000h
3
FFFFh
(Empty)
40000h
3
FFFFFh
Fl
as
h Memory (204
8
KB in
S
p
a
ce,
Byte-Wide, Lowe
s
t Byte) 7 W
a
it
S
t
a
te
s
400000h
47FFFFh
(Empty)
4
8
0000h
7FFFFFh
Intern
a
l RAM Block 2 (64 KB)
8
00000h
8
0
3
FFFh
Intern
a
l RAM Block
3
(64 KB)
8
04000h
8
07FFFh
Peripher
a
l B
us
Memory-M
a
pped Regi
s
ter
s
(24 KB Intern
a
l)
8
0
8
000h
8
097FFh
Intern
a
l RAM Block 0 (4 KB)
8
09
8
00h
8
09BFFh
Intern
a
l RAM Block 1 (4 KB)
8
09C00h
8
09FC0h
U
s
er Progr
a
m Interr
u
pt
a
nd Tr
a
p Br
a
nch T
ab
le
8
09FC1h
8
09FFFh
(Empty)
Bo
a
rd
S
t
a
t
us
/CTL, XXF
U
S
B Peripher
a
l
S
t
a
t
us
U
S
B Ho
s
t EVEN
U
S
B Ho
s
t ODD
S
witch Re
a
d/LED Write
8
0B000h
8
0B00
3
h
8
0B004h
8
0B005h
8
0B007h
Comp
a
ctFl
as
h Control/D
a
t
a
C00000h
C0000Fh
U
S
B Boot Are
a
FFF000h
FFFFFFh
