Analog Devices VisualDSP++ 3.5 Manual page 129

Table 5-2. Boot Modes: ADSP-2184 to ADSP-2189 DSPs (Cont'd)
Mode D Mode C Mode B
0 1
0 1
1 1
1 1
1
Considered as standard operating settings. Using these configurations allows easier design and
better memory management.
Table 5-3 lists DSPs that support Mode D operation (
Table 5-3. ADSP-218x DSPs Supporting Mode D Operation
ADSP-2184N
ADSP-2186M
ADSP-2187N
ADSP-2189M
VisualDSP++ 3.5 Loader Manual
for 16-Bit Processors
Mode A
Description
BDMA is used to load the first 32 program memory
0 0
words from the byte memory space. Program execu-
tion is held off until all 32 words have been loaded.
Chip is configured in Host mode.
pull-down.
IDMA is used to load any internal memory as desired.
0 1
Program execution is held off until the host writes to
internal program memory location 0. Chip is config-
ured in Host mode.
BDMA is used to load the first 32 program memory
0 0
words from byte memory space. Program execution is
held off until all 32 words have been loaded. Chip is
configured in Host mode;
down. (Note: Requires additional hardware.)
IDMA is used to load any internal memory as desired.
0 1
Program execution is held off until the host writes to
internal program memory location 0. The chip is con-
figured in Host mode.
pull-down.
ADSP-2185M
ADSP-2186M
ADSP-2188M
ADSP-2189N
ADSP-218x DSP Loader/Splitter
1
(Note: Requires additional hardware.)
has active pull-down.
/IACK
/IACK
/IACK
1
Mode D
ADSP-2185N
ADSP-2187L
ADSP-2188N
has active
/IACK
1
requires external pull
requires external
pin).
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