Adsp-Bf535 Processor On-Chip Boot Rom - Analog Devices VisualDSP++ 3.5 Manual

Blackfin Processor Booting

ADSP-BF535 Processor On-Chip Boot ROM

The on-chip boot ROM for the ADSP-BF535 processor does the follow-
ing (Figure 2-2).
ADSP-BF535 Processor
0xEF00 0000
On-Chip
Boot ROM
Figure 2-2. ADSP-BF535 Processors: On-Chip Boot ROM
1. Sets up Supervisor mode by exiting the
tine and jumping into the lowest priority interrupt (
2. Checks whether the
skip the entire boot sequence and jump to the start of L2 memory
(
0xF000 0000
checking bit 4 of the
ROM performs the full boot sequence. If bit 4 is set, the on-chip
boot ROM bypasses the full boot sequence and jumps to
. The register settings are shown in
0000
2-4
L2 Memory
(0xF000 0000)
2 nd Stage Loader
2 nd Stage Loader
or
or
Application
Application
Code
Code
was a software reset and if so, whether to
RESET
) for execution. The on-chip boot ROM does this by
. If bit 4 is not set, the on-chip boot
SYSCR
4-Byte Header (N) 0x0
2 nd Stage Loader
or
Application
Bytes
Code
PROM/Flash or SPI Device
interrupt service rou-
RESET
Figure 2-3.
VisualDSP++ Loader Manual
for 16-Bit Processors
N
).
IVG15
0xF000