Analog Devices Blackfin ADSP-BF537 Hardware Reference Manual page 1033

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DSP SENDS OUT

READ COMMAND*

*DSP SENDS OUT READ COMMAND (0x03) AND THEN TWO ADDRESS BYTES

(ADDR[15:8] FIRST AND THEN ADDR[7:0]).

Figure 19-19. SPI Master Mode Boot Sequence: Boot 10-Byte Header for

INIT Code DXE Count Block

Since the INIT code DXE count block is a 4-byte IGNORE block, the

on-chip boot ROM then issues the read command and sends out address

0x000E for the 10-byte header for block 1 of the INIT code DXE. After

this header is read in, the on-chip boot ROM knows where block 1 resides

in memory and how many bytes to boot into that location.

DSP SENDS OUT

READ COMMAND*

*DSP SENDS OUT READ COMMAND (0x03) AND THEN TWO ADDRESS BYTES (ADDR[15:8] EQUALS 0x0,

ADDR[7:0] EQUALS 0x0E).

Figure 19-20. SPI Master Mode Boot Sequence: Boot 10-Byte Header for

Block 1 of INIT Code DXE

ADSP-BF537 Blackfin Processor Hardware Reference

10-BYTE HEADER FOR INIT CODE DXE COUNT BLOCK

10-BYTE HEADER FOR BLOCK 1 OF INIT CODE DXE

System Reset and Booting