Analog Devices ADSP-21261 SHARC Hardware Reference Manual page 617

shifts to internal program memory during the load of the 256-instruction
word kernel.
The following example shows a 48-bit instructions executed.
[0x80000] 0x112233445566
[0x80001] 0x7788AABBCCDD
32
MOSI
Figure 15-11. 8-Bit SPI Host Packing
The 8-bit SPI host packs or prearranges the data as:
SPI word 1 = 0x66SPI word 2 = 0x55
SPI word 3 = 0x44SPI word 4 = 0x33
SPI word 5 = 0x22SPI word 6 = 0x11
SPI word 7 = 0xDDSPI word 8 = 0xCC
ADSP-2126x SHARC Processor Hardware Reference
RXSPI
32
DMA
System Design
INTERNAL
32
MEMORY
LOADER KERNEL
0X80000
0X800FF
15-27