Introduction
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SPRUH91D–March 2013–Revised September 2016
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Boot Considerations
11.1 Introduction
This device supports a variety of boot modes through an internal DSP ROM bootloader. This device does
not support dedicated hardware boot modes; therefore, all boot modes utilize the internal DSP ROM. The
input states of the BOOT pins are sampled and latched into the BOOTCFG register, which is part of the
system configuration (SYSCFG) module, when device reset is deasserted. Boot mode selection is
determined by the values of the BOOT pins.
The following boot modes are supported:
• NAND Flash boot
– 8-bit NAND
– 16-bit NAND
• NOR Flash boot
– NOR Direct boot
– NOR Legacy boot
– NOR AIS boot
• HPI Boot (this peripheral is not supported on the C6745 DSP.)
• I2C0/I2C1 Boot
– Master boot
– Slave boot
• SPI0/SPI1 Boot
– Master boot
– Slave boot
• UART0/1/2 Boot
See Using the C6747/45/43 Bootloader Application Report (SPRABB1) for more details on the ROM Boot
Loader, a list of boot pins used, and the complete list of supported boot modes.
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