66AK2L06
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SPRS930 –APRIL 2015
9.1.2.4.5 SPI Boot Parameter Table
Table 9-19. SPI Boot Parameter Table
CONFIGURED
BYTE THROUGH BOOT
OFFSET NAME DESCRIPTION CONFIGURATION PINS
22 Options Bits 01 & 00 Modes NO
• 00 = Load a boot parameter table from the SPI (Default mode)
• 01 = Load boot records from the SPI (boot tables)
• 10 = Load boot config records from the SPI (boot config tables)
• 11 = Load GP header blob
Bits 15- 02= Reserved
24 Address Width The number of bytes in the SPI device address. Can be 16 or 24 bit YES
26 NPin The operational mode, 4 or 5 pin YES
28 Chipsel The chip select used (valid in 4 pin mode only). Can be 0-3. YES
30 Mode Standard SPI mode (0-3) YES
32 C2Delay Setup time between chip assert and transaction NO
34 Bus Freq, 100kHz The SPI bus frequency in kHz. NO
36 Read Addr MSW The first address to read from, MSW (valid for 24 bit address width only) YES
38 Read Addr LSW The first address to read from, LSW YES
40 Next Chip Select Next Chip Select to be used (Used only in boot Config mode) NO
42 Next Read Addr MSW The Next read address (used in boot config mode only) NO
44 Next Read Addr LSW The Next read address (used in boot config mode only) NO
9.1.2.4.6 UART Boot Parameter Table
Table 9-20. UART Boot Parameter Table
CONFIGURED THROUGH
BYTE BOOT CONFIGURATION
OFFSET NAME DESCRIPTION PINS
22 Reserved None NA
24 Data Format Bits 00 Data Format NO
• 0 = Data Format is BLOB
• 1 = Data Format is Boot Table
Bits 15 - 01 Reserved
26 Protocol Bits 00 Protocol NO
• 0 = Xmodem Protocol
• 1 = Reserved
Bits 15 - 01 Reserved
28 Initial NACK Count Number of NACK pings to be sent before giving up NO
30 Max Err Count Maximum number of consecutive receive errors acceptable. NO
32 NACK Timeout Time (msecs) waiting for NACK/ACK. NO
34 Character Timeout Time Period between characters NO
36 nDatabits Number of bits supported for data. Only 8 bits is supported. NO
38 Parity Bits 01 - 00 Parity NO
• 00 = No Parity
• 01 = Odd parity
• 10 = Even Parity
Bits 15 - 02 Reserved
40 nStopBitsx2 Number of stop bits times two. Valid values are 2 (stop bits = 1), 3 (Stop NO
Bits = 1.5), 4 (Stop Bits = 2)
42 Over sample factor The over sample factor. Only 13 and 16 are valid. NO
Copyright © 2015, Texas Instruments Incorporated Device Boot and Configuration 171
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