Bootstrap Configuration Tool

Device & Use Case

Device:

Target device family

Use Case:

Common boot configurations

Pincount Mode:

Select bootstrap pin mapping mode

Boot Configuration Preset:

Select from predefined boot configurations (BOOTMODE[15:12])

PLL Configuration (Bits 0-2):

Reference clock frequency

Primary Boot Mode (Bits 3-6):

Primary boot device

Primary Boot Config (Bits 7-9):

Config for primary mode

Backup Boot Mode (Bits 10-12):

Fallback boot mode

Backup Boot Config (Bit 13):

Config for backup mode

25 MHz PLL → OSPI Primary → None Backup

Reserved 00 Bits 14-15

Backup Config 0 Bit 13

Backup Mode 000 Bits 10-12

Primary Config 000 Bits 7-9

Primary Mode 0000 Bits 3-6

PLL Config 010 Bits 0-2

0000 0000 0000 0000

Hex: 0x0000 | Decimal: 0

PLL Configuration (Bits 0-2)

B2	B1	B0	Reference Clock (MHz)
0	1	0	25 MHz
0	1	1	Reserved
1	0	0	Reserved

Primary Boot Modes (Bits 3-6)

Bits 3-6	Boot Mode	Common Use Case
0000	Serial NAND	Serial NAND flash boot
0001	OSPI	Octal SPI flash boot
0010	QSPI	Quad SPI flash boot
0011	SPI	Standard SPI flash boot
0100	Ethernet RGMII	Network boot via RGMII
0101	Ethernet RMII	Network boot via RMII
0110	I2C	Boot from I2C EEPROM
0111	UART	Serial console boot
1000	MMCSD Boot	SD card or eMMC UDA boot
1001	eMMC Boot	eMMC hardware boot partition
1010	USB	USB device boot
1011	GPMC NAND	Parallel NAND via GPMC
1100	GPMC NOR	Parallel NOR via GPMC
1101	Fast-xSPI	Fast xSPI configuration
1110	xSPI	Extended SPI interface
1111	No-boot/Dev boot	Development/debug mode

Backup Boot Modes (Bits 10-12)