TQ-Systems TQMa6x, User Manual

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User's Manual l TQMa6x & TQMa6xP UM 0403 l © 2019, TQ-Systems GmbH Page 10
3.2.1.8 Boot device SPI NOR flash
Table 7: Boot configuration SPI NOR flash at eCSPI1
i.MX6 TQMa6x
eFuse Option
Setting
9
Signal Pin
BOOT_CFG1[7]
Boot Device Selection:
0011 = Boot from Serial ROM
0 BOOT_CFG1_7 X2-115
BOOT_CFG1[6] 0 BOOT_CFG1_6 X2-116
BOOT_CFG1[5] 1 BOOT_CFG1_5 X2-117
BOOT_CFG1[4] 1 BOOT_CFG1_4 X2-118
BOOT_CFG4[6]
EEPROM Recovery:
10
0 = disabled
1 = enabled
0 BOOT_CFG4_6 X2-86
BOOT_CFG4[5]
CS select (SPI only):
00 = CS#0
01 = CS#1
10 = CS#2
11 = CS#3
0 BOOT_CFG4_5 X2-89
BOOT_CFG4[4] 1 BOOT_CFG4_4 X2-90
BOOT_CFG4[3]
SPI Addressing (SPI only)
0 = 2-bytes (16-bit) (3.75 MHz Clock)
1 = 3 Bytes (24-bit) (15 MHz Clock)
1 BOOT_CFG4_3 X2-91
BOOT_CFG4[2]
Port Select:
000 = ECSPI-1
001 = ECSPI-2
010 = ECSPI-3
001 = ECSPI-4
100 = ECSPI-5
101 = I2C-1
110 = I2C-2
111 = I2C-3
0 BOOT_CFG4_2 X2-92
BOOT_CFG4[1] 0 BOOT_CFG4_1 X2-93
BOOT_CFG4[0] 0 BOOT_CFG4_0 X2-96
Note: SPI NOR flash size
It is not possible to boot from an SPI NOR flash bigger than 16 Mbyte.
9: Voltage level or condition of eFuse.
10: The i.MX6 supports recovery devices. If this bit is set, the SPI NOR flash serves as recovery boot device.