NXP Semiconductors QorIQ LS1028A Reference Manual page 56

Switch configuration
Switch Supported function
SW1[6:7] Reserved
SW1[8] XSPI_A device mapping
CFG_XSPI_MAP
SW2[1] CFG_ENG_USE0
SW2[2:4] Device type selection
TEST_SEL_B,
CFG_SVR[0:1]
SW2[5:6] UART2 configuration
CFG_MUX_UART2_SEL0
SW2[7] PWM configuration
CFG_MUX_PWM2uBUS1_
B
CFG_MUX_PWM2uBUS2_
B
SW2[8] SPI configuration
CFG_MUX_SPI2uBUS1_B
CFG_MUX_SPI2uBUS2_B
SW3[1:2] SoC use
SW3[3] Bypass mode
SW3[4] Write protect
SW3[5] Boot Box mode
QorIQ LS1028A Reference Design Board Reference Manual, Rev. A, 02/2018
56
Table 3-1. Switch settings (continued)
-
SW_QSPIMAP: Controls how XSPI_A chip-selects are connected to devices/
peripherals.
Bit value
0
1
SW_enguse[0]
• 0: Reserved
• 1: Use differential clock (default value)
SW_TESTSEL_B + SW_SVR[0:1]
• 011: LS1018AN/E
• 111: LS1028AN/E (default value)
SW_UART2MAP[1:0]
• 0x: UART2 on DB9 connector (default value)
• 10: UART2 on mikro-click module 1
• 11: UART2 on mikro-click module 2
SW_UCLICK_PWMMAP
• 0: PWM signal routed to mikro-click module 1 (default value)
• 1: PWM signal routed to mikro-click module 2
SW_UCLICK_SPIMAP
• 0: SPI signal routed to mikro-click module 1 (default value)
• 1: SPI signal routed to mikro-click module 2
SW_CPU_FORCE[1:0]
• 0x: Normal mode (default value)
• 10: Force LS1043 interposer
• 11: Force LS1028
NOTE: Do not change the default setting of this switch.
SW_BYPASS_B
• 0: Disable thermal monitors and other alarms
• 1: Normal operation (default value)
SW_CFG_WP
• 0: Allow write to SYSID and UEFI flash
• 1: Write-protect SYSID and UEFI flash (default value)
SW_BOOTBOX_B
• 0: Enable boot-box mode
• 1: Normal operating mode (default mode)
Table continues on the next page...
Confidential Proprietary
Description
XSPI_A_CS0 XSPI_A_CS1
Devices (Dev 0, Emulator
Dev 1)
Emulator Devices (Dev 0,
Dev 1)
Description
Default
Boot from QSPI
emulator,
program default
flash memory
NXP Semiconductors