UART_SDP_DISABLE bit in the BOOT_PARAM4 of eFuse address 0x9A.

[takayuki_ishii]

Hello community,

I have 2 question about eFUSE bit of IMXRT1170.

In RT1170 Reference Manual Table 26-7. Boot parameter fusemap,

BOOT_PARAM4 have 2 SDP_DISABLE bit.

Which function does it select enable/disable?

1) UART_SDP_DISABLE : BOOT_PARAM4[1]

2) SDP_DISABLE : BOOT_PARAM4[0]

Best regards,

Ishii.

[jay_heng · Accepted solution]

Both UART and USB port can be used as SDP interface in BootROM.

SDP_DISABLE bit - whole SDP interfaces

UART_SDP_DISABLE bit - just UART port

[takayuki_ishii]

Hello jay_heng,

Thank you for your quick reply.

I will answer it to my customer.

Best regards,

Ishii.