DLPS156F January 2019 – November 2024 DLPC3436
PRODUCTION DATA
The SPI pins of the flash can be driven directly for flash programming, while the DLPC34xx controller I/Os are tristated. SPI0_CLK, SPI0_DOUT, and SPI0_CSZ0 I/O can be tristated by holding RESETZ in a logic low state while power is applied to the controller. The logic state of the SPI0_CSZ1 pin is not affected by this action. Alternatively, the DLPC34xx controller can program the SPI flash when commanded through an I2C if a valid firmware image has already been loaded and the controller is operational.