I have an 8535 design that will require ISP via the SPI port. The difficulty lies in the fact that the RESET line on the 8535 is driven by a MAX707 MCU supervisor, and I have a MAXMAX3110 (SPI driven UART) attached to the SPI pins to add an additional uart to my system.
In looking at the STK500 ISP connections & Reading the 8535 Datasheet, RESET, MISO, MOSI, SCLK are all used for ISP. Does anyone have any configuration suggestions to prevent any contention between the MAX707 & ISP on the RESET line. Also any thoughts if I need to isolate my SPI UART while programming the 8535?