COP888EB Datasheet, PDF (50/75 Pages) National Semiconductor (TI) – 8-Bit CMOS ROM Based Microcontrollers with 8k Memory, CAN Interface, 8-Bit A/D, and USART

Serial Peripheral Interface (Continued)
FIGURE 39. Programming the SPI Expander
DS012837-41
SESSEN = 1, SCE = 0. If MOSI = 0 at the falling edge of SS, the ESS programming
mode is detected and all N-port alternate functions are enabled.
FIGURE 40. Programming the SS Expander
DS012837-42
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