COP87L89RB National Semiconductor, COP87L89RB Datasheet - Page 47

• Manufacturer Part Number: COP87L89RB
• Description: 8-Bit CMOS OTP Microcontrollers with 16k or 32k Memory/ CAN Interface/ 8-Bit A/D/ and USART
• Manufacturer: National Semiconductor

Serial Peripheral Interface
(Continued)
DS100044-41
FIGURE 39. Programming the SPI Expander
DS100044-42
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
47
www.national.com