PIC16F877-20L Datasheet, PDF (65/218 Pages) Microchip Technology – 28/40-Pin 8-Bit CMOS FLASH Microcontrollers

9.0 MASTER SYNCHRONOUS
SERIAL PORT (MSSP)
MODULE
The Master Synchronous Serial Port (MSSP) module is
a serial interface, useful for communicating with other
peripheral or microcontroller devices. These peripheral
devices may be serial EEPROMs, shift registers, dis-
play drivers, A/D converters, etc. The MSSP module
can operate in one of two modes:
• Serial Peripheral Interface (SPI)
• Inter-Integrated Circuit (I²C)
Figure 9-1 shows a block diagram for the SPI mode,
while Figure 9-5 and Figure 9-9 show the block dia-
grams for the two different I²C modes of operation.
The Application Note AN734, “Using the PIC^® MCU
SSP for Slave I²C^TM Communication” describes the
slave operation of the MSSP module on the
PIC16F87X devices. AN735, “Using the PIC^® MCU
MSSP Module for I²C^TM Communications” describes
the master operation of the MSSP module on the
PIC16F87X devices.
PIC16F87X
 1998-2013 Microchip Technology Inc.
DS30292D-page 65