30 MSSP - Host Synchronous Serial Port Module

The Host 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, display drivers, A/D converters, etc.

Table 30-1. MSSP Module Availability
DeviceMSSP1
PIC16F13113Yes
PIC16F13114Yes
PIC16F13115Yes
PIC16F13123Yes
PIC16F13124Yes
PIC16F13125Yes
PIC16F13143Yes
PIC16F13144Yes
PIC16F13145Yes

The MSSP module can operate in one of two modes:

  • Serial Peripheral Interface (SPI)
  • Inter-Integrated Circuit (I2C)

The SPI interface can operate in Host or Client mode and supports the following features:

  • Selectable clock parity
  • Client select synchronization (Client mode only)
  • Daisy-chain connection of client devices

The I2C interface can operate in Host or Client mode and supports the following modes and features:

  • Byte NACKing (Client mode)
  • Limited multi-host support
  • 7-bit and 10-bit addressing
  • Start and stop interrupts
  • Interrupt masking
  • Clock stretching
  • Bus collision detection
  • General call address matching
  • Address masking
  • Address Hold and Data Hold modes
  • Selectable SDA hold times