PIC16LF1824T39A_12 Datasheet, PDF (229/418 Pages) Microchip Technology – 20-Pin Flash Microcontrollers with XLP Technology

PIC16LF1824T39A
25.0 MASTER SYNCHRONOUS
SERIAL PORT MODULE
25.1 Master SSP (MSSP1) Module
Overview
The Master Synchronous Serial Port (MSSP1) 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. The MSSP1
module can operate in one of two modes:
• Serial Peripheral Interface (SPI)
• Inter-Integrated Circuit (I²C™)
The SPI interface supports the following modes and
features:
• Master mode
• Slave mode
• Clock Parity
• Slave Select Synchronization (Slave mode only)
• Daisy chain connection of slave devices
Figure 25-1 is a block diagram of the SPI interface
module.
FIGURE 25-1:
MSSP1 BLOCK DIAGRAM (SPI MODE)
Read
Data Bus
Write
SSP1BUF Reg
SDI
SDO
SSP1SR Reg
bit 0
Shift
Clock
SS
SCK
SS Control
Enable
Edge
Select
2 (CKP, CKE)
Clock Select
SSP1M<3:0>
4
( ) ^{TMR2 Output}
2
Edge
Select
Prescaler TOSC
4, 16, 64
TRIS bit
Baud Rate
Generator
(SSP1ADD)
 2012 Microchip Technology Inc.
Preliminary
DS41657A-page 229