PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 225
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PIC12F1822
Manufacturer Part Number
PIC12F1822
Description
8/14-Pin Flash Microcontrollers with nanoWatt XLP Technology
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC12F1822.pdf
(398 pages)
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24.0
24.1
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, dis-
play drivers, A/D converters, etc. The MSSP1 module
can operate in one of two modes:
• Serial Peripheral Interface (SPI)
• Inter-Integrated Circuit (I
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 24-1 is a block diagram of the SPI interface
module.
FIGURE 24-1:
2010 Microchip Technology Inc.
MASTER SYNCHRONOUS
SERIAL PORT MODULE
Master SSP (MSSP1) Module
Overview
MSSP1 BLOCK DIAGRAM (SPI MODE)
2
C™)
SCK
SDO
SDI
SS
Read
SS Control
TRIS bit
PIC12F/LF1822/16F/LF1823
bit 0
Enable
Select
Select
Edge
Edge
Preliminary
SSP1BUF Reg
SSP1SR Reg
SSP1M<3:0>
4
Clock
Shift
Write
(
Prescaler
Data Bus
4, 16, 64
TMR2 Output
Baud rate
generator
(SSP1ADD)
2 (CKP, CKE)
2
Clock Select
T
OSC
)
DS41413A-page 225
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