PIC18F26K20-E/SO Microchip Technology, PIC18F26K20-E/SO Datasheet - Page 193

• Manufacturer Part Number: PIC18F26K20-E/SO
• Description: IC PIC MCU FLASH 16KX16 28-SOIC
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F26K20-E/SO

• Program Memory Type: FLASH
• Program Memory Size: 64KB (32K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 24
• Eeprom Size: 1K x 8
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3936 B
• Interface Type: CCP/ECCP/EUSART/I2C/MSSP/SPI
• Maximum Clock Frequency: 64 MHz
• Number Of Programmable I/os: 25
• Number Of Timers: 4
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 11-ch x 10-bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 64 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164112 - VOLTAGE LIMITER MPLAB ICD2 VPPAC164303 - MODULE SKT FOR PM3 64TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

17.0
17.1
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 (I
The I
hardware:
• Master mode
• Multi-Master mode
• Slave mode
17.2
The MSSP module has seven associated registers.
These include:
• SSPSTA – STATUS register
• SSPCON1 – First Control register
• SSPCON2 – Second Control register
• SSPBUF – Transmit/Receive buffer
• SSPSR – Shift register (not directly accessible)
• SSPADD – Address register
• SSPMSK – Address Mask register
The use of these registers and their individual Configu-
ration bits differ significantly depending on whether the
MSSP module is operated in SPI or I
Additional details are provided under the individual
sections.
 2010 Microchip Technology Inc.
- Full Master mode
- Slave mode (with general address call)
2
C interface supports the following modes in
MASTER SYNCHRONOUS
SERIAL PORT (MSSP)
MODULE
Master SSP (MSSP) Module
Overview
Control Registers
2
C)
2
C mode.
17.3
The SPI mode allows 8 bits of data to be synchronously
transmitted and received simultaneously. All four
modes
communication, typically three pins are used:
• Serial Data Out – SDO
• Serial Data In – SDI/SDA
• Serial Clock – SCK/SCL
Additionally, a fourth pin may be used when in a Slave
mode of operation:
• Slave Select – SS
Figure 17-1 shows the block diagram of the MSSP
module when operating in SPI mode.
FIGURE 17-1:
PIC18F2XK20/4XK20
SCK/SCL
SDI/SDA
SDO
SS
SPI Mode
of
SPI
Read
are
SS Control
Select
SMP:CKE
Edge
MSSP BLOCK DIAGRAM
(SPI MODE)
Select
bit 0
Edge
Enable
supported.
TRIS bit
SSPBUF Reg
Data to TX/RX in SSPSR
SSPSR Reg
2
Clock Select
SSPM<3:0>
4
DS41303G-page 193
2
To
(
Prescaler
4, 16, 64
TMR2 Output
Write
Clock
Shift
accomplish
Data Bus
Internal
2
T
OSC
)