PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 167

• Manufacturer Part Number: PIC16F946T-I/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F946T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 336 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA160011 - DAUGHTER BOARD PICDEM LCD 16F91X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

14.0
The Synchronous Serial Port (SSP) module is a serial
interface used to communicate with other peripheral or
microcontroller devices. These peripheral devices may
be serial EEPROMs, shift registers, display drivers,
A/D converters, etc. The SSP module can operate in
one of two modes:
• Serial Peripheral Interface (SPI™)
• Inter-Integrated Circuit (I
An overview of I
on the SSP module can be found in the “PICmicro
Mid-Range MCU Family Reference Manual” (DS33023).
Refer to Application Note AN578, “Use of the SSP
Module in the Multi-Master Environment” (DS00578).
14.1
This section contains register definitions and operational
characteristics of the SPI module. Additional information
on the SPI module can be found in the “PICmicro
Mid-Range MCU Family Reference Manual” (DS33023).
The SPI mode allows 8 bits of data to be synchronously
transmitted and received simultaneously. To accomplish
communication, typically three pins are used:
• Serial Data Out (SDO)
• Serial Data In (SDI)
• Serial Clock (SCK)
Additionally, a fourth pin may be used when in a Slave
mode of operation:
• Slave Select (SS)
When initializing the SPI, several options need to be
specified. This is done by programming the appropriate
control bits in the SSPCON register (SSPCON<5:0>)
and SSPSTAT<7:6>. These control bits allow the
following to be specified:
• Master mode (SCK is the clock output)
• Slave mode (SCK is the clock input)
• Clock Polarity (Idle state of SCK)
• Clock edge (output data on rising/falling edge of
• Clock Rate (Master mode only)
• Slave Select mode (Slave mode only)
© 2005 Microchip Technology Inc.
SCK)
SSP MODULE OVERVIEW
SPI Mode
2
C operations and additional information
–
–
–
RA5/AN4/C2OUT/SS/SEG5
RC6/TX/CK/SCK/SCL/SEG9
RC7/RX/DT/SDI/SDA/SEG8
–
2
RC4/T1G/SDO/SEG11
C
™
)
Preliminary
®
®
PIC16F946
DS41265A-page 165