PIC16F1507-E/ML Microchip Technology, PIC16F1507-E/ML Datasheet - Page 19

• Manufacturer Part Number: PIC16F1507-E/ML
• Description: 3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 QFN 4x4mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F1507-E/ML

• Processor Series: PIC16
• Core: PIC16F
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 3.5 KB
• Data Ram Size: 128 B
• Interface Type: ICSP
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 3
• Operating Supply Voltage: 2.3 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-20
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 125 C
• Supply Current (max): 30 uA
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: -
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Eeprom Size: -
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Lead Free Status / Rohs Status: Details

2.1
2.2
2.3
2.4
 2011 Microchip Technology Inc.
INTRODUCTION
HIGHLIGHTS
EXAMPLE PROBLEM
PROPOSED SOLUTION
Chapter 2. Manchester Line Code Example
This example will use the information in Chapter 1. “CLC Configuration Tool Overview”
in solving a typical problem that can now be achieved with ease using the Configurable
Logic Cell Configuration Tool. It is recommended that the reader first understand how to
use the program before continuing.
This chapter discusses:
• Example Problem
• Proposed Solution
• Extended Solution
You want to encode a bit stream of a typical non-return-to-zero (NRZ) line code from a
certain device to a slimmer, more versatile Manchester line code. A Manchester line
code has advantages over the typical NRZ code in that Manchester encoding com-
bines the clock and data into one data stream. It has no DC component and is
self-clocking. A diagram of a potential setup is shown in Figure 2-1.
FIGURE 2-1:
Using only one CLC module on a PIC
be no limitation to the clock speed, since the CLC is not controlled by software. This
allows the CPU to focus on the main program without dealing with the encoding pro-
cess. This also saves the designer additional costs by not having to include more exter-
nal hardware to perform the same task.
The encoding process simply requires an XOR gate with the data and clock inputs. For
this design, a PIC16F1507 is used with its CLC2 module.
NRZ LINE CODE ENCODED TO A MANCHESTER CODE
CLC CONFIGURATION TOOL
®
device would accomplish this task. There would
USER’S GUIDE
DS41597A-page 19