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Complex Programmable Logic Device (CPLD) Architecture and Its Applications

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elprocus
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A CPLD (complex programmable logic device) chip includes several circuit blocks on a single chip with inside wiring resources to attach the circuit blocks. Each circuit block is comparable to a PLA or a PAL.

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Complex Programmable Logic Device (CPLD) Architecture and Its Applications
http://www.elprocus.com/ Introduction: Complex Programmable Logic Device (CPLD) Architecture and Its Applications  A CPLD (complex programmable logic device) chip includes several circuit blocks on a single chip with inside wiring resources to attach the circuit blocks. Each circuit block is comparable to a PLA or a PAL. These chips are inadequate to fairly modest sizes, normally supporting a mutual number of inputs and outputs of not more than 32. For designing of these circuits that need more inputs and outputs, either numerous PLAs/ PALs can be employed or else a more classy type of chip can be used called a CPLD
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  The acronym of the CPLD is “Complex programmable logic devices.  it is a one kind of integrated circuit that application designers design to implement digital hardware like mobile phones.  These can handle knowingly higher designs than SPLDs (simple programmable logic devices).  But It offer less logic than FPGAs (field programmable gate arrays).  CPLDs include numerous logic blocks.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  Each of the blocks includes 8-16 macrocells.  Every logic block executes a specific function.  All of the macrocells in a logic block are fully connected.  Depending upon the use, these blocks may or may not be connected to one another.  Most CPLDs have macrocells with a sum of logic function and an elective flip- flop.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  Depending on the chip, the combinatorial logic function supports from 4 to 16 product terms
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  CPLDs also differ in terms of shift registers and logic gates.  Due to this reason, CPLDs with a huge number of logic gates may be used instead of FPGAs.  Another CPLD specification signifies the number of product terms that a macrocell can accomplish.  Product terms are the product of digital signals that execute a specific logic function.  CPLDs are available in several IC package forms and logic families.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  CPLDs also differ in terms of supply voltage, operating current, standby current and power dissipation.  These are obtainable with various amounts of memory and various kinds of memory support.  Memory is expressed in bits/ megabits.  Memory support consists of ROM, RAM and dual-port RAM.  It also comprises of CAM (content addressable memory) as well as FIFO (first-in, first-out) memory and LIFO (last-in, last-out) memory.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  A complex programmable logic device comprises of a group of programmable FBs (functional blocks).  The inputs and outputs of these functional blocks are connected together by a GIM (global interconnection matrix).  This interconnection matrix is reconfigurable.  So that we can modify the contacts between the functional blocks.  There will be some input and output blocks that let us to unite CPLD to external world.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  The programmable FB looks like the array of logic gates
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  In CPLD programming, the design is first coded in Verilog or VHDL language.  Once the code is (simulated and synthesized. During synthesis, the CPLD model (target device) is handpicked.  A technology based mapping net list is produced.  This list can be close-fitting to the genuine CPLD architecture using a place and route process.  It is achieved by the place-and-route software of CPLD Company’s proprietary.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  Then the operator will do some confirmation processes.  If everything is good, he will utilize the CPLD, else he will rearrange it.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture Issues of CPLD  When considering a complex programmable logic device for use in design.  There is some following architecture issues can be taken into account.  The programming technology  The function block capability  The I/O capability
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture Issues of CPLD  Some of the families of CPLD from different retailers include  Altera MAX 7000 and MAX 9000 families  Atmel ATF and ATV families  Lattice isp LSI family  Lattice (Vantis) MACH family  Xilinx XC9500 family
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture Issues of CPLD Families of CPLD
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Applications of CPLD  Complex programmable logic devices are ideal for high performance, critical control applications.  CPLD can be used in digital designs to perform the functions of boot loader  CPLD is used for loading the configuration data of a field programmable gate array from non-volatile memory.  Generally, these are used in small design applications like address decoding
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Applications of CPLD  CPLDs are frequently used many applications like in cost sensitive, battery operated portable devices due to its low size and usage of low power.
http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Conclusion  Thus, this is all about complex programmable logic device architecture and its applications. Small digital circuits can be implemented by using PALs and PLAs. Each device is used to implement various circuits that do not need more than the number of i/ps, o/ps and product terms that are offered in the specific chip.
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Complex Programmable Logic Device (CPLD) Architecture and Its Applications

  • 1. Complex Programmable Logic Device (CPLD) Architecture and Its Applications
  • 2. http://www.elprocus.com/ Introduction: Complex Programmable Logic Device (CPLD) Architecture and Its Applications  A CPLD (complex programmable logic device) chip includes several circuit blocks on a single chip with inside wiring resources to attach the circuit blocks. Each circuit block is comparable to a PLA or a PAL. These chips are inadequate to fairly modest sizes, normally supporting a mutual number of inputs and outputs of not more than 32. For designing of these circuits that need more inputs and outputs, either numerous PLAs/ PALs can be employed or else a more classy type of chip can be used called a CPLD
  • 3. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  The acronym of the CPLD is “Complex programmable logic devices.  it is a one kind of integrated circuit that application designers design to implement digital hardware like mobile phones.  These can handle knowingly higher designs than SPLDs (simple programmable logic devices).  But It offer less logic than FPGAs (field programmable gate arrays).  CPLDs include numerous logic blocks.
  • 4. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  Each of the blocks includes 8-16 macrocells.  Every logic block executes a specific function.  All of the macrocells in a logic block are fully connected.  Depending upon the use, these blocks may or may not be connected to one another.  Most CPLDs have macrocells with a sum of logic function and an elective flip- flop.
  • 5. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  Depending on the chip, the combinatorial logic function supports from 4 to 16 product terms
  • 6. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  CPLDs also differ in terms of shift registers and logic gates.  Due to this reason, CPLDs with a huge number of logic gates may be used instead of FPGAs.  Another CPLD specification signifies the number of product terms that a macrocell can accomplish.  Product terms are the product of digital signals that execute a specific logic function.  CPLDs are available in several IC package forms and logic families.
  • 7. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications What is a Complex Programmable Logic Device?  CPLDs also differ in terms of supply voltage, operating current, standby current and power dissipation.  These are obtainable with various amounts of memory and various kinds of memory support.  Memory is expressed in bits/ megabits.  Memory support consists of ROM, RAM and dual-port RAM.  It also comprises of CAM (content addressable memory) as well as FIFO (first-in, first-out) memory and LIFO (last-in, last-out) memory.
  • 8. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  A complex programmable logic device comprises of a group of programmable FBs (functional blocks).  The inputs and outputs of these functional blocks are connected together by a GIM (global interconnection matrix).  This interconnection matrix is reconfigurable.  So that we can modify the contacts between the functional blocks.  There will be some input and output blocks that let us to unite CPLD to external world.
  • 9. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  The programmable FB looks like the array of logic gates
  • 10. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  In CPLD programming, the design is first coded in Verilog or VHDL language.  Once the code is (simulated and synthesized. During synthesis, the CPLD model (target device) is handpicked.  A technology based mapping net list is produced.  This list can be close-fitting to the genuine CPLD architecture using a place and route process.  It is achieved by the place-and-route software of CPLD Company’s proprietary.
  • 11. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture of Complex Programmable Logic Device  Then the operator will do some confirmation processes.  If everything is good, he will utilize the CPLD, else he will rearrange it.
  • 12. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture Issues of CPLD  When considering a complex programmable logic device for use in design.  There is some following architecture issues can be taken into account.  The programming technology  The function block capability  The I/O capability
  • 13. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture Issues of CPLD  Some of the families of CPLD from different retailers include  Altera MAX 7000 and MAX 9000 families  Atmel ATF and ATV families  Lattice isp LSI family  Lattice (Vantis) MACH family  Xilinx XC9500 family
  • 14. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Architecture Issues of CPLD Families of CPLD
  • 15. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Applications of CPLD  Complex programmable logic devices are ideal for high performance, critical control applications.  CPLD can be used in digital designs to perform the functions of boot loader  CPLD is used for loading the configuration data of a field programmable gate array from non-volatile memory.  Generally, these are used in small design applications like address decoding
  • 16. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Applications of CPLD  CPLDs are frequently used many applications like in cost sensitive, battery operated portable devices due to its low size and usage of low power.
  • 17. http://www.elprocus.com/ Complex Programmable Logic Device (CPLD) Architecture and Its Applications Conclusion  Thus, this is all about complex programmable logic device architecture and its applications. Small digital circuits can be implemented by using PALs and PLAs. Each device is used to implement various circuits that do not need more than the number of i/ps, o/ps and product terms that are offered in the specific chip.