CYF2018V CYF2036V CYF2072V 18/36/72-Mbit Programmable Multi-Queue FIFOs 18/36/72-Mbit Programmable Multi-Queue FIFOs Features Functional Description ■ Memory organization ❐ Industry’s largest first in first out (FIFO) memory densities: 18-Mbit, 36-Mbit and 72-Mbit ❐ Selectable memory organization: × 9, × 12, × 16, × 18, × 20, × 24, × 32, × 36 ■ Up to 100-MHz clock operation ■ Unidirectional operation ■ Independent read and write ports ❐ Supports simultaneous read and write operations ❐ Reads and writes operate on independent clocks, upto a maximum ratio of two, enabling data buffering across clock domains. ❐ Supports multiple I/O voltage standard: Low voltage complementary metal oxide semiconductor (LVCMOS) 3.3 V and 1.8 V voltage standards. The Cypress programmable FIFO family offers the industry’s highest-density FIFO memory device. It has independent read and write ports, which can be clocked up to 100 MHz. User can configure input and output bus sizes. A maximum bus size of 36 bits enables a maximum data throughput of 3.6 Gbps. The user-programmable registers enable user to configure the device operation as desired. The device also offers a simple and easy-to-use interface to reduce implementation and debugging efforts, improve time-to-market, and reduce engineering costs. This makes it an ideal memory choice for a wide range of applications including multiprocessor interfaces, video and image processing, networking and telecommunications, high-speed data acquisition, or any system that needs buffering at high speeds across different clock domains. ■ Input and output enable control for write mask and read skip operations ■ User configured multi-queue operating mode upto 8-queues ■ Mark and retransmit: resets read pointer to user marked position ■ Empty and full flags ■ Flow-through mailbox register to send data from input to output port, bypassing the FIFO sequence ■ Separate serial clock (SCLK) input for serial programming ■ Master reset to clear entire FIFO ■ Joint test action group (JTAG) port provided for boundary scan function ■ Industrial temperature range: –40 °C to +85 °C As implied by the name, the functionality of the FIFO is such that the data is read out of the read port in the same sequence in which it was written into the write port. If the writes and inputs are enabled (WEN & IE), data on the write port gets written into the device at the rising edge of write clock. Enabling reads and outputs (REN & OE) fetches data on the read port at every rising edge of the read clock. Both reads and writes can occur simultaneously at different speeds provided the ratio between read and write clock is in the range of 0.5 to 2. Appropriate flags are set whenever the FIFO is empty or full. The device supports multi-queue mode of operation where it can be configured in 8, 4 or 2 queue modes with each queue operating as an independent FIFO. It also supports single-queue mode of operation. The FIFO includes features such as mark and retransmit and a flow-through mailbox register. All product features and specs are common to all densities (CYF2072V, CYF2036V, and CYF2018V) unless otherwise specified. All descriptions are given assuming the device is CYF2072V operated in × 36 mode. They are valid for other densities (CYF2036V, and CYF2018V) and all port sizes × 9, × 12, × 16, × 18, × 20, × 24 and × 32 unless otherwise specified. The only difference will be in the input and output bus width. Table 1 on page 7 shows the part of bus with valid data from D[35:0] and Q[35:0] in × 9, × 12, × 16, × 18, × 20, × 24, × 32 and × 36 modes. For a complete list of related documentation, click here. Errata: For information on silicon errata, see Errata on page 30. Details include trigger conditions, devices affected, and proposed workaround. Cypress Semiconductor Corporation Document Number: 001-68336 Rev. *G • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised November 27, 2014 CYF2018V CYF2036V CYF2072V Logic Block Diagram D[35:0] IE WEN WCLK LD INPUT REGISTER WQSEL[2:0] SPI_SEN SPI_SCLK CONFIGURATION REGISTERS/MAILBOX SPI_SI MB WRITE CONTROL LOGIC FF WRITE POINTER MRS RESET POINTER Memory Array FLAG LOGIC EF Qval[2:0] 18-Mbit 36-Mbit 72-Mbit DVal READ POINTER TCK TRST TMS JTAG CONTROL READ CONTROL LOGIC TDO TDI MARK, RT RQSEL[2:0] OUTPUT REGISTER RCLK REN OE MEMORY LOGIC ORGANIZATION Q[35:0] PORTSZ[2:0] Document Number: 001-68336 Rev. *G Page 2 of 32 CYF2018V CYF2036V CYF2072V Contents Pin Diagram for CYF2XXXVXXL ...................................... 4 Pin Definitions .................................................................. 5 Architecture ...................................................................... 6 Reset Logic ................................................................. 6 Multi-Queue Operation ................................................ 7 Selecting Word Sizes .................................................. 7 Memory Organization for Different Port Sizes ............. 7 Data Valid Signal (DVal) .............................................. 7 Queue Valid Signal (QVal[2:0]) ................................... 7 Write Mask and Read Skip Operation ......................... 7 Flow-through mailbox Register .................................... 8 Flag Operation ............................................................. 8 Retransmit from Mark Operation ................................. 8 Programming Configuration Registers ........................ 8 Width Expansion Configuration ................................. 11 Power Up ................................................................... 12 Read/Write Clock Requirements ............................... 12 JTAG operation ............................................................... 13 Maximum Ratings ........................................................... 14 Operating Range ............................................................. 14 Recommended DC Operating Conditions .................... 14 Electrical Characteristics ............................................... 14 I/O Characteristics .......................................................... 15 Document Number: 001-68336 Rev. *G Latency Table .................................................................. 15 AC Test Load Conditions ............................................... 16 Switching Characteristics .............................................. 17 Switching Waveforms .................................................... 18 Ordering Information ...................................................... 27 Ordering Code Definitions ......................................... 27 Package Diagram ............................................................ 28 Acronyms ........................................................................ 29 Document Conventions ................................................. 29 Units of Measure ....................................................... 29 Errata ............................................................................... 30 Part Numbers Affected .............................................. 30 18-Mbit, 36-Mbit, and 72-Mbit Programmable FIFO Qualification Status ............ 30 18-Mbit, 36-Mbit, and 72-Mbit Programmable FIFO Errata Summary ................. 30 Document History Page ................................................. 31 Sales, Solutions, and Legal Information ...................... 32 Worldwide Sales and Design Support ....................... 32 Products .................................................................... 32 PSoC® Solutions ...................................................... 32 Cypress Developer Community ................................. 32 Technical Support ..................................................... 32 Page 3 of 32 CYF2018V CYF2036V CYF2072V Pin Diagram for CYF2XXXVXXL Figure 1. 209-ball FBGA (Top View) [1] 1 2 3 4 5 6 7 8 9 10 11 A FF D0 D1 WQSEL0 PORTSZ0 PORTSZ1 DNU RQSEL0 RT Q0 Q1 B EF D2 D3 WQSEL1 DNU PORTSZ2 DNU RQSEL1 REN Q2 Q3 C D4 D5 WEN WQSEL2 VCC1 DNU VCC1 RQSEL2 RCLK Q4 Q5 D D6 D7 VSS VCC1 DNU LD DNU VCC1 VSS Q6 Q7 E D8 D9 VCC2 VCC2 VCCIO VCCIO VCCIO VCC2 VCC2 Q8 Q9 F D10 D11 VSS VSS VSS DNU VSS VSS VSS Q10 Q11 G D12 D13 VCC2 VCC2 VCCIO VCC1 VCCIO VCC2 VCC2 Q12 Q13 H D14 D15 VSS VSS VSS VCC1 VSS VSS VSS Q14 Q15 J D16 D17 VCC2 VCC2 VCCIO VCC1 VCCIO VCC2 VCC2 Q16 Q17 K DNU DNU WCLK DNU VSS IE VSS DNU VCCIO VCCIO VCCIO L D18 D19 VCC2 VCC2 VCCIO VCC1 VCCIO VCC2 VCC2 Q18 Q19 M D20 D21 VSS VSS VSS VCC1 VSS VSS VSS Q20 Q21 N D22 D23 VCC2 VCC2 VCCIO VCC1 VCCIO VCC2 VCC2 Q22 Q23 P D24 D25 VSS VSS VSS SPI_SEN VSS VSS VSS Q24 Q25 R D26 D27 VCC2 VCC2 VCCIO VCCIO VCCIO VCC2 VCC2 Q26 Q27 T D28 D29 VSS VCC1 VCC1 SPI_SI VCC1 VCC1 VSS Q28 Q29 [2] SPI_SCLK VREF OE Q30 Q31 U DVal DNU D30 D31 DNU DNU V QVal1 QVal0 D32 D33 DNU MRS MB DNU MARK Q32 Q33 W TDO QVal2 D34 D35 TDI TRST TMS TCK DNU Q34 Q35 Notes 1. Pin Diagram for 18-Mbit, 36-Mbit & 72-Mbit; 1.8V & 3.3V IO voltage options. 2. This pin should be tied to VSS preferably or can be left floating to ensure normal operation. Document Number: 001-68336 Rev. *G Page 4 of 32 CYF2018V CYF2036V CYF2072V Pin Definitions Pin Name I/O Pin Description MRS Input Master reset: MRS initializes the read and write pointers to zero, resets to 8 queue operating mode and sets the output register to all zeroes. During Master Reset, the configuration registers are all set to default values and the flags are reset. PORTSZ [2:0] Input Port word size select: Port word width select pins (common for read and write ports). WCLK Input Write clock: Data is written into the FIFO queue indicated by WQSEL[2:0] on the rising edge of WCLK provided writes are enabled (WEN low). Writes are performed either to the FIFO memory or configuration registers based on the status of the load signal (LD). LD Input Load: When LD is LOW, D[7:0] (Q[7:0]) are written (read) into (from) the configuration registers. When LD is HIGH, D[35:0] (Q[35:0]) are written (read) into (from) the FIFO. WEN Input Write enable: WEN enables WCLK to write data into the FIFO memory and configuration registers. WQSEL[2:0] Input Write Queue select: Selects the FIFO queue to be written into based on the operating mode. IE Input Input enable: IE is the data input enable signal that controls the enabling and disabling of the 36-bit data input pins. If it is enabled, data on the D[35:0] pins is written into the FIFO. The internal write address pointer is always incremented at rising edge of WCLK if WEN is enabled, regardless of the IE level. This is used for ‘write masking’ or incrementing the write pointer without writing into a location. D[35:0] Input Data inputs: Data inputs for a 36-bit bus. RCLK Input Read clock: Data is read from the FIFO queue indicated by RQSEL[2:0] on each rising edge of RCLK provided reads are enabled (REN low). LD determines whether the data is read from FIFO memory or configuration registers. REN Input Read enable: REN enables RCLK to read data from the FIFO memory and configuration registers. RQSEL[2:0] Input Read Queue select: Selects the FIFO queue to be read from based on the operating mode. OE Input Output enable: When OE is LOW, FIFO data outputs are enabled; when OE is HIGH, the FIFO’s outputs are in High Z (high impedance) state. Q[35:0] Output Data outputs: Data outputs for a 36-bit bus. DVal Output Data valid: Active low data valid signal to indicate valid data on Q[35:0]. QVal[2:0] Output Queue valid: Validate with DVal to indicate the Queue for which data is being read out on Q[35:0] DVal = 0 and QVal = 000 valid data read out from Queue-0 on Q[35:0] DVal = 0 and QVal = 001 valid data read out from Queue-1 on Q[35:0] DVal = 0 and QVal = 010 valid data read out from Queue-2 on Q[35:0] DVal = 0 and QVal = 011 valid data read out from Queue-3 on Q[35:0] DVal = 0 and QVal = 100 valid data read out from Queue-4 on Q[35:0] DVal = 0 and QVal = 101 valid data read out from Queue-5 on Q[35:0] DVal = 0 and QVal = 110 valid data read out from Queue-6 on Q[35:0] DVal = 0 and QVal = 111 valid data read out from Queue-7 on Q[35:0] MARK Input Mark for retransmit: When this pin is asserted the memory location corresponding to valid data present on the output bus is marked. Any subsequent retransmit operation resets the read pointer to this memory location. RT Input Retransmit: A HIGH pulse on RT resets the internal read pointer to a physical location in the FIFO which is marked by the user (using MARK pin). With every valid read cycle after retransmit, previously accessed data is read until the FIFO is empty. MB Input Mailbox: When asserted the reads and writes happen to flow-through mailbox register. EF Output Empty flag: When EF is LOW, the Queue is empty. EF is synchronized to RCLK. FF Output Full flag: When FF is LOW, the Queue is full. FF is synchronized to WCLK. SPI_SCLK Input Serial clock: A rising edge on SPI_SCLK clocks the serial data present on the SPI_SI input into the offset registers if SPI_SEN is enabled. Document Number: 001-68336 Rev. *G Page 5 of 32 CYF2018V CYF2036V CYF2072V Pin Definitions (continued) Pin Name I/O Pin Description SPI_SI Input Serial input: Serial input when SPI_SEN is enabled. SPI_SEN Input Serial enable: Enables serial loading of configuration registers. TCK Input Test clock (TCK) pin for JTAG. TRST Input Reset pin for JTAG. TMS Input Test mode select (TMS) pin for JTAG. TDI Input Test data in (TDI) pin for JTAG. TDO Output Test data out (TDO) for JTAG. VREF Input Reference voltage: Reference voltage of 0.75V (regardless of I/O standard used). Reference VCC1 Power Supply Core voltage supply 1: 1.8 V supply voltage VCC2 Power Supply Core voltage supply 2: 1.5 V supply voltage VCCIO Power Supply Supply for I/Os VSS Ground Ground DNU – Do not use: These pins need to be left floating. Architecture state, but internally the read pointer for the corresponding RQSEL[2:0] is incremented. The CYF2072V, CYF2036V, and CYF2018V are memory arrays of 72-Mbit, 36-Mbit, and 18-Mbit respectively. The memory organization is user configurable and word sizes can be selected as × 9, × 12, × 16, × 18, × 20, × 24, × 32, or × 36. The logic blocks to implement the FIFO functionality and the associated features are built around these memory arrays. The MARK signal is used to ‘mark’ the location from which data can be retransmitted when requested and RT is asserted to retransmit the data from the marked location. The input and output data buses have a maximum width of 36 bits. The input data bus goes to an input register and the data flow from the input register to the memory is controlled by the write control logic. The inputs to the write logic block are WCLK, WEN, IE and WQSEL[2:0]. When the writes are enabled through WEN and inputs are enabled through IE, data on the input bus is written into the FIFO queue indicated by WQSEL[2:0] at the rising edge of WCLK. This also increments the write pointer for the corresponding FIFO queue. Enabling writes but disabling the data input through IE only increments the write pointer without doing any writes or altering the contents of the location. Similarly, the output register is connected to the data output bus. Transfer of contents from the memory to the output register is controlled by the read control logic. The inputs to the read control logic include RCLK, REN, RQSEL[2:0], MARK and RT. RQSEL[2:0] selects the Queue to be read. When reads are enabled by REN and outputs are enabled through OE, data from the FIFO queue is transferred to the output data bus at the rising edge of RCLK along with active low DVal. Qval[2:0] indicates the Queue number to which the read data belongs. If OE is disabled and the reads are enabled, the outputs are in high impedance Document Number: 001-68336 Rev. *G During write operation, the number of writes performed is always an even number (i.e., minimum write burst length is two and number of writes always a multiple of two). Whereas during read operation, the number of reads performed can be even or odd (i.e., minimum read burst length is one). It is possible to divide the whole memory space into 2, 4 or 8 equal sized arrays. By default, the FIFO is accessed as a 8Q device. For more explanation please refer to Multi-Queue Operation on page 7. Reset Logic A Master Reset cycle is required after power up before accessing the FIFO. MRS resets the configuration registers which configures the device to Multi-Queue (8Q) mode and sets the output register to zero. It also initializes the read and write pointers to zero, and sets the flags to their default condition (FF deasserted and EF asserted) for all eight Queues. The mark address is also set to the default physical location for each queue. After MRS, a minimum latency of 1024 clocks is necessary before the first access. The word size is configured through PORTSZ pins; values of the three PORTSZ pins are latched on rising edge of MRS. Page 6 of 32 CYF2018V CYF2036V CYF2072V Multi-Queue Operation In this mode, the entire memory space is divided into equal sized memory arrays and each individual memory array can be accessed as an independent FIFO. These equally sized memory arrays are referred to as Queues and they are numbered Queue-0 to Queue-7. For example, when the 72M device, is configured in eight queue mode, the entire memory space of 72M is divided into eight memory arrays of 9M capacity. These queues can be accessed independently using the queue select signals WQSEL[2:0] and RQSEL[2:0]. It is also possible to configure the whole memory space of CYF2072V into 4 or 2 equal sized arrays. This is equivalent to having four or two independent Queues inside the FIFO. The device can be used as a single FIFO by configuring the FIFO in single queue mode. In this case, the entire memory space is accessed as a single Queue. The number of Queues is configured based on the value of D2, D1 & D0 bit of configuration register 0x3 (refer to Table 2 on page 9). Table 3 on page 9 shows the value to be set in D2, D1 & D0 of configuration register 0x3 to configure the device in 1/2/4/8 Queue modes. Table 1. FIFO Depth - Word Size & Operating Mode FIFO Depth/queue [3] (No. of locations) PORTSZ[2:0] Word Size 1Q mode 2Q mode 4Q mode 8Q mode Active Input Active Output Memory Size [3] Data Pins D[N:0] Data Pins Q[N:0] 000 ×9 8M 4M 2M 1M 72-Mbit D[8:0] Q[8:0] 001 × 12 4M 2M 1M 512 K 48-Mbit D[11:0] Q[11:0] 010 × 16 4M 2M 1M 512 K 64-Mbit D[15:0] Q[15:0] 011 × 18 4M 2M 1M 512 K 72-Mbit D[17:0] Q[17:0] 100 × 20 2M 1M 512 K 256 K 40-Mbit D[19:0] Q[19:0] 101 × 24 2M 1M 512 K 256 K 48-Mbit D[23:0] Q[23:0] 110 × 32 2M 1M 512 K 256 K 64-Mbit D[31:0] Q[31:0] 111 × 36 2M 1M 512 K 256 K 72-Mbit D[35:0] Q[35:0] Selecting Word Sizes also helps when write and read operations are performed continuously at different frequencies by indicating when valid data is available at the output port Q[35:0]. In multi-queue mode, this signal should be used along with Queue Valid Signal (QVal[2:0]) to determine the queue from which data is being read. The word sizes are configured based on the logic levels on the PORTSZ pins during the master reset (MRS) cycle only (latched on low to high edge). The port size cannot be changed during normal mode of operation and these pins are ignored. Table 1 explains the pins of D[35:0] and Q[35:0] that will have valid data in modes where the word size is less than × 36. If word size is less than × 36, the unused output pins are tri-stated by the device.and unused input pins will be ignored by the internal logic. The pins with valid data input D[N:0] and output Q[N:0] is given in Table 1. Queue Valid (Qval[2:0]) is a three bit output that indicates the Queue from which valid data is being read. When DVal signal is high, the values on this bus should be ignored. Memory Organization for Different Port Sizes Write Mask and Read Skip Operation The 72-Mbit memory has different organizations for different port sizes. Table 1 shows the depth of the FIFO for all port sizes. As mentioned in Architecture on page 6, enabling writes but disabling the inputs (IE HIGH) increments the write pointer without doing any write operations or altering the contents of the location. Note that for all port sizes, four to eight locations are not available for writing the data and are used to safeguard against false synchronization of empty and full flags. Data Valid Signal (DVal) Data valid (DVal) is an active LOW signal, synchronized to RCLK signal and is provided to check for the data on output bus. When a read operation is performed, the DVal signal goes low along with output data. This helps user to capture the data without having to keep track of REN to data output latency. This signal Queue Valid Signal (QVal[2:0]) This feature is called Write Mask and allows user to move the write pointer without actually writing to the locations. This “write masking” ability is useful in some video applications such as Picture In Picture (PIP). Similarly, during a read operation, if the outputs are disabled (OE high). The read data does not appear on the output bus; however, the read pointer is incremented. This feature is referred to as a Read Skip Operation. Note 3. For all port sizes, four to eight locations are not available for writing the data. Document Number: 001-68336 Rev. *G Page 7 of 32 CYF2018V CYF2036V CYF2072V Flow-through mailbox Register This register transfers data from input to output directly bypassing the FIFO sequence. When MB signal is asserted the data present on D[35:0] will be available on Q[35:0] after two WCLK cycles. Normal read and write operations are not allowed during flow-through mailbox operation. Before starting Flow-through mailbox operation FIFO read should be completed to make data valid (DVal) high in order to avoid data loss from FIFO. The width of flow-through mailbox register always corresponds to port size. Flag Operation This device provides two flags to indicate the condition of the FIFO Queues. Full Flag Full Flag (FF) LOW indicates whether the queue accessed by WQSEL[2:0] is full and it operates on double word (burst length of two) boundaries. Write operations are inhibited whenever FF is LOW regardless of the state of WEN. FF is synchronized to WCLK, that is, it is exclusively updated by each rising edge of WCLK. The worst case assertion latency for Full Flag is four. As the user cannot know that the FIFO is full for four clock cycles, it is possible that user continues writing data during this time. In this case, the four data words written will be stored to prevent data loss and these words have to be read back in order for full flag to get de-asserted. In 2Q or 4Q or 8Q mode, FF indicates the status of the queue selected by WQSEL[2:0]. The minimum number of reads required to de-assert full-flag are two and the maximum number of reads required to de-assert full flag are six. The assertion and de-assertion latencies of Full Flag are given in Latency Table on page 15. Empty Flag Empty Flag (EF) LOW indicates that the queue accessed by RQSEL[2:0] is empty and its de-assertion depends on burst writes. Read operations are inhibited whenever EF is LOW, regardless of the state of REN. EF is synchronized to RCLK, i.e., it is exclusively updated by each rising edge of RCLK. In 2Q/4Q/8Q mode, EF indicates the status of the queue selected by RQSEL[2:0]. The assertion and de-assertion latencies of Empty Flag are given in Latency Table on page 15. Retransmit from Mark Operation The retransmit feature is useful for transferring packets of data repeatedly. It enables the receipt of data to be acknowledged by the receiver and retransmitted if necessary. Initiation of a retransmit operation (using RT pin) resets the internal read pointer to a physical location of the FIFO that is marked by the user (using the MARK pin). The retransmit feature can be used when two or more data words have been written to the queue. When the MARK pin is asserted, the memory location corresponding to valid data (DVal signal LOW) present on the output bus is marked. QVal[2:0] signals can be used to validate the queue for which the mark operation is being performed. A mark operation is mandated prior to initiating a retransmit operation for a queue. In this device the RT signal is validated with RQSEL[2:0], i.e., Retransmit function will be performed for the Queue that is selected by RQSEL[2:0]. With every valid read cycle after retransmit, previously accessed data is read until the queue becomes empty. Data written to the queue (Queue on which retransmit operation is being performed) after activation of RT are also transmitted. The full depth of the queue can be repeatedly retransmitted. Flags are governed by the relative locations of the read and write pointers and are updated during a retransmit cycle. Refer to the latency table for the associated flag update latencies after initiation of a retransmit cycle [4]. A retransmit operation should not be initiated when reads or writes are in progress. User should wait for four RCLK cycles after disabling reads before RT is asserted to ensure that the reads are completed. On initiation of RT the ‘marked’ location becomes the new Full Boundary. If user continues to write the data after initiation of a retransmit operation, FF will be asserted when this boundary is reached i.e. FF is asserted once the write pointer reaches the marked location.This prevents overwriting and data-loss. During RT reads the full boundary remains frozen to the marked location and is released when the FIFO becomes empty. i.e. FF remains LOW until the entire FIFO is read. Full flag is deasserted LFF_RELEASE cycles after the EF is asserted. Full boundary is also released on a reset operation (MRS) [4]. Refer to Latency Table on page 15 for more details. Programming Configuration Registers The CYF2072V has ten 8-bit user configurable registers. These registers are used to configure the number of queues & to set the Fast CLK Bit. These registers can be programmed in one of two ways: serial loading or parallel loading method. The loading method is selected using the SPI_SEN (Serial Enable) pin. A LOW on the SPI_SEN selects the serial method for writing into the registers whereas a HIGH on SPI_SEN selects parallel loading method. For serial programming, there is a separate SCLK and a Serial Input (SI). In parallel mode, the load (LD) pin is used to perform write and read operations on these registers. The write and read operations are performed in a sequence from the first location(0x1) to the last location (0xA) when the LD pin is held LOW. If LD is HIGH, the FIFO queues are written or read. Register values can be read through the parallel output port regardless of the programming mode selected (serial or parallel). Register values cannot be read serially. The configuration registers should be programmed only once after master reset to ensure accurate flag operation, regardless of whether serial or parallel programming is selected. See Table 4 on page 10 and Table 5 on page 11 for access to configuration registers in serial and parallel modes. In parallel mode, the read and write operations loop back when the maximum address location of the configuration registers is reached. Simultaneous read and write operations must be avoided on the configuration registers. Any change in configuration registers will take effect after eight write clock cycles (WCLK) cycles. Notes 4. Errata: Refer to Errata on page 30 for details on flag operation and full boundary freezing during mark and retransmit operation. Document Number: 001-68336 Rev. *G Page 8 of 32 CYF2018V CYF2036V CYF2072V Table 2. Configuration Registers ADDR Configuration Register Bit [7] Bit [6] Bit [5] Bit [4] Bit [3] Bit [2] Bit [1] Bit [0] Reserved 0x00 X X X X X X X X 0x2 Reserved 0x00 X X X X X X X X 0x3 Number of Queues 0x07 X X X X X D2 D1 D0 0x4 Reserved 0x7F X X X X X X X X 0x5 Reserved 0x00 X X X X X X X X 0x6 Reserved 0x00 X X X X X X X X 0x7 Reserved 0x7F X X X X X X X X 0x8 Reserved 0x00 X X X X X X X X 0x9 Reserved 0x00 X X X X X X X X 0xA Fast CLK Bit Register 1XXXXXXXb Fast CLK bit X X X X X X X 0x1 Default Table 3. Multi-Queue Configuration Operating Mode (given by configuration register 0x3 [7:0]) RQSEL[2:0]/WQSEL[2:0] Queue Number Selected 1Q mode (register 0x3[2:0] = 8’b0000 0000) 000 0 001–111 Invalid 000 0 2Q mode (register 0x3[2:0] = 8’b0000 0001) 4Q mode (register 0x3[2:0] = 8’b0000 001X) 8Q mode (register 0x3[2:0] = 8’b0000 01XX) Document Number: 001-68336 Rev. *G 001 1 010–111 invalid 000 0 001 1 010 2 011 3 100–111 invalid 000 0 001 1 010 2 011 3 100 4 101 5 110 6 111 7 Page 9 of 32 CYF2018V CYF2036V CYF2072V Table 4. Writing and Reading Configuration Registers in Parallel Mode SPI_SEN LD WEN REN WCLK RCLK SPI_SCLK 1 0 0 1 First rising edge because both LD and WEN are low X X Parallel write to first register 1 0 0 1 Second rising edge X X Parallel write to second register 1 0 0 1 Third rising edge X X Parallel write to third register 1 0 0 1 Fourth rising edge X X Parallel write to fourth register 1 0 0 1 X X 1 0 0 1 X X 1 0 0 1 X X 1 0 0 1 Tenth rising edge X X Parallel write to tenth register 1 0 0 1 Eleventh rising edge X X Parallel write to first register (roll back) 1 0 1 0 X First rising edge since both LD and REN are low X Parallel read from first register 1 0 1 0 X Second rising edge X Parallel read from second register 1 0 1 0 X Third rising edge X Parallel read from third register 1 0 1 0 X Fourth rising edge X Parallel read from fourth register 1 0 1 0 X X 1 0 1 0 X X 1 0 1 0 X X 1 0 1 0 X Tenth rising edge X Parallel read from tenth register 1 0 1 0 X Eleventh rising edge X Parallel read from first register (roll back) 1 X 1 1 X X X No operation X 1 0 X Rising edge X X Write to FIFO memory X 1 X 0 X Rising edge X Read from FIFO memory 0 0 X 1 X X X Illegal operation Document Number: 001-68336 Rev. *G Operation Page 10 of 32 CYF2018V CYF2036V CYF2072V Table 5. Writing into Configuration Registers in Serial Mode SPI_SEN LD WEN REN WCLK RCLK SCLK Operation 0 1 X X X X X 1 0 X Rising edge X X Parallel write to FIFO memory. X 1 X 0 X Rising edge X Parallel read from FIFO memory. 1 0 1 1 X X X This corresponds to parallel mode (refer to Table 4 on page 10). Rising edge Each rising of the SCLK clocks in one bit from the SI (Serial In). Any of the 10 registers can be addressed and written to, following the SPI protocol. Figure 2. Serial WRITE to Configuration Register Width Expansion Configuration The width of CYF2072V can be expanded to provide word widths greater than 36 bits. During width expansion mode, all control line inputs are common and all flags are available. Empty (Full) flags are created by ANDing the Empty (Full) flags of every FIFO. Document Number: 001-68336 Rev. *G This technique avoids reading data from or writing data to the FIFO that is “staggered” by one clock cycle due to the variations in skew between RCLK and WCLK. Figure 3 demonstrates an example of a 72 bit-word width by using two 36-bit word CYF2072Vs. Page 11 of 32 CYF2018V CYF2036V CYF2072V Figure 3. Using Two CYF2072Vs for Width Expansion DATAIN (D) 72 36 36 READ CLOCK (RCLK) WRITE CLOCK (WCLK) READ ENABLE (REN) WRITE ENABLE (WEN) OUTPUT ENABLE(OE) CYF2072V CYF2072V EF FF FF FF EF 36 The device becomes functional after VCC1, VCC2, VCCIO, and Vref attain minimum stable voltage required as given in Recommended DC Operating Conditions on page 14. The device can be accessed in tPU time after these supplies attain the minimum required level (see Switching Characteristics on page 17). There is no power sequencing required for the device. Read/Write Clock Requirements The read and write clocks must satisfy the following requirements: ■ Both read (RCLK) and write (WCLK) clocks should be free-running. ■ The clock frequency for both clocks should be between the minimum and maximum range given in Switching Characteristics on page 17. The RCLK to WCLK ratio should be in the range of 0.5 to 2. Document Number: 001-68336 Rev. *G DATAOUT (Q) 72 36 Power Up ■ EF For proper FIFO operation, the device must determine which of the input clocks – RCLK or WCLK – is faster. This is evaluated by using counters after the MRS cycle. The device uses two 9-bit counters inside (one running on RCLK and other on WCLK), which count 256 cycles of read and write clock after MRS. The clock of the counter which reaches its terminal count first is used as master clock inside the FIFO. When there is change in the relative frequency of RCLK and WCLK during normal operation of FIFO, user can specify it by using “Fast CLK bit” in the configuration register (0xA). “1” - indicates freq (WCLK) > freq (RCLK) “0” - indicates freq (WCLK) < freq (RCLK) The result of counter evaluated frequency is available in this register bit. User can override the counter evaluated frequency for faster clock by changing this bit. Whenever there is a change in this bit value, user must wait tPLL time before issuing the next read or write to FIFO. Page 12 of 32 CYF2018V CYF2036V CYF2072V JTAG operation CYF2XXXVXXL has two devices connected internally in a JTAG chain as shown in Figure 4. Figure 4. JTAG Operation Table 6 shows the IR register length and device ID. Table 6. JTAG IDCODES Device-1 Device-2 IR Register length 3 8 Device ID (HEX) “Ignore” 1E3261CF Bypass register length 1 1 For boundary scan, device-1 should be in bypass mode. Table 7 and Table 8 shows the JTAG instruction set for devices 1 and 2 respectively. Table 7. JTAG Instructions Device-1 BYPASS Opcode (Binary) 111 Table 8. JTAG Instructions Device-2 EXTEST HIGHZ SAMPLE/PRELOAD BYPASS IDCODE Opcode (HEX) 00 07 01 FF 0F Document Number: 001-68336 Rev. *G Page 13 of 32 CYF2018V CYF2036V CYF2072V Maximum Ratings I/O port supply voltage (VCCIO) ....................–0.3 V to 3.7 V Exceeding maximum ratings may impair the useful life of the device. These user guidelines are not tested. Storage temperature (without bias) ........ –65 C to +150 C Ambient temperature with power applied ......................................... –55 C to +125 C Core supply voltage 1 (VCC1) to ground potential .............................................–0.3 V to 2.5 V Core supply voltage 2 (VCC2) to ground potential ...........................................–0.3 V to 1.65 V Voltage applied to I/O pins ...........................–0.3 V to 3.75 V Output current into outputs (LOW) ............................. 20 mA Static discharge voltage (per MIL–STD–883, Method 3015) ......................... > 2001 V Operating Range Range Ambient Temperature –40 C to +85 C Industrial Latch-up current .................................................> 100 mA Recommended DC Operating Conditions Parameter [5] Min Typ Max Unit VCC1 Core supply voltage 1 Description 1.70 1.80 1.90 V VCC2 Core supply voltage 2 1.425 1.5 1.575 V VREF Reference voltage (irrespective of I/O standard used) 0.7 0.75 0.8 V VCCIO I/O supply voltage, read and write banks. LVCMOS33 3.00 3.30 3.60 V LVCMOS18 1.70 1.8 1.90 V Electrical Characteristics Parameter ICC Description Active current Min Typ Max Unit VCC1 = VCC1MAX Conditions – – 300 mA VCC2 = VCC2MAX, All I/O switching, 100 MHz – – 500 mA VCCIO = VCCIOMAX (All outputs disabled) – – 100 mA II Input pin leakage current VIN = VCCIOmax to 0 V –15 – 15 µA IOZ I/O pin leakage current VO = VCCIOmax to 0 V –15 – 15 µA CP Capacitance for TMS and TCK – – – 16 pF CPIO Capacitance for pins apart from TMS – and TCK – – 8 pF Note 5. Device operation guaranteed for a supply rate > 1 V / µs. Document Number: 001-68336 Rev. *G Page 14 of 32 CYF2018V CYF2036V CYF2072V I/O Characteristics I/O standard Nominal I/O supply voltage Input Voltage (V) Output voltage (V) Output Current (mA) VIL(max) VIH(min) VOL(max) VOH(min) IOL(max) IOH(max) LVCMOS33 3.3 V 0.80 2.20 0.45 2.40 24 24 LVCMOS18 1.8 V 30% VCCIO 65% VCCIO 0.45 VCCIO – 0.45 16 16 Latency Table Number of cycles [6] Latency Parameter Details LFF_ASSERT Max = 4 Last data write to FF going low LEF_ASSERT 0 Last data read to EF going low LRQSEL_CHANGE 1 Minimum RCLK cycles before RQSEL[2:0] can change LWQSEL_CHANGE 2 Minimum WCLK cycles before WQSEL[2:0] can change LMAILBOX 2 Latency from write port to read port when MB = 1 (w.r.t. WCLK) LREN_TO_DATA 4 Latency when REN is asserted low to first data output from FIFO LREN_TO_CONFIG 4 Latency when REN is asserted along with LD to first data read from configuration registers LFF_DEASSERT 7 Read to FF going high LRT_TO_REN 21 First RCLK posedge after RT goes low to initiation of reads by pulling REN low. Flags update within this period after initiation of a retransmit operation. LRT_TO_DATA Max = 25 First RCLK posedge after RT goes LOW to valid data on Q[35:0]. LIN Max = 35 Initial latency for data read after FIFO goes empty during simultaneous read/write LEF_DEASSERT Max = 32 Write to EF going high LFF_RELEASE[7] Max = 6 EF going low to FF de-assert during retransmit reads. Note 6. Latency mentioned in the latency table are applicable for clock ratio of 1. 7. Errata: Refer to errata section for details on flag operation & full boundary freezing during mark & retransmit operation. Document Number: 001-68336 Rev. *G Page 15 of 32 CYF2018V CYF2036V CYF2072V AC Test Load Conditions Figure 5. AC Test Load Conditions 30 0.9 V (a) VCCIO = 1.8 Volt 30 (b) VCCIO = 3.3 Volt (c) All Input Pulses Document Number: 001-68336 Rev. *G Page 16 of 32 CYF2018V CYF2036V CYF2072V Switching Characteristics Over the Operating Range Parameter -100 Description Min Max Unit tPU Power-up time after all supplies reach minimum value – 2 ms tS Clock cycle frequency 3.3 V LVCMOS 24 100 MHz tS Clock cycle frequency 1.8 V LVCMOS 24 100 MHz tA Data access time – 10 ns tCLK Clock cycle time 10 41.67 ns tCLKH Clock high time 4.5 – ns tCLKL Clock low time 4.5 – ns tDS Data setup time 3 – ns tDH Data hold time 3 – ns tQS RQSEL and WQSEL setup time 3 – ns tQH RQSEL and WQSEL hold time 3 – ns tENS Enable setup time 3 – ns tENH Enable hold time 3 – ns tENS_SI Setup time for SI and SEN in SPI mode 5 – ns tENH_SI Hold time for SI and SEN in SPI mode 5 – ns tRATE_SPI Frequency of SCLK – 25 MHz tRS Reset pulse width 100 – ns tPZS Port size select to MRS setup time 25 – ns tPZH MRS to port size select hold time 25 – ns tRSF Reset to flag output time – 50 ns tPRT Retransmit pulse width 5 – RCLK cycles tOLZ Output enable to output in Low Z 4 15 ns tOE Output enable to output valid – 15 ns tOHZ Output enable to output in High Z – 15 ns tWFF Write clock to FF – 9.5 ns tREF Read clock to EF – 9.5 ns tPLL Time required to synchronize PLL – 1024 cycles 100 – ns 8 – ns tRATE_JTAG JTAG TCK cycle time tS_JTAG Setup time for JTAG TMS,TDI tH_JTAG Hold time for JTAG TMS,TDI 8 – ns tCO_JTAG JTAG TCK low to TDO valid – 20 ns Document Number: 001-68336 Rev. *G Page 17 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms Figure 6. Write Cycle Timing tCLK tCLKH tCLKL WCLK tDS tDH D[35:0] tENH tENS WEN, IE NO OPERATION Figure 7. Read Cycle Timing tCLK RCLK tENS tENH REN NO OPERATION LREN_TO_DATA tA VALID DATA Q[35:0] tOLZ tOHZ OE DVal Figure 8. Reset Timing tRS MRS tRSF EF tRSF FF tRSF OE=1 Q[35:0] OE=0 Document Number: 001-68336 Rev. *G Page 18 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 9. MRS to PORTSZ[2:0] WCLK/RCLK MRS tPZS tPZH PORTSZ[2:0] Figure 10. Flow-through mailbox Operation WCLK D[35:0] REN / WEN 1 DO 2 3 D1 D2 D3 D4 L MAILBOX MB Q[35:0] QO Q1 Q2 Q3 Q4 DVal Document Number: 001-68336 Rev. *G Page 19 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 11. Configuration Register Write WCLK tENS WEN / IE LD tDH tDS D[35:0] config-reg 0 config-reg 1 config-reg 2 config-reg 3 config-reg 4 config-reg 5 Figure 12. Configuration Register Read WCLK /RCLK REN LREN_TO_CONFIG LD Q[35:0] Reg - 1 Figure 13. WQSEL to FF WCLK WQSEL[2:0] 0 FF for QUE-0 FF tQS Document Number: 001-68336 Rev. *G 1 2 FF for QUE-1 tWFF FF for QUE-2 3 4 FF for QUE-3 FF for QUE-4 5 FF for QUE-5 Page 20 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 14. RQSEL to EF 0 1 2 3 4 RCLK 0 RQSEL[2:0] 1 2 3 4 5 EF for QUE-1 L REN_TO_DATA EF 6 tQS EF for QUE-0 tREF 7 EF for QUE-3 EF for QUE-2 EF for QUE-5 EF for QUE-4 EF for QUE-6 Figure 15. Write to Empty Flag De-assertion 0 1 2 3 4 WCLK WEN D[35:0] D0 D1 LEF_DEASSERT EF EF for QUE-0 RCLK REN WQSEL[2:0]/ RQSEL[2:0] Document Number: 001-68336 Rev. *G 0 Page 21 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 16. Read to Empty Flag Assertion 0 1 2 RCLK REN Q0 Q[35:0] DVal QVal[2:0] 7 L REN_TO_DATA 7 0 EF for QUE-0 EF tREF WQSEL[2:0]/ RQSEL[2:0] 0 L FF_RELEASE 8 FF Figure 17. Full Flag Assertion WCLK WEN D[35:0] D 0 D 1 D 2 D x D LAST-1 D LAST NOT WRITTEN NOT WRITTEN FF tWFF WQSEL[2:0]/ RQSEL[2:0] 0 Note 8. Errata: Refer to Errata on page 30 for details on flag operation and full boundary freezing during Mark and Retransmit operation. Document Number: 001-68336 Rev. *G Page 22 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 18. Full Flag De-assertion WCLK WEN D[35:0] D LAST-4 D LAST-3 D LAST-2 D LAST-1 D LAST LFF_DEASSERT FF RCLK 2-6 READS REN WQSEL[2:0]/ RQSEL[2:0] 0 Figure 19. Switching between Queues - Write WCLK WEN 0 1 2 3 4 5 DATA for QUE-0 DATA for QUE-1 DATA for QUE-2 DATA for QUE-3 DATA for QUE-4 DATA for QUE-5 WQSEL[2:0] D[35:0] D0 D1 Document Number: 001-68336 Rev. *G D0 D1 D0 D1 D0 D1 D0 D1 D0 D1 Page 23 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 20. Switching between Queues - Read 1 2 3 4 5 RCLK 0 RQSEL[2:0] 1 2 3 4 5 6 QUE-0 DATA Q[35:0] Q0 7 QUE-2 DATA Q0 Q0 QUE-1 DATA DVal Q0 QUE-3 DATA QUE-6 DATA Q0 Q0 Q0 QUE-5 DATA tQS QVal[2:0] REN QUE-4 DATA Q0 0 1 2 3 4 5 6 L REN_TO_DATA Document Number: 001-68336 Rev. *G Page 24 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 21. Simultaneous Write & Read QUE - 0 WCLK WEN D[35:0] D 0 D 1 D 2 D 3 D N D N+1 D N+2 D N+3 RCLK REN L IN (initial latency) Q 0 Q[35:0] Q 1 Q 2 Q 3 DVal WQSEL[2:0]/ RQSEL[2:0] QVal[2:0] Document Number: 001-68336 Rev. *G 0 7 0 Page 25 of 32 CYF2018V CYF2036V CYF2072V Switching Waveforms (continued) Figure 22. Mark RCLK REN MARK RQSEL[2:0] Q[35:0] 0 Q (N-2) Q (N-1) Q (N) Q (N+1) Q (N+3) Q (N+2) Q (N+4) Q (N+5) Q (N+6) DATA MARKED IN QUE-0 DVal 0 QVal[2:0] 7 Figure 23. Retransmit RCLK REN tPRT LRT_TO_REN LRT_TO_DATA RT RQSEL[2:0] 0 Q (N+1) Q (N) Q[35:0] RETRANSMIT FROM DATA MARKED DVal QVal[2:0] All Flags 1 9 7 0 FLAGS UPDATED AFTER RT 9 Note 9. Errata: Refer to Errata on page 30 for details on flag operation and full boundary freezing during Mark and Retransmit operation. Document Number: 001-68336 Rev. *G Page 26 of 32 CYF2018V CYF2036V CYF2072V Ordering Information Speed (MHz) 100 Ordering Code CYF2072V33L-100BGXI Package Diagram Operating Range Package Type 51-85167 209-ball FBGA (14 × 22 × 1.76 mm) Industrial Ordering Code Definitions CY F X XXX VXX X - XXX BGXI Speed: 100 MHz I/O Standard: L = LVCMOS I/O Voltage: V18 = 1.8 V Density: 018 = 18 M 036 = 36 M 072 = 72 M V33 = 3.3 V 2 - Multi-Queue (8 queues) FIFO Cypress Document Number: 001-68336 Rev. *G Page 27 of 32 CYF2018V CYF2036V CYF2072V Package Diagram Figure 24. 209-ball FBGA (14 × 22 × 1.76 mm) BB209A Package Outline, 51-85167 51-85167 *C Document Number: 001-68336 Rev. *G Page 28 of 32 CYF2018V CYF2036V CYF2072V Acronyms Acronym Document Conventions Description Units of Measure EF Empty Flag FF Full Flag °C degree Celsius FIFO First In First Out MHz megahertz IE Input Enable A microampere I/O Input/Output mA milliampere FBGA Fine-Pitch Ball Grid Array mm millimeter ms millisecond ns nanosecond ohm Symbol Unit of Measure JTAG Joint Test Action Group LVCMOS Low Voltage Complementary Metal Oxide Semiconductor MB Mailbox pF picofarad MRS Master Reset V volt OE Output Enable W watt REN Read Enable RCLK Read Clock RQSEL Read Queue Select SCLK Serial Clock TDI Test Data In TDO Test Data Out TCK Test Clock TMS Test Mode Select WCLK Write Clock WEN Write Enable WQSEL Write Queue Select QUE-0 Queue Number 0 QUE-1 Queue Number 1 Document Number: 001-68336 Rev. *G Page 29 of 32 CYF2018V CYF2036V CYF2072V Errata This section describes the errata for the 18-Mbit, 36-Mbit, and 72-Mbit programmable FIFOs. Details include errata trigger conditions, scope of impact, available workaround, and silicon revision applicability. Contact your local Cypress Sales Representative or raise a technical support case at www.cypress.com/support if you have questions. Part Numbers Affected Part Number CYF0018V33L-133BGXI CYF0018V18L-133BGXI CYF0036V33L-133BGXI CYF0072V33L-133BGXI CYF0072V18L-133BGXI CYF2072V33L-100BGXI Device Characteristics 18-Mbit Programmable Single-Queue FIFOs (3.3-V LVCMOS) 18-Mbit Programmable Single-Queue FIFO (1.8-V LVCMOS) 36-Mbit Programmable Single-Queue FIFO (3.3-V LVCMOS) 72-Mbit Programmable Single-Queue FIFO (3.3-V LVCMOS) 72-Mbit Programmable Single-Queue FIFO (1.8-V LVCMOS) 72-Mbit Programmable Eight-Queue FIFO (3.3-V LVCMOS) 18-Mbit, 36-Mbit, and 72-Mbit Programmable FIFO Qualification Status Product Status: In Production 18-Mbit, 36-Mbit, and 72-Mbit Programmable FIFO Errata Summary This table defines the errata applicability to available 18-Mbit, 36-Mbit, and 72-Mbit Programmable FIFO family devices. An "X" indicates that the erratum pertains to the selected device. Note Errata items, in the following table, are hyperlinked. Click on any item entry to jump to its description. Items 1. Retransmit Issue Part Numbers Silicon Revision Fix Status CYF0018V, CYF0036V, CYF0072V, CYF2072V X Fix in progress. Fixed devices to be available from February 04, 2013 1. Retransmit Issue ■ Problem Definition Flag Failure during Retransmit cycles: Flags (PAE, HF, PAF, and FF) are not updated during a retransmit cycle. These flags do not recover on completion of retransmit cycles. The functionality of Empty Flag (EF) and Data Valid signal (DVal) remain intact throughout device operation. ■ Parameters Affected Because flags (PAE, HF, PAF, and FF) are not updated during a retransmit cycle, their associated latencies and timing parameters are not applicable. ■ Trigger Condition Initiation of a retransmit cycle using RT signal. ■ Scope of Impact On initiation of a retransmit cycle, flags (PAE, HF, PAF, and FF) may not accurately reflect FIFO status. Customer applications relying on these flags to keep track of number of words in the FIFO during retransmit may observe errors because these flags are not updated. The failure mandates a reset cycle (Partial Reset for Single queue and Master Reset for Multi queue devices) to ensure flag recovery after a retransmit cycle, that is, to restore flag functionality and resume normal FIFO operations after completion of retransmit cycles. ■ Workaround During retransmit cycles, there is no workaround to restore PAE, HF, PAF, and FF functionalities. After completion of retransmit cycles, a reset cycle (Partial Reset for Single queue and Master Reset for Multi queue devices) can be performed to restore PAE, HF, PAF, and FF functionalities for normal FIFO operation. ■ Fix Status The fix for the retransmit issue is in progress. In devices with the design fix, the intended flag functionality will be restored during retransmit cycles. Reset will not be mandatory after a retransmit cycle to resume normal FIFO operation. Fixed devices will be available from February 04, 2013. Document Number: 001-68336 Rev. *G Page 30 of 32 CYF2018V CYF2036V CYF2072V Document History Page Document Title: CYF2018V/CYF2036V/CYF2072V, 18/36/72-Mbit Programmable Multi-Queue FIFOs Document Number: 001-68336 Rev. ECN No. Orig. of Change Submission Date Description of Change ** 3209860 SIVS 03/30/2011 New data sheet. *A 3353401 AJU 08/26/2011 Updated Package Diagram. *B 3387127 AJU 09/28/2011 Updated Pin Diagram for CYF2XXXVXXL (Added Note 2 and referred the same note in DNU in ball U6). Updated Multi-Queue Operation (Updated Table 4 (WCLK column in first row)). Updated Recommended DC Operating Conditions (Added Note 5 and referred the same note in Parameter column). Updated Switching Waveforms (Removed the clock cycle numbers in Figure 10, Figure 14, Figure 15, Figure 16, and Figure 20). *C 3652368 ADMU 08/16/2012 Updated Pin Diagram for CYF2XXXVXXL (Updated Figure 1 (W9 ball marked as DNU)). Updated Figure 5. *D 3997615 ADMU 05/11/2013 Updated Package Diagram: spec 51-85167 – Changed revision from *B to *C. Added Errata. *E 4080484 ADMU 07/29/2013 Added Errata footnotes (Note 4, 7, 8, 9). Updated Pin Diagram for CYF2XXXVXXL: Added Note 1 and referred the same note in Figure 1. Updated Functional Description. Updated Logic Block Diagram. Updated Architecture. Updated Retransmit from Mark Operation: Added Note 4 and referred the same note in 3rd paragraph and 5th paragraph. Updated Programming Configuration Registers: Updated Table 2 (Changed value of Register 0x3 from “0x00” to “0x07” in the column “Default”). Updated Latency Table: Added Note 7 and referred the same note in the Latency parameter “LFF_RELEASE”. Updated Switching Waveforms: Updated Figure 14, Figure 15, Figure 16, Figure 18, Figure 21, Figure 22, Figure 23. Added Note 8 and referred the same note in “LFF_RELEASE” in Figure 16. Added Note 9 and referred the same note in “All Flags” and “FLAGS UPDATED AFTER RT” in Figure 23. Updated Ordering Information (Updated part numbers). Updated in new template. *F 4339515 ADMU 04/10/2014 No technical updates. Completing Sunset Review. *G 4581652 ADMU 11/25/2014 Added related documentation hyperlink in page 1. Document Number: 001-68336 Rev. *G Page 31 of 32 CYF2018V CYF2036V CYF2072V Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations. PSoC® Solutions Products Automotive Clocks & Buffers Interface Lighting & Power Control cypress.com/go/automotive cypress.com/go/clocks cypress.com/go/interface cypress.com/go/powerpsoc psoc.cypress.com/solutions PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP Cypress Developer Community Community | Forums | Blogs | Video | Training cypress.com/go/plc Memory PSoC Touch Sensing USB Controllers Wireless/RF cypress.com/go/memory cypress.com/go/psoc Technical Support cypress.com/go/support cypress.com/go/touch cypress.com/go/USB cypress.com/go/wireless © Cypress Semiconductor Corporation, 2011-2014. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress. Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. Document Number: 001-68336 Rev. *G Revised November 27, 2014 All products and company names mentioned in this document may be the trademarks of their respective holders. Page 32 of 32