PIC24FJ128GA010 PIC24FJ128GA010 Family Rev. A4 Silicon Errata The PIC24FJ128GA010 family Rev. A4 parts you have received conform functionally to the Device Data Sheet (DS39747C), except for the anomalies described below. Any Data Sheet Clarification issues related to the PIC24FJ128GA010 Family will be reported in a separate Data Sheet errata. Please check the Microchip web site for any existing issues. 2. Module: JTAG The following silicon errata apply only to PIC24FJ128GA010 devices with these Device/ Revision IDs: Work around The current JTAG programming implementation is not compatible with third party programmers using SVF (Serial Vector Format) description language. JTAG boundary scan is supported by third party JTAG solutions and is not affected. PIC24FJ128GA010 040Dh 04h PIC24FJ96GA010 040Ch 04h Program devices with In-Circuit Serial Programming™. JTAG programming can be accomplished using custom JTAG software. The current implementation may not be supported in future PIC24F revisions. JTAG boundary scan is supported. PIC24FJ64GA010 040Bh 04h Date Codes that pertain to this issue: PIC24FJ128GA008 040Ah 04h All engineering and production devices. PIC24FJ96GA008 0409h 04h PIC24FJ64GA008 0408h 04h PIC24FJ128GA006 0407h 04h PIC24FJ96GA006 0406h 04h PIC24FJ64GA006 0405h 04h Part Number Device ID Revision ID The Device IDs (DEVID and DEVREV) are located at the last two implemented addresses in program memory. They are shown in hexadecimal in the format “DEVID DEVREV”. 1. Module: Core With Doze mode enabled, DOZEN (CLKDIV<11>) set, and the CPU Peripheral Clock Ratio Select bits (CLKDIV<14:12>) configured to any value except 0b000, writes to SFR locations can not be performed. Work around Disable Doze mode, or select 1:1 CPU peripheral clock ratio before modifying stated SFR locations, or avoid writing stated locations while Doze mode is enabled and CPU peripheral clock ratio other than 1:1 is selected. Configure the device prior to entering Doze mode and use the mode only to monitor applications activity. Date Codes that pertain to this issue: All engineering and production devices. 3 Module: PMP In Master mode (MODE<1:0> = 11 or 10), backto-back operations may cause the PMRD signal to not be generated. This limitation occurs when the peripheral is configured for zero wait states (WAITM<3:0> = 0000). Work around The PMRD signal will be generated correctly if a minimum of one instruction cycle delay is inserted between the back-to-back operations. A NOP instruction, or any other instruction, is adequate. Selecting a delay other than zero will also permit the PMRD signal to be generated. Date Codes that pertain to this issue: All engineering and production devices. 4. Module: Interrupts The device may not exit Doze mode if certain trap conditions occur. Address error, stack error and math error traps are affected. Oscillator failure and all interrupt sources are not affected and can cause the device to correctly exit Doze mode. Work around None. Date Codes that pertain to this issue: All engineering and production devices. © 2007 Microchip Technology Inc. DS80330A-page 1 PIC24FJ128GA010 5. Module: Output Compare The output compare module may output a single glitch for one TCY after the module is enabled (OCM<2:0> = 000). This issue occurs when the output state of the associated Data Latch register (LATx) is in the opposite state of the Output Compare mode when the peripheral is enabled. It can also occur when switching between two Output Compare modes with opposite output states. Work around If the output glitch must be avoided, verify that the associated data latch value of the OCx pin matches the initial state of the desired Output Compare mode. For example, if Output Compare 5 is configured for mode, OCM<2:0> = 001, ensure that the LATD<4> bit is clear prior to writing the OCM bits. The port latch output value will match the initial output state of the OC5 pin and avoid the glitch when the peripheral is enabled. 8. Module: UART UART1 and UART2 hardware flow control options are not available for the 64-pin variants of the PIC24FJ128GA010 product family. As a result, the UxCTS and UxRTS pins not available and the UEN<1:0> control bits are read as ‘0’ (unimplemented). UART2 hardware flow control is not available for the 80-pin PIC24FJ128GA010 variants. Therefore associated pins and bits are not available for these devices. Work around None. Date Codes that pertain to this issue: All engineering and production devices. 9. Module: UART Date Codes that pertain to this issue: When the UART is in High-Speed mode (BRGH = 1), the auto-baud sequence can calculate the baud rate as if it were in Low-Speed mode. All engineering and production devices. Work around 6. Module: UART The timing for transmitting a Sync Break has changed for this revision of silicon. The Sync Break is transmitted as soon as the UTXBRK bit is set. A dummy write to UxTXREG is still required and must be performed before the Sync Break has finished transmitting. Otherwise, the UxTX may be held in the active state until the write has occurred. Work around The calculated baud rate can be modified by the following equation: New BRG Value = (Auto-Baud BRG + 1) * 4 – 1 The user should verify baud rate error does not exceed application limits. Date Codes that pertain to this issue: All engineering and production devices. 10. Module: UART Set the UTXBRK bit when a Sync Break is required and perform a dummy UxTXREG immediately following. This sequence will avoid holding the UxTX pin in the active state. With the auto-baud feature selected, the Sync Break character (0x55) may be loaded into the FIFO as data. Date Codes that pertain to this issue: Work around All engineering and production devices. To prevent the Sync Break character from being loaded into the FIFO, load the UxBRG register with either 0x0000 or 0xFFFF prior to enabling the auto-baud feature (ABAUD = 1). 7. Module: UART When the UART is in High-Speed mode, BRGH (UxMODE<3>) is set, some optimal UxBRG values can cause reception to fail. Date Codes that pertain to this issue: All engineering and production devices. Work around Test UxBRG values in the application to find a UxBRG value that works consistently for more high-speed applications. User should verify that the UxBRG baud rate error does not exceed the application limits. Date Codes that pertain to this issue: All engineering and production devices. DS80330A-page 2 © 2007 Microchip Technology Inc. PIC24FJ128GA010 11. Module: A/D Gain error may be as high as 5 LSbs for external references (VREF+ and VREF-) and 6 LSbs for internal reference (AVDD and AVSS). Work around Determine gain error from a known reference voltage and compensate the A/D result in software. Date Codes that pertain to this issue: All engineering and production devices. 14. Module: SPI Master mode receptions using the SPI1 and SPI2 modules may not function correctly for bit rates above 8 Mbps if the master has the SMP bit (SPIxCON1<9>) cleared (master samples data at the middle of the serial clock period). In this case, the data transmitted by the slave is received, shifted right by one bit, by the master. For example, if the data transmitted by the slave was 0xAAAA, the data received by the master would be 0x5555 (0xAAAA shifted right by one bit). Work around 12. Module: A/D With the External Interrupt 0 (INT0) selected to start an A/D conversion (SSRC<2:0> = 001), the device may not wake-up from Sleep or Idle mode if more than one conversion is selected per interrupt (SMPI<3:0> <> 0000). Interrupts are generated correctly if the device is not in a Sleep or Idle mode. Work around Configure the A/D to generate an interrupt after every conversion (SMPI<3:0> = 0000). Use another wake-up source, such as the WDT or another interrupt source, to exit the Sleep or Idle mode. Alternatively, perform A/D conversions in Run mode. Date Codes that pertain to this issue: All engineering and production devices. 13. Module: SPI The Enhanced SPI modes, selected by setting the Enhanced Buffer Enable bit, SPIBEN (SPIxCON2<0>), are not available. Work around Users may set up the SPI module so that the bit rate is 8 Mbps or lower. Alternatively, the bit rate can be configured higher than 8 Mbps, but the SMP bit (SPIxCON1<9>) of the SPI master must be set (master samples data at the end of the serial clock period). Date Codes that pertain to this issue: All engineering and production devices. 15. Module: SPI A frame synchronization pulse may not be output in SPI Master mode if the pulse is selected to coincide with the first bit clock (SPIFE = 1). SCKx and SDOx waveforms are not affected. Work around Select the frame sychronization pulses to proceed the first bit clock (SPIFE = 0). The frame pulses will output correctly as described in the product data sheet. Date Codes that pertain to this issue: All engineering and production devices. Use Standard SPI mode by clearing the SPI Enhanced Buffer Enable bit, SPIBEN. Date Codes that pertain to this issue: All engineering and production devices. © 2007 Microchip Technology Inc. DS80330A-page 3 PIC24FJ128GA010 16. Module: SPI In SPI Slave mode (MSTEN = 0), with the slave select option enabled (SSEN = 1), the peripheral may accept transfers regardless of the SSx pin state. The received data in SSPxBUF will be accurate but not intended for the device. Work around If the Slave select option is required (e.g., device one of multiple SPI slave nodes on an SPI network), two potential work arounds exist: 1. Configure the port associated with SSx to an input and periodically read the PORT register. If the pin is read ‘0’, disable the SPI peripheral (SPIEN = 0). Enable the peripheral (SPIEN = 1) if the pin is read as a logic ‘1’. 2. Read the pin associated with SSx after a transfer is complete, indicated by the SPIxF bit being set. If the port pin is read as a digital ‘1’, read SSPxBUF and discard the contents. Date Codes that pertain to this issue: All engineering and production devices. 17. Module: Oscillator The Two-Speed Start-up feature may not be available on exit from Sleep mode with the IESO (Internal/External Switchover mode) enabled. Upon wake-up, the device will wait for the clock source used prior to entering Sleep mode to become ready. Work around None. Date Codes that pertain to this issue: All engineering and production devices. 18. Module: Core 19. Module: Core If a clock failure occurs when the device is in Idle mode, the oscillator failure trap does not vector to the Trap Service Routine. Instead, the device will simply wake-up from Idle mode and continue code execution if the Fail-Safe Clock Monitor (FSCM) is enabled. Work around Whenever the device wakes up from Idle (assuming the FSCM is enabled), the user software should check the status of the OSCFAIL bit (INTCON1<1>) to determine whether a clock failure occurred and then perform an appropriate clock switch operation. Date Codes that pertain to this issue: All engineering and production devices. 20. Module: Core On a Brown-out Reset, both the BOR and POR bits may be set. This may cause the Brown-out Reset condition to be indistinguishable from the Power-on Reset. Work around None. Date Codes that pertain to this issue: All engineering and production devices. 21. Module: Ports RC15 may output a digital ‘0’ after a Reset until the Configuration Word settings are processed. The duration of time for this effect is TRST which is nominally 20 µs. After the Configuration Word is processed, RC15 is put into its reset state as a digital input. Work around The CLKDIV register Reset value is incorrect. The register will reset with unimplemented bits equal to ‘1’ for all Resets. Connect components not adversely affected by a digital 0 signal to RC15. Work around Date Codes that pertain to this issue: Mask out unimplemented bits to maintain software compatibility with future device revisions. All engineering and production devices. Date Codes that pertain to this issue: All engineering and production devices. DS80330A-page 4 © 2007 Microchip Technology Inc. PIC24FJ128GA010 22. Module: I2C™ During I2C Slave mode transactions, the Data/ Address bit, D/A, may not update during the data frame. This affects both 7 and 10-Bit Addressing modes. I2C slave receptions are not affected by this issue. Work around Use the Read/Write bit, R/W, and the Transmit Buffer Full Status Bit, TBF, to determine whether address or data information is being received. For more information, see Figure 24-30 and Figure 24-31 in “Section 24. Inter-Integrated Circuit™ (I2C™)” (DS39702A). Date Codes that pertain to this issue: All engineering and production devices. 23. Module: I2C When the I2C module is operating in Slave mode, after the ACKSTAT bit is set when receiving a NACK from the master, it may be cleared by the reception of a Start or Stop bit. Work around Store the value of the ACKSTAT bit immediately after receiving a NACK from the master. Date Codes that pertain to this issue: All engineering and production devices. 24. Module: UART When an auto-baud is detected, the receive interrupt may occur twice. The first interrupt occurs at the beginning of the Start bit and the second after reception of the Sync field character. Work around If a receive interrupt occurs, check the URXDA bit (UxSTA<0>) to ensure that valid data is available. On the first interrupt, no data will be present. The second interrupt will have the Sync field character (55h) in the receive FIFO. 25. Module: UART The auto-baud may miscalculate for certain baud rates and clock speed combinations, resulting in a BRG value that is 1 greater or less than the expected value. When UxBRG is less than 50, this can result in transmission and reception failures due to introducing error greater than 1%. Work around Test auto-baud calculations at various clock speed and baud rate combinations that would be used in applications. If an inaccurate UxBRG value is generated, manually correct the baud rate in user code. Date Codes that pertain to this issue: All engineering and production devices. 26. Module: UART When the UART is in 4x mode (BRGH = 1) and using two Stop bits (STSEL = 1), it may sample the first Stop bit instead of the second one. This issue does not affect the other UART configurations. Work around Use the 16x baud rate option (BRGH = 0) and adjust the baud rate accordingly. Date Codes that pertain to this issue: All engineering and production devices. 27. Module: SPI In SPI Master mode, the Disable SCK Pin bit, DISSCK, may not disable the SPI clock. As a result, the PIC® microcontroller must provide the SPI clock in Master mode. Work around None. Date Codes that pertain to this issue: All engineering and production devices. Date Codes that pertain to this issue: All engineering and production devices. © 2007 Microchip Technology Inc. DS80330A-page 5 PIC24FJ128GA010 28. Module: Output Compare In PWM mode, the output compare module may miss a compare event when the current duty cycle register (OCxRS) value is 0x0000 (0% duty cycle) and the OCxRS register is updated with a value of 0x0001. The compare event is only missed the first time a value of 0x0001 is written to OCxRS and the PWM output remains low for one PWM period. Subsequent PWM high and low times occur as expected. Work around If the current OCxRS register value is 0x0000, avoid writing a value of 0x0001 to OCxRS. Instead, write a value of 0x0002. In this case, however, the duty cycle will be slightly different from the desired value. Date Codes that pertain to this issue: All engineering and production devices. 29. Module: RTCC The RTCC alarm repeat will generate an incorrect number of pin toggles. If the repeat count (x) is even, it will toggle the alarm pin ‘x’ times. If the repeat count is odd, one less than x toggles will be observed (x – 1). 30. Module: RTCC When performing writes to the ALCFGRPT register, some bits may become corrupted. The error occurs because of desynchronization between the CPU clock domain and the RTCC clock domain. The error causes data from the instruction following the ALCFGRPT instruction to overwrite the data in ALCFGRPT. Work around Always follow writes to the ALCFGRPT register with an additional write of the same data to a dummy location. These writes can be performed to RAM locations, W registers or unimplemented SFR space. The optimal way to perform the work around: 1. Read ALCFGRPT into a RAM location. 2. Modify the ALCFGRPT data, as required, in RAM. 3. Move the RAM value into ALCFGRPT and a dummy location in back-to-back instructions. Date Codes that pertain to this issue: All engineering and production devices. 31. Module: CRC Date Codes that pertain to this issue: If a CRC FIFO overflow occurs, the VWORD indicator will reset to ‘1’ instead of ‘0’. Further writes to the FIFO will cause the VWORD indicator to reset to ‘0’ after seven writes are performed. All engineering and production devices. Work around Work around None at this time. Poll the CRCFUL bit (CRCCON<7>) to ensure that no writes are performed on the FIFO when it is full. Date Codes that pertain to this issue: All engineering and production devices. DS80330A-page 6 © 2007 Microchip Technology Inc. PIC24FJ128GA010 32. Module: I/O Pins The I/O pin output, VOL, meets the specifications in Table 1 below: TABLE 1: DC CHARACTERISTICS: I/O PIN OUTPUT SPECIFICATIONS DC CHARACTERISTICS Param No. Sym VOL DO10 Note 1: Characteristic Standard Operating Conditions: 2.0V to 3.6V (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +85°C for Industrial Min Typ(1) Max Units Conditions Output Low Voltage All I/O Pins — — .55 V IOL = 8.5 mA, VDD = 3.6V — — .4 V IOL = 7.8 mA, VDD = 3.6V — — .55 V IOL = 6.0 mA, VDD = 2.0V — — .4 V IOL = 5.0 mA, VDD = 2.0V Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only and are not tested. Work around None. © 2007 Microchip Technology Inc. DS80330A-page 7 PIC24FJ128GA010 REVISION HISTORY Rev A Document (9/2007) Initial release of this document. Includes silicon issues 1 (Core), 2 (JTAG), 3 (PMP), 4 (Interrupts), 5 (Output Compare), 6-10 (UART), 11-12 (A/D), 13-16 (SPI), 17 (Oscillator), 18-20 (Core), 21 (Ports), 22-23 (I2C™), 24-26 (UART), 27 (SPI), 28 (Output Compare), 29-30 (RTCC), 31 (CRC) and 32 (I/O Pins). DS80330A-page 8 © 2007 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, KEELOQ logo, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, rfPIC and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Linear Active Thermistor, Migratable Memory, MXDEV, MXLAB, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2007, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. © 2007 Microchip Technology Inc. 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