PIC18F2525-I/SO Microchip Technology, PIC18F2525-I/SO Datasheet
PIC18F2525-I/SO
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PIC18F2525-I/SO Summary of contents
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... PIC18F2525/2620/4525/4620 Rev. A4 Silicon Errata The PIC18F2525/2620/4525/4620 Rev. A4 parts you have received conform functionally to the Device Data Sheet (DS39626D), except for described below. Any Data Sheet Clarification issues related to the PIC18F2525/2620/4525/4620 will be reported in a separate Data Sheet errata. Please check the Microchip web site for any existing issues. ...
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... PIC18F2525/2620/4525/4620 2. Module: MSSP 2 After transfer is initiated, the SSPBUF register may be written for additional writes are blocked. The data transfer may be corrupted if SSPBUF is written during this time. The WCOL bit is set any time an SSPBUF write occurs during a transfer. Work around Avoid writing SSPBUF until the data transfer is complete, indicated by the setting of the SSPIF bit (PIR1< ...
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... None. Date Codes that pertain to this issue: All engineering and production devices. © 2008 Microchip Technology Inc. PIC18F2525/2620/4525/4620 8. Module: ECCP and CCP The CCP1 and CCP2 configured for PWM mode, with 1:1 Timer2 prescaler and duty cycle set to the period minus 1, may result in the PWM output(s) remaining at a logic low level ...
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... PIC18F2525/2620/4525/4620 10. Module: ECCP When the shutdown state of the PWM pin(s) is configured to tri-state the outputs, the device may consume higher than expected current during the shutdown event. Work around Configure the PWM output for either a high or low logic state during the shutdown PSSAC1:PSSAC0 (ECCP1AS< ...
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... TXREG. Date Codes that pertain to this issue: All engineering and production devices. © 2008 Microchip Technology Inc. PIC18F2525/2620/4525/4620 17. Module: Timer1/Timer3 When Timer1 or Timer3 is configured for the external clock source and the CCPxCON register is configured with 0x0B (Compare mode, trigger special event), the timer is not reset on a Special Event Trigger ...
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... PIC18F2525/2620/4525/4620 20. Module: Interrupts If an interrupt occurs during a two-cycle instruction that modifies the STATUS, BSR or WREG register, the unmodified value of the register will be saved to the corresponding Fast Return (Shadow) register and upon a fast return from the interrupt, the unmodified value will be restored to the STATUS, BSR or WREG register ...
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... MyLowISR _endasm } #pragma code /* return to default code section */ © 2008 Microchip Technology Inc. PIC18F2525/2620/4525/4620 directive instructs the compiler to not use the RETFIE FAST instruction. If the proper high priority interrupt bit is set in the IPRx register, then the interrupt is treated as high priority in spite of the pragma interruptlow directive ...
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... PIC18F2525/2620/4525/4620 An optimized C18 version is also provided in Example 4. This example illustrates how it reduces the instruction cycle count from 10 cycles to 3: EXAMPLE 4: #pragma code high_vector_section=0x8 void high_vector (void) { _asm CALL high_vector_branch, 1 _endasm } void high_vector_branch (void) { _asm POP GOTO high_isr _endasm } #pragma interrupt high_isr ...
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... Increase system clock speed to 40 MHz and adjust A/D settings accordingly. Higher system clock frequencies decrease offset error. Date Codes that pertain to this issue: All engineering and production devices. TABLE 2: A/D CONVERTER CHARACTERISTICS: PIC18F2525/2620/4525/4620 (INDUSTRIAL) Param Symbol Characteristic No. A06A E Offset Error ...
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... PIC18F2525/2620/4525/4620 25. Module: EUSART In Synchronous mode, EUSART baud rates using SPBRG values of ‘0’ and ‘1’ may not function correctly. Work around Use another baud rate configuration to generate the desired baud rate. Date Codes that pertain to this issue: All engineering and production devices. ...
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... SSPOV bit is clear before disabling the module. Date Codes that pertain to this issue: All engineering and production devices. © 2008 Microchip Technology Inc. PIC18F2525/2620/4525/4620 32. Module: MSSP (SPI Mode) When the SPI is using Timer2/2 as the clock source, a shorter than expected SCK pulse may occur on the first bit of the transmitted/received data (Figure 1) ...
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... PIC18F2525/2620/4525/4620 33. Module: EUSART In rare situations, one or more extra zero bytes have been observed in a packet transmitted by the module operating in asynchronous mode. The actual data is not lost or corrupted; only unwanted (extra) zero bytes are observed in the packet. This situation has only been observed when the ...
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... Date Codes that pertain to this issue: All engineering and production devices. © 2008 Microchip Technology Inc. PIC18F2525/2620/4525/4620 39. Module: MSSP In SPI mode, the SDO output may change after the inactive clock edge of the bit ‘0’ output. This may affect some SPI components that read data over 300 ns after the inactive edge of SCK ...
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... PIC18F2525/2620/4525/4620 41. Module: MSSP When the MSSP is configured for SPI mode, the Buffer Full Status bit, BF (SSPSTAT<0>), should not be polled in software to determine when the transfer is complete. Work around Copy the SSPSTAT register into a variable and perform the bit test on the variable. In Example 6, SSPSTAT is copied into the working register where the bit test is performed ...
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... Added issues 33-36 (EUSART), 37 (Timer1), 38-41 (MSSP) and 42 (Reset). Added Date Code information to new issues from revision B (issues 23-32). Rev D Document (2/2007) 2 Added issue 43 (MSSP (I C Slave). Rev E Document (3/2008) Added issue 44 (MSSP – SPI Slave). © 2008 Microchip Technology Inc. PIC18F2525/2620/4525/4620 DS80224E-page 15 ...
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... PIC18F2525/2620/4525/4620 NOTES: DS80224E-page 16 © 2008 Microchip Technology Inc. ...
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... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, 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. ...
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... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...