PIC24FJ128GA310 Family Errata

PIC24FJ128GA310 FAMILY
PIC24FJ128GA310 Family
Silicon Errata and Data Sheet Clarification
The PIC24FJ128GA310 family devices that you have
received conform functionally to the current Device Data
Sheet (DS30009996G), except for the anomalies
described in this document.
The silicon issues discussed in the following pages are
for silicon revisions with the Device and Revision IDs
listed in Table 1. The silicon issues are summarized in
Table 2.
The errata described in this document will be addressed
in future revisions of the PIC24FJ128GA310 family
silicon.
Note:
This document summarizes all silicon
errata issues from all revisions of silicon,
previous as well as current. Only the
issues indicated in the last column of
Table 2 apply to the current silicon
revision (C0).
Data Sheet clarifications and corrections start on
Page 6, following the discussion of silicon issues.
The silicon revision level can be identified using the
current version of MPLAB® IDE and Microchip’s
programmers, debuggers and emulation tools, which
are available at the Microchip corporate web site
(www.microchip.com).
TABLE 1:
2.
3.
4.
Using the appropriate interface, connect the
device to the MPLAB ICD 2 programmer/
debugger or PICkit™ 3.
From the main menu in MPLAB IDE, select
Configure>Select Device, and then select the
target part number in the dialog box.
Select
the
MPLAB
hardware
tool
(Debugger>Select Tool).
Perform a “Connect” operation to the device
(Debugger>Connect). Depending on the development tool used, the part number and Device
Revision ID value appear in the Output window.
Note:
If you are unable to extract the silicon
revision level, please contact your local
Microchip sales office for assistance.
The DEVREV values for the various PIC24FJ128GA310 family silicon revisions are shown in Table 1.
Revision ID for
Silicon Revision(2)
Device ID(1)
PIC24FJ64GA306
46C0h
PIC24FJ64GA308
46C4h
PIC24FJ64GA310
46C8h
PIC24FJ128GA306
46C2h
PIC24FJ128GA308
46C6h
PIC24FJ128GA310
46CAh
2:
1.
SILICON DEVREV VALUES
Part Number
Note 1:
For example, to identify the silicon revision level using
MPLAB IDE in conjunction with MPLAB ICD 2 or
PICkit™ 3:
B2
C0
4
6
The Device IDs (DEVID and DEVREV) are located at the last two implemented addresses of configuration
memory space. They are shown in hexadecimal in the format, “DEVID DEVREV”.
Refer to the “PIC24FJXXXDA1/DA2/GB2/GA3/GC0 Families Flash Programming Specification”
(DS39970) for detailed information on Device and Revision IDs for your specific device.
 2011-2014 Microchip Technology Inc.
DS80000532G-page 1
PIC24FJ128GA310 FAMILY
TABLE 2:
SILICON ISSUE SUMMARY
Module
Feature
Item
Number
Affected
Revisions(1)
Issue Summary
B2
C0
A/D
Threshold
Detect
1.
Auto-scan feature may not trigger correctly in Sleep
mode.
X
A/D
Threshold
Detect
2.
In Auto-scan mode, the highest number A/D channel
may not cause an interrupt.
X
A/D
Accuracy
3.
Noise injection on A/D input pin during A/D operation
(when reading a high-impedance input).
X
X
Core
VBAT mode
4.
VBTBOR (CW3<7>) is not functional.
X
X
5.
During a Power-on Reset, the RTCC may be enabled.
X
6.
DNL will not meet data sheet specifications and possible
missing codes.
X
RTCC
A/D
—
DNL
Core
Deep Sleep
7.
IPD maximum numbers are higher than in the data sheet.
X
A/D
DMA PIA
Mode
8.
DMA with A/D in PIA mode will not work.
X
X
Reset
Low-Voltage/
Retention
Sleep
9.
POR and BOR bits may get set after Reset.
X
X
X
—
10.
Band gap input (VBG/2) is not functional.
X
Reset
VBAT and POR
11.
POR failure without proper voltage on VBAT pin.
X
LCD
SEG37
12.
LCD pin, SEG37, does not work on 80-pin devices.
X
X
Power-on
Reset
POR
13.
Power-on Reset is not getting reinitialized.
X
X
A/D
Note 1:
Only those issues indicated in the last column apply to the current silicon revision.
DS80000532G-page 2
 2011-2014 Microchip Technology Inc.
PIC24FJ128GA310 FAMILY
Silicon Errata Issues
Note:
Corrections are shown in bold. Where
possible, the original bold text formatting.
1. Module: A/D (Threshold Detect)
When the auto-scan feature of the Threshold
Detect is enabled (AD1CON5<15> = 1), automatic scan may fail when these conditions occur
together:
• The Device is in Sleep mode, and
• Timer1 is selected as the sample trigger clock
source (AD1CON1<7:4> = 0110).
Timer1 and other timers will function correctly as
sample triggers in other power-saving modes,
such as Idle mode.
Work around
Use INT0 to trigger the A/D in Sleep mode.
Affected Silicon Revisions
B2
C0
X
2. Module: A/D (Threshold Detect)
In Auto-Scan mode (AD1CON5<15> = 1), when
the Auto-Scan Interrupt mode bits are set to ‘11’
(AD1CON5<9:8> = 11), the highest number
channel selected for scanning in AD1CSSL, or
AD1CSSH, may not trigger an interrupt on a
valid comparison.
Work around
Add a dummy channel to the scanning
sequence. For example, when scanning AN0
and AN1, set AD1CSSL to 0x0007 or 0x8003, or
whatever is practical given the implementation.
Also, if the highest number channel needs to be
scanned, the AD1CHITH bit can be polled to
observe a valid comparison.
3. Module: A/D (Accuracy)
Noise injection on the A/D input pin during A/D
operation (when reading a high-impedance
input) may adversely affect the conversion
results.
Work around
Increase the sample time for the channel that is
being converted or reduce the source impedance.
Affected Silicon Revisions
B2
C0
X
X
4. Module: Core (VBAT Mode)
VBTBOR (CW3<7>) will not work correctly. The
behavior of this bit is different in Revision B2 and
C0.
In Revision B2, it does not matter if this bit
(CW3<7>) is ‘1’ or ‘0’, the feature will not work.
In Revision C0, the feature is available but may
not work correctly, so it is recommended to
maintain CW3<7> = 0 to disable the VBTBOR.
If the bit is maintained as ‘1’, the RTCC may be
reset above VBT voltage (1.6V).
Work around
The application can monitor the VBAT voltage
using ADC after a POR in VBAT mode. The ADC
is internally connected to VBAT to measure
VBAT/2 (CH0SB<4:0>= 11111).
The VBAT can be monitored using ADC, and if
the VBAT has gone below VBT (1.6V), RTCC
needs to be reconfigured with the correct date
and time.
Affected Silicon Revisions
B2
C0
X
X
Affected Silicon Revisions
B2
C0
X
 2011-2014 Microchip Technology Inc.
DS80000532G-page 3
PIC24FJ128GA310 FAMILY
5. Module: RTCC
After a POR, execute the code shown in
Example 1 to disable the RTCC.
During a Power-on Reset, the RTCC may be
enabled.
Affected Silicon Revisions
Work around
B2
To ensure that the RTCC is not enabled, make
sure to clear the RTCEN bit after a POR. This is
recommended whether RTCC is used or not.
EXAMPLE 1:
C0
X
DISABLING THE RTCC FOLLOWING POR
MOV
#NVMKEY,
W1
MOV
#0x55,
W2
MOV
W2,
[W1]
MOV
#0xAA,
W3
MOV
W3,
[W1]
BSET
RCFGCAL,
#13
RCFGCALbits.RTCEN=0;
;move the address of NVMKEY into W1
;start 55/AA sequence
;set the RTCWREN bit
6. Module: A/D
8. Module: A/D
The DNL will not meet the data sheet specification; the DNL will be 1.5. There may be possible
missing codes in 12-bit mode in locations: 511,
1023, 1535, 2047, 2559, 3071, 3583.
The A/D will not work with DMA in PIA mode.
Work around
Affected Silicon Revisions
None.
None.
B2
Affected Silicon Revisions
B2
Work around
C0
X
C0
X
9. Module: Reset
7. Module: Core (Deep Sleep)
The IPD maximum number for Deep Sleep may
not meet the data sheet specification (DC70).
The maximum value for Deep Sleep at 3.3V will
be 6 µA.
When the device is in Low-Voltage/Retention
Sleep (Sleep with CW1<10> = 0 and RETEN = 1),
if a Master Clear Reset is given, the POR
(RCON<0>) and BOR (RCON<1>) bits may get
set after the Reset.
Work around
None.
Use registers, such as DSGPR0 or DSGPR1, to
indicate the device was in Low-Voltage/Retention
Sleep before the MCLR Reset is given.
Affected Silicon Revisions
Affected Silicon Revisions
Work around
B2
C0
B2
C0
X
X
X
X
DS80000532G-page 4
 2011-2014 Microchip Technology Inc.
PIC24FJ128GA310 FAMILY
10. Module: A/D
The internal VBG/2 input channel is not
functional. When this input is selected as the
channel to be converted, no conversion will
occur and a device Reset will occur.
Work around
12. Module: LCD
LCD segment, SEG37, will not function as an
LCD segment pin. The issue only exists on the
80-pin devices (PIC24FJ128GA308 and
PIC24FJ64GA308). The SEG37 pin works
correctly on 100-pin devices.
Work around
None.
Affected Silicon Revisions
B2
C0
X
X
None.
Affected Silicon Revisions
B2
C0
X
X
11. Module: Reset (VBAT and POR)
For applications that use the VBAT feature, the
device may fail to start/restart on POR if VBAT
voltage is below 1.2V.
Work around
If the VBAT mode features will be used in the
application, ensure that a VBAT source of at least
1.2V is always connected to the VBAT pin.
If the VBAT mode features are not to be used,
always connect the VBAT pin to VDD, as
recommended in the data sheet.
Affected Silicon Revisions
B2
C0
X
13. Module: Power-on Reset
When the device is operating with Brown-out
Reset (BOR) disabled, it is recommended to
follow the data sheet specification of starting the
VDD from VSS to ensure an internal Power-on
Reset. Failing to do so may result in the device
failing to start up or other unexpected behavior.
Work around
There are three work arounds to resolve the
issue:
1. Enable the BOR to ensure that the device
gets a proper Power-on Reset.
2. If the BOR cannot be enabled, always start
the VDD from VSS to ensure a proper Poweron Reset (Parameter No. DC16 in Table 32-3
of Section 32.0 “Electrical Characteristics”
in the data sheet).
3. Use an external voltage supervisor chip on
the MCLR pin to hold the MCLR low when
the power supply voltage is between 1.4V
and 2.0V. Release MCLR after the VDD is in
the operating range.
Affected Silicon Revisions
 2011-2014 Microchip Technology Inc.
B2
C0
X
X
DS80000532G-page 5
PIC24FJ128GA310 FAMILY
Data Sheet Clarifications
The following typographic corrections and clarifications
are to be noted for the latest version of the device data
sheet (DS30009996G):
Note:
Corrections are shown in bold. Where
possible, the original bold text formatting
has been removed for clarity.
None.
DS80000532G-page 6
 2011-2014 Microchip Technology Inc.
PIC24FJ128GA310 FAMILY
APPENDIX A:
DOCUMENT
REVISION HISTORY
Rev A Document (11/2011)
Initial release of this document. Includes silicon issues 1
(A/D Conversion During Sleep), 2 (A/D Auto-Scan
Mode), 3 (A/D Accuracy), 4 (VBTBOR) and 5 (RTCC).
Added data sheet clarification 1 (Section 22.0 Real
Time Clock and Calendar).
Rev B Document (4/2012)
Included changes to silicon issue 1 (A/D Conversion
During Sleep) and added silicon issues 8 (A/D) and
9 (Reset), and added data sheet clarifications
2 (Special Features), 3 (Special Features), 4 (Special
Features), 5 (Timer1), 6 (Pin Diagrams), 7 (Pin Diagrams), 8 (Guidelines for Getting Started with 16-Bit
Microcontrollers), 9 (Memory Organization), 10 (I/O
Ports), 11 (Memory Organization), 12 (I/O Ports),
13 (Electrical Characteristics), 14 (Electrical Characteristics), 15 (12-Bit A/D Converter with Threshold
Scan), 16 (Real-Time Clock and Calendar – RTCC)
and 17 (A/D Converter).
Rev E Document (2/2013)
Indicated that silicon issue 7 is also applicable to silicon
revision C0.
Added data sheet clarification 31 (Power-Saving
Features).
Rev F Document (10/2013)
Added silicon issue 12 (LCD).
Rev G Document (6/2014)
Updated silicon issue 4 (Core, VBAT mode) with
information regarding VBTBOR in Revision B2 and
Revision C0. Added silicon issue 13 (Power-on Reset).
Removed all previous data sheet clarifications that
have been addressed in the latest data sheet revision.
Rev C Document (7/2012)
Added silicon revision C0 to document, with existing
silicon issues 3 (A/D, Accuracy) and 9 (Reset).
Added new silicon issues 10 (A/D) and 11 (Reset, VBAT
and POR) to silicon revision B2. Issue 10 is also added
to silicon revision C0.
Added data sheet clarifications 18-19 (A/D), 2021 (Memory Organization), 22-24 (Oscillator) and
25 (Power-Saving Features).
Corrected the titles of several existing silicon issues (1,
2, 3, 4, 7 and 8) for compatibility with existing errata
documentation. No changes are made to the text of any
issues.
Updated the title of data sheet clarification 8 (“Getting
Started with 16-bit Microcontrollers”) to “Overview”.
Updated several data sheet clarification issues (3, 4, 13
and 17) to remove extraneous tables, rows and other
information not relevant to the items being changed.
Other minor typographic corrections throughout.
Rev D Document (1/2013)
In silicon issue 7 (Core (Deep Sleep)), changed the
maximum value for Deep Sleep at 3.3V from 2.5 A to
6 A.
Added data sheet clarifications 26 (Power-Saving
Features, 27 (Oscillator Configuration), 28 (Packaging
Information), 29 (Serial Peripheral Interface (SPI)) and
30 (I/O Ports).
 2011-2014 Microchip Technology Inc.
DS80000532G-page 7
PIC24FJ128GA310 FAMILY
NOTES:
DS80000532G-page 8
 2011-2014 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
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OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
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intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
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PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash
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Company are registered trademarks of Microchip Technology
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Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
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Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
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SQTP is a service mark of Microchip Technology Incorporated
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All other trademarks mentioned herein are property of their
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© 2011-2014, Microchip Technology Incorporated, Printed in
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Printed on recycled paper.
ISBN: 978-1-63276-300-6
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CERTIFIED BY DNV
== ISO/TS 16949 ==
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are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
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DS80000532G-page 9
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