PIC18F1220/1320 Rev. B4 Silicon/Data Sheet Errata

PIC18F1220/1320
PIC18F1220/1320 Rev. B4 Silicon/Data Sheet Errata
The PIC18F1220/1320 Rev. B4 parts you have
received conform functionally to the Device Data Sheet
(DS39605C), except for the anomalies described
below.
All of the issues listed here will be addressed in future
revisions of the PIC18F1220/1320 silicon.
The following silicon errata apply only to
PIC18F1220/1320 devices with these Device/
Revision IDs:
2. Module: EUSART
The auto-baud measurement may not determine
the correct baud rate if the ABDEN bit is set while
the RB4/RX pin is low.
Work around
If the wake-up function is being used (WUE is set),
wait for the RB4/RX pin to go high following a
Break signal before setting the ABDEN bit.
Part Number
Device ID
Revision ID
PIC18F1220
00 0111 111
00100
If the wake-up function is not being used, ensure
that RB4/RX is Idle (high between bytes) before
setting the ABDEN bit.
PIC18F1320
00 0111 110
00100
Date Codes that pertain to this issue:
The Device IDs (DEVID1 and DEVID2) are located at
addresses 3FFFFEh:3FFFFFh in the device’s
configuration space. They are shown in hexadecimal
in the format “DEVID2 DEVID1”.
1. Module: Core (DAW Instruction)
The DAW instruction may improperly clear the
Carry bit (STATUS<0>) when executed.
All engineering and production devices.
3. Module: Data EEPROM
When writing to the data EEPROM, the contents of
the data EEPROM memory may not be written as
expected.
Work around
Work around
Either of two work arounds can be used:
Test the Carry bit state before executing the DAW
instruction. If the Carry bit is set, increment the
next higher byte to be added, using an instruction
such as INCFSZ (this instruction does not affect
any Status flags and will not overflow a BCD nibble). After the DAW instruction has been executed,
process the Carry bit normally (see Example 1).
1. Before beginning any writes to the data
EEPROM, enable the LVD (any voltage) and
wait for the internal voltage reference to
become stable. LVD interrupt requests may be
ignored. Once the LVD voltage reference is
stable, perform all EEPROM writes normally.
When writes have been completed, the LVD
may be disabled.
2. Configure the BOR as enabled (any voltage).
Select a threshold below VDD to allow normal
operation. If VDD is below the BOR threshold,
the device will be held in Brown-out Reset.
EXAMPLE 1:
PROCESSING THE CARRY
BIT DURING BCD ADDITIONS
MOVLW
ADDLW
0x80
0x80
; .80 (BCD)
; .80 (BCD)
BTFSC
INCFSZ
DAW
BTFSC
INCFSZ
STATUS, C
byte2
; test C
; inc next higher LSB
STATUS, C
byte2
; test C
; inc next higher LSB
Date Codes that pertain to this issue:
All engineering and production devices.
This is repeated for each DAW instruction.
Date Codes that pertain to this issue:
All engineering and production devices.
© 2005 Microchip Technology Inc.
DS80175E-page 1
PIC18F1220/1320
4. Module: EUSART
The auto-baud measurement may not determine the
correct baud rate if the resulting measurement could
overflow the SPBRG register when measuring slow
baud rates. In such cases, SPBRGH:SPBRG will
contain 0x00FF.
Work around
Either or both of the following work arounds may
be used:
1. Use a faster baud rate that can not result in
auto-baud measurements greater that 0x00FF.
2. Clear the BRGH bit (TXSTA<2>). This divides
the bit clock by 64 rather than dividing it by 16.
5. Module: Reset
It has been observed that in certain Reset conditions, including power-up, the first GOTO instruction
at address 0x0000 may not be executed. This
occurrence is rare and affects very few applications.
To determine if your system is affected, test a
statistically significant number of applications across
the operating temperature, voltage and frequency
ranges of the application. Affected systems will
repeatably fail normal testing. Systems not affected
will continue to not be affected over time.
Work around
Insert a NOP instruction at address 0x0000.
Date Codes that pertain to this issue:
Date Codes that pertain to this issue:
All engineering and production devices.
All engineering and production devices.
DS80175E-page 2
© 2005 Microchip Technology Inc.
PIC18F1220/1320
Clarifications/Corrections to the Data
Sheet
In the Device Data Sheet (DS39605C), the following
clarifications and corrections should be noted.
1. Module: CCP
In Section 14.0 “Timer3 Module”, bit 6 of the
T3CON register was incorrectly defined as
“unimplemented”. The correct definition for
T3CON<6> is T3CCP2 and is shown in bold
below:
REGISTER 14-1:
T3CON: TIMER3 CONTROL REGISTER
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
RD16
T3CCP2
T3CKPS1
T3CKPS0
T3CCP1
T3SYNC
TMR3CS
TMR3ON
bit 7
bit 6, 3
bit 0
T3CCP2:T3CCP1: Timer3 and Timer1 to CCP Enable bits
1x = Timer3 is the clock source for compare/capture CCP module
01 = Reserved
00 = Timer1 is the clock source for compare/capture CCP module
2. Module: Data EEPROM Memory
In Table 22-1 on page 254 of the Device Data
Sheet, the typical value for parameter D122, Data
EEPROM Erase/Write Cycle Time (TDEW) has
changed. The new value is 5.5 ms and is shown in
bold below.
TABLE 22-1:
MEMORY PROGRAMMING REQUIREMENTS
DC CHARACTERISTICS
Param
No.
D122
Sym
TDEW
Characteristic
Erase/Write Cycle Time
© 2005 Microchip Technology Inc.
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for industrial
Min
Typ†
Max
Units
—
5.5
—
ms
Conditions
DS80175E-page 3
PIC18F1220/1320
REVISION HISTORY
Rev A Document (12/2003)
First revision of this document, silicon issues 1 (Core),
2 (EUSART) and 3 (Data EEPROM) and Data Sheet
Clarification issues 1 (Internal RC Accuracy) and 2 (DC
Characteristics Table).
Rev B Document (2/2004)
Added silicon issue 4 (EUSART). Added Data Sheet
Clarification issue 3 (Timer1 Oscillator and In-Circuit
Serial Programming).
Rev C Document (4/2004)
Added Data Sheet Clarification issues 4
Characteristics) and 5 (LVD Characteristics).
(DC
Rev D Document (05/2005)
Added silicon issue 5 (Reset) and removed all Data
Sheet Clarification issues with the exception of former
issue 3 (Timer1 Oscillator and In-Circuit Serial
Programming™), now numbered issue 1 and added
issue 2 (CCP).
Rev E Document (08/2005)
Removed Data Sheet Clarification issue 1 and added
issue 2 (Data EEPROM Memory).
DS80175E-page 4
© 2005 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’s products as critical components in
life support systems is not authorized except with express
written approval by Microchip. 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, microID, MPLAB, PIC, PICmicro, PICSTART,
PRO MATE, PowerSmart, rfPIC, and SmartShunt are
registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries.
AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB,
PICMASTER, 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, dsPICDEM,
dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,
FanSense, FlexROM, fuzzyLAB, In-Circuit Serial
Programming, ICSP, ICEPIC, Linear Active Thermistor,
MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM,
PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo,
PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode,
Smart Serial, SmartTel, Total Endurance and WiperLock 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.
© 2005, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 quality system certification for
its worldwide headquarters, design and wafer fabrication facilities in
Chandler and Tempe, Arizona and Mountain View, California in
October 2003. The Company’s quality system processes and
procedures are for its PICmicro® 8-bit MCUs, 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.
© 2005 Microchip Technology Inc.
DS80175E-page 5
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://support.microchip.com
Web Address:
www.microchip.com
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
India - Bangalore
Tel: 91-80-2229-0061
Fax: 91-80-2229-0062
China - Beijing
Tel: 86-10-8528-2100
Fax: 86-10-8528-2104
India - New Delhi
Tel: 91-11-5160-8631
Fax: 91-11-5160-8632
Austria - Weis
Tel: 43-7242-2244-399
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
China - Chengdu
Tel: 86-28-8676-6200
Fax: 86-28-8676-6599
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
China - Fuzhou
Tel: 86-591-8750-3506
Fax: 86-591-8750-3521
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Atlanta
Alpharetta, GA
Tel: 770-640-0034
Fax: 770-640-0307
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
San Jose
Mountain View, CA
Tel: 650-215-1444
Fax: 650-961-0286
China - Qingdao
Tel: 86-532-502-7355
Fax: 86-532-502-7205
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
China - Shunde
Tel: 86-757-2839-5507
Fax: 86-757-2839-5571
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
China - Xian
Tel: 86-29-8833-7250
Fax: 86-29-8833-7256
Malaysia - Penang
Tel: 604-646-8870
Fax: 604-646-5086
Philippines - Manila
Tel: 011-632-634-9065
Fax: 011-632-634-9069
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-352-30-52
Fax: 34-91-352-11-47
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Taiwan - Hsinchu
Tel: 886-3-572-9526
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
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
07/01/05
DS80175E-page 6
© 2005 Microchip Technology Inc.