Motorola MCU 68HC912D60 Manuel d'utilisateur

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MOTOROLA
SEMICONDUCTOR TECHNICAL INFORMATION
68HC912D60MSE4 Rev 2
March 14, 2001
When contacting a Motorola representative for assistance, please have the MCU
device mask set and date code information available.
Specifications and information herein are subject to change without notice.
© Motorola, Inc., 2000 MSE Published Date: March 14, 2001
Mask Set Errata 4
M68HC912D60 Microcontroller Unit
INTRODUCTION
This mask-set errata provides information pertaining to the following 68HC912D60
MCU mask set devices:
4F73K, available from January 1999.
Some items do not report bugs but only contain customer information.
MCU DEVICE MASK SET IDENTIFICATION
The mask set is identified by a four-character code consisting of a letter, two
numerical digits, and a letter, for example F74B. Slight variations to the mask set
identification code may result in an optional numerical digit preceding the standard
four-character code, for example 0F74B.
MCU DEVICE DATE CODES
Device markings indicate the week of manufacture and the mask set used. The
data is coded as four numerical digits where the first two digits indicate the year
and the last two digits indicate the work week. The date code “9115” would indicate
the 15th week of the year 1991.
MCU DEVICE PART NUMBER PREFIXES
Some MCU samples and devices are marked with an SC, PC, ZC or XC prefix. An
SC, PC or ZC prefix denotes special/custom device. An XC prefix denotes device
is tested but is not fully characterized or qualified over the full range of normal
manufacturing process variations. After full characterization and qualification,
devices will be marked with the MC prefix.
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Résumé du contenu

Page 1 - Mask Set Errata 4

MOTOROLASEMICONDUCTOR TECHNICAL INFORMATION68HC912D60MSE4 Rev 2March 14, 2001When contacting a Motorola representative for assistance, please have the

Page 2 - 2 68HC912D60MSE4 Rev 2

10 68HC912D60MSE4 Rev 2 March 14, 2001in LHM since no crystal oscillations will be detected. This situation can arise with short reset periods and/or

Page 3 - 68HC912D60MSE4 Rev 2 3

68HC912D60MSE4 Rev 2 11 March 14, 2001Lastly, an alternative and simpler approach is to just hold reset low for a substantial time (> 100 milliseco

Page 4 - 4 68HC912D60MSE4 Rev 2

12 68HC912D60MSE4 Rev 2 March 14, 2001Figure 2. Representation of unreliable start-up mode with slow crystalFigure 3. Representation of preferred mean

Page 5 - RESONATORS AR536

68HC912D60MSE4Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or

Page 6 - 6 68HC912D60MSE4 Rev 2

2 68HC912D60MSE4 Rev 2 March 14, 2001ATD: CONVERSION OF THE (VRH-VRL)/2 INTERNAL REF VOLTAGE RETURNS $7F, $80 OR $81 AR311The (VRH-VRL)/2 internal ref

Page 7 - 68HC912D60MSE4 Rev 2 7

68HC912D60MSE4 Rev 2 3 March 14, 2001BDM AR572When the BDM module is using synchronized XTAL/2 (CLKSW=0) as its reference clock and the PLL is providi

Page 8 - 8 68HC912D60MSE4 Rev 2

4 68HC912D60MSE4 Rev 2 March 14, 2001CGM: CRYSTAL START-UP WITHOUT DELAY AT CLOCK MONITOR RESETAR509When a clock monitor reset occurs, the crystal may

Page 9 - 68HC912D60MSE4 Rev 2 9

68HC912D60MSE4 Rev 2 5 March 14, 2001BRCLRRTIFLG,#RTIF,RTIFClr; RTIF flag is already clearLDAB#RTIF; if it’s set, clear the flag.STABRTIFLGRTIFClr:BRC

Page 10 - March 14, 2001

6 68HC912D60MSE4 Rev 2 March 14, 2001CGM: STOP DOES NOT TAKE TIME-OUT WHEN RESET CAUSES THE RELEASE AR431When coming out of STOP by using reset, the c

Page 11 - Ext Reset pin

68HC912D60MSE4 Rev 2 7 March 14, 2001INT: EDGE SENSITIVE IRQ DOES NOT WORK CORRECTLY DURING STOPAR528When using an edge sensitive IRQ signal to trigge

Page 12 - 12 68HC912D60MSE4 Rev 2

8 68HC912D60MSE4 Rev 2 March 14, 2001IOB: AR510Expanded mode operation causes an increase in bus driver shoot through current pin leakage which can ca

Page 13 - 68HC912D60MSE4

68HC912D60MSE4 Rev 2 9 March 14, 2001GPIO: FUNCTION CANNOT BE RE-ENABLED ON TX PIN IMMEDIATELYAR571The Tx pin cannot be changed to GPIO immediately. T

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