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PIC18F4585-E/ML 其他数据使用手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
QFN-44
描述:
PIC18F4585-E/ML 管装
Pictures:
3D模型
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PIC18F4585-E/ML数据手册
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© 2007 Microchip Technology Inc. DS80283E-page 1
PIC18F2585/2680/4585/4680
The PIC18F2585/2680/4585/4680 Rev. A3 parts you
have received conform functionally to the Device Data
Sheet (DS39625C), except for the anomalies
described below. Any Data Sheet Clarification issues
related to the PIC18F2585/2680/4585/4680 will be
reported in a separate Data Sheet errata. Please check
the Microchip web site for any existing issues.
All of the issues listed here will be addressed in future
revisions of the PIC18F2585/2680/4585/4680 silicon.
The following silicon errata apply only to
PIC18F2585/2680/4585/4680 devices with these
Device/Revision IDs:
1. Module: ECCP
When monitoring a shutdown condition using a bit
test on the ECCPASE bit (ECCP1AS<7>) or
performing a bit operation on the ECCPASE bit,
the device may produce unexpected results.
Work around
Before performing a bit test or bit operation on the
ECCPASE bit, copy the ECCP1AS register to the
working register and perform the test or operation
there.
By avoiding these operations on the ECCPASE bit
in the ECCP1AS register, the module will operate
normally.
In Example 1, ECCPASE bit operations are
performed on the W register.
EXAMPLE 1:
Date Codes that pertain to this issue:
All engineering and production devices.
2. Module: ECCP
When a shutdown condition occurs, the output port
is made inactive for the duration of the event. After
the event that caused the shutdown ends, the
ECCP module immediately enables the PWM
output and does not wait until the beginning of the
next PWM cycle.
Work around
Disable the auto-restart feature in software, polling
the Timer2 Interrupt Flag (TMR2IF) and do not
clear the ECCPASE bit until TMR2IF is set.
Date Codes that pertain to this issue:
All engineering and production devices.
3. Module: ECCP
ECCP1 configured for auto-shutdown with
Comparator 1 corrupts the PWM duty cycle pulse.
In addition, it does not consistently synchronize
the pulse to the beginning of the period, and the
end of the pulse can occur at any time within the
period.
Work around
None.
Date Codes that pertain to this issue:
All engineering and production devices.
4. Module: ECCP
The auto-shutdown event will cause the ECCP
pins (P1A, P1B, P1C, P1D) to draw higher current
than expected. This occurs when the ECCPAS1 or
ECCPAS0 bits are set and an auto-shutdown
event occurs.
Work around
None.
Date Codes that pertain to this issue:
All engineering and production devices.
Part Number Device ID Revision ID
PIC18F2585 0001 1010 100 0 0100
PIC18F2680 0001 1010 110 0 0100
PIC18F4585 0001 1010 101 0 0100
PIC18F4680 0001 1010 111 0 0100
The Device IDs (DEVID1 and DEVID2) are located at
addresses 3FFFFEh:3FFFFFh in the device’s
configuration space. They are shown in binary in the
format “DEVID2 DEVID1”.
MOVF ECCP1AS, W
BTFSC WREG, ECCPASE
BRA SHUTDOWN_ROUTINE
PIC18F2585/2680/4585/4680 Rev. A3 Silicon Errata
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