AT87C5103, AT83C5103

AT87C5103, AT83C5103
Active Errata List
• C51 Core – Bad Exit of Power-down in X2 Mode
Errata History
Lot Number
Errata List
All
1
Errata Descriptions
1. C51 Core – Bad Exit of Power-down in X2 Mode
When exiting power-down mode by interrupt while CPU is in X2 mode, it leads to
a bad execution of first instruction run when CPU restarts.
Workaround
Set the CPU in X1 mode just before entering power-down mode or add a ‘NOP’
instruction directly after the power-down sequence.
80C51 MCUs
AT87C5103
AT83C5103
Errata Sheet
Rev. 4258A–8051–06/03
1
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