Document
N79E825A/824A/823A/822A Data Sheet
8-BIT MICROCONTROLLER
Table of Contents1 2 3 4 5 6 GENERAL DESCRIPTION .........................................................................................................4 FEATURES ....................................................................................................................... .......... 5 PARTS INFORMATION LIST .....................................................................................................6 3.1 Lead Free (RoHS) Parts information list.........................................................................6 PIN CONFIGURATION .............................................................................................................. .7 PIN DESCRIPTION................................................................................................................ ..... 8 FUNCTIONAL DESCRIPTION....................................................................................................9 6.1 On-Chip Flash EPROM ..................................................................................................9 6.2 I/O Ports...................................................................................................................... .... 9 6.3 Serial I/O ..................................................................................................................... .... 9 6.4 Timers ......................................................................................................................... .... 9 6.5 Interrupts..................................................................................................................... .... 9 6.6 Data Pointers ..................................................................................................................9 6.7 Architecture...................................................................................................................10
6.7.1 6.7.2 6.7.3 6.7.4 6.7.5 6.7.6 ALU ............................................................................................................................ ....10 Accumulator ................................................................................................................... 10 B Register..................................................................................................................... ..10 Program Status Word: .................................................................................................... 10 Scratch-pad RAM ........................................................................................................... 10 Stack Pointer .................................................................................................................. 11
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6.8 Power Management......................................................................................................11 MEMORY ORGANIZATION...............................................................................