4518 Datasheet, PDF(60/160 Page) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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4518 Datasheet, PDF (60/160 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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4518 Group

â¢ Port output structure control register FR0 ......................................................0.......0......0......0..

â¢ Port output structure control register FR1 ......................................................0.......0......0......0..

â¢ Port output structure control register FR2 ......................................................0.......0......0......0..

â¢ Carry flag (CY) ....................................................................................................................0..

â¢ Register A ........................................................................................................0.......0......0......0..

â¢ Register B ........................................................................................................0.......0......0......0..

â¢ Register D ...............................................................................................................â......â......â..

â¢ Register E ...............................................................................â......â......â.......â......â.......â......â......â..

â¢ Register X ........................................................................................................0.......0......0......0..

â¢ Register Y ........................................................................................................0.......0......0......0..

â¢ Register Z .....................................................................................................................â......â..

â¢ Stack pointer (SP) ..................................................................................................1......1......1..

â¢ Operation source clock .......................................................... On-chip oscillator (operating)

â¢ Ceramic resonator circuit .............................................................................................. Stop

â¢ RC oscillation circuit ...................................................................................................... Stop

â¢ Quartz-crystal oscillation circuit .................................................................................... Stop

âââ represents undefined.

Fig. 50 Internal state at reset 2

Rev.3.01 2005.06.15 page 60 of 157

REJ03B0008-0301

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