M34512M2 Datasheet, PDF (39/80 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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MITSUBISHI MICROCOMPUTERS
4512 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
• Program counter (PC) ..............................................................................0......0......0.......0......0... 0
Address 0 in page 0 is set to program counter.
• Interrupt enable flag (INTE) .................................................................................................. 0
• Power down flag (P) ............................................................................................................. 0
• External 0 interrupt request flag (EXF0) .............................................................................. 0
• External 1 interrupt request flag (EXF1) .............................................................................. 0
• Interrupt control register V1 ..................................................................................0.......0......0... 0
• Interrupt control register V2 ..................................................................................0.......0......0... 0
• Interrupt control register I1 ...................................................................................0.......0......0... 0
• Interrupt control register I2 ...................................................................................0.......0......0... 0
• Timer 1 interrupt request flag (T1F) ..................................................................................... 0
• Timer 2 interrupt request flag (T2F) ..................................................................................... 0
• Timer 3 interrupt request flag (T3F) ..................................................................................... 0
• Timer 4 interrupt request flag (T4F) ..................................................................................... 0
• Watchdog timer flags (WDF1, WDF2) .................................................................................. 0
• Watchdog timer enable flag (WEF) ...................................................................................... 0
• Timer control register W1 .....................................................................................0......0.......0... 0
• Timer control register W2 .....................................................................................0.......0......0... 0
• Timer control register W3 .....................................................................................0.......0......0... 0
• Timer control register W4 .....................................................................................0.......0......0... 0
• Clock control register MR .....................................................................................1.......0......0... 0
• Serial I/O transmission/reception completion flag (SIOF) ................................................... 0
• Serial I/O mode register J1 ..................................................................................0.......0......0... 0
• Serial I/O register SI ....................................................................!......!.......!......!......!.......!......!... !
• A-D conversion completion flag (ADF) ................................................................................. 0
• A-D control register Q1 .........................................................................................0......0.......0... 0
• A-D control register Q2 .........................................................................................0.......0......0... 0
• Successive comparison register AD ..............................!.......!......!......!.......!......!......!.......!......!... !
• Comparator register ....................................................................!.......!......!......!.......!......!......!... !
• Key-on wakeup control register K0 ......................................................................0.......0......0... 0
• Pull-up control register PU0 .................................................................................0......0.......0... 0
• Carry flag (CY) ...................................................................................................................... 0
• Register A .............................................................................................................0.......0......0... 0
• Register B .............................................................................................................0.......0......0... 0
• Register D ....................................................................................................................!......!... !
• Register E ....................................................................................!......!.......!......!......!.......!......!... !
• Register X .............................................................................................................0.......0......0... 0
• Register Y .............................................................................................................0.......0......0... 0
• Register Z ..........................................................................................................................!... !
• Stack pointer (SP) ......................................................................................................1.......1... 1
00000000
(Interrupt disabled)
(Interrupt disabled)
(Interrupt disabled)
(Prescaler and timer 1 stopped)
(Timer 2 stopped)
(Timer 3 stopped)
(Timer 4 stopped)
(External clock selected and serial
I/O port not selected)
Fig. 33 Internal state at reset
“!” represents undefined.
39