49
4513/4514 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
Program counter (PC) ..........................................................................................................
Address 0 in page 0 is set to program counter.
Interrupt enable flag (INTE)..................................................................................................
Power down flag (P) .............................................................................................................
External 0 interrupt request flag (EXF0) ..............................................................................
External 1 interrupt request flag (EXF1) ..............................................................................
Interrupt control register V1..................................................................................................
Interrupt control register V2..................................................................................................
Interrupt control register I1 ...................................................................................................
Interrupt control register I2 ...................................................................................................
Timer 1 interrupt request flag (T1F) .....................................................................................
Timer 2 interrupt request flag (T2F) .....................................................................................
Timer 3 interrupt request flag (T3F) .....................................................................................
Timer 4 interrupt request flag (T4F) .....................................................................................
Watchdog timer flags (WDF1, WDF2)..................................................................................
Watchdog timer enable flag (WEF) ......................................................................................
Timer control register W1 .....................................................................................................
Timer control register W2 .....................................................................................................
Timer control register W3 .....................................................................................................
Timer control register W4 .....................................................................................................
Timer control register W6 .....................................................................................................
Clock control register MR .....................................................................................................
Serial I/O transmission/reception completion flag (SIOF) ...................................................
Serial I/O mode register J1 ..................................................................................................
Serial I/O register SI .............................................................................................................
A-D conversion completion flag (ADF).................................................................................
A-D control register Q1 .........................................................................................................
A-D control register Q2 .........................................................................................................
Voltage comparator control register Q3 ...............................................................................
Successive comparison register AD ....................................................................................
Comparator register..............................................................................................................
Key-on wakeup control register K0 ......................................................................................
Pull-up control register PU0 .................................................................................................
Direction register FR0 ..........................................................................................................
Carry flag (CY)......................................................................................................................
Register A .............................................................................................................................
Register B .............................................................................................................................
Register D .............................................................................................................................
Register E .............................................................................................................................
Register X .............................................................................................................................
Register Y .............................................................................................................................
Register Z .............................................................................................................................
Stack pointer (SP) ................................................................................................................
“
” represents undefined.
Fig. 35 Internal state at reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(Interrupt disabled)
0
0
0
0
0
0
0
0
0
0
0
0
(Interrupt disabled)
(Interrupt disabled)
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
(Prescaler and timer 1 stopped)
(Timer 2 stopped)
(Timer 3 stopped)
(Timer 4 stopped)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(Port P5: input mode)
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
(External clock selected and serial
I/O port not selected)