參數(shù)資料
型號(hào)： M34501E4FP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述： 單芯片4位微機(jī)的CMOS
文件頁(yè)數(shù)： 38/113頁(yè)
文件大?。?/td> 1252K
代理商： M34501E4FP
38
4501 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
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) ..............................................................................
Interrupt control register V1..................................................................................................
Interrupt control register V2..................................................................................................
Interrupt control register I1 ..................................................................................0
Timer 1 interrupt request flag (T1F) .....................................................................................
Timer 2 interrupt request flag (T2F) .....................................................................................
Watchdog timer flags (WDF1, WDF2)..................................................................................
Watchdog timer enable flag (WEF) ......................................................................................
Timer control register W1 .....................................................................................................
Timer control register W2 ....................................................................................0
Timer control register W6 .....................................................................................................
Clock control register MR .....................................................................................................
Key-on wakeup control register K1 ......................................................................................
Key-on wakeup control register K2 ......................................................................................
Pull-up control register PU0 ................................................................................0
Pull-up control register PU1 .................................................................................................
Pull-up control register PU2 .................................................................................................
A-D conversion completion flag (ADF).................................................................................
A-D control register Q1 .........................................................................................................
Carry flag (CY)......................................................................................................................
Register A ............................................................................................................0
Register B .............................................................................................................................
Register D .............................................................................................................................
Register E .............................................................................................................................
Register X .............................................................................................................................
Register Y .............................................................................................................................
Register Z .............................................................................................................................
Stack pointer (SP) ................................................................................................................
Oscillation clock .......................................................................... Ring oscillator (operating)
Ceramic resonator circuit ..................................................................................... Operating
RC oscillation circuit ......................................................................................................Stop
“
”
represents undefined.
Fig. 35 Internal state at reset
(2) Internal state at reset
Figure 35 shows internal state at reset (they are the same after sys-
tem is released from reset). The contents of timers, registers, flags
and RAM except shown in Figure 35 are undefined, so set the ini-
tial value to them.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
(Interrupt disabled)
(Interrupt disabled)
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(Prescaler and timer 1 stopped)
(Timer 2 stopped)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
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