M34282M1-XXXGP View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

Manufacturer

M34282M1-XXXGP

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

4282 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

V11

CARRY 0

1

V10 (Note 1)

0

1

Timer 1 (8)

(TAB1)

Reload register R1 (8)

(T1AB)(Note 2)

Register B Register A

(TAB1)

SNZT1 instruction

T1F

Timer 1 underflow signal

(to port CARR)

Register B Register A

(T2HAB)

Reload register R2H (8)

V23

Reload control circuit

V20 (Note 1)

V21

0

XIN

0

Timer 2(8)

TQ

1

1/2

1

R SNZT2

CARRYD

(to port CARR)

(Note 3) (T2R2L)

instruction

(T2AB)

V22

Reload register R2L (8)

TT22FF

(TAB2)

(T2AB)

(TAB2)

Register B Register A

CAR flag

SCAR instruction S Q

RCAR instruction R

Timer 1 underflow signal

V12

CARRY

(to timer 1)

Port CARR

DQ

TR

V10

Carrier wave output control signal

Frequency divider

(divided by 8)

XIN

CCK instruction

Initializing signal

(Note 3)

S Q Synchronous

R

circuit

Initializing signal (Note 4)

STCK (System clock)

Frequency divider

(divided by 4)

INSTCK

(Instruction clock)

INSTCK

14-bit timer (WDT)

0

5

13

WDF1 WDF2

System reset

WRST instruction

Initializing signal

(Note 4)

Fig. 13 Timers structure

Notes 1: Counting is stopped by clearing to “0.”

2: When the T1AB instruction is executed after V1 0 is set to “1,”

writing is performed only to reload register R1.

3: The data of reload register R2L set with the T2AB instruction

can be also written to timer 2 with the T2R2L instruction.

4: The initializing signal is output at reset or RAM back-up mode.

MITSUBISHI

ELECTRIC

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