M37640E8FP 데이터 시트보기 (PDF) - Mitsumi

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M37640E8FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Mitsumi 

Ver 1.4

MITSUBISHI MICROCOMPUTERS

7640 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

P1HATRSTB P2LATRSTB

DQ

DQ

DQ

DQ

PIN1 T R PIN2 T R PIN1 T R P2+ T R

RQ

DQ

S PIN1 T

RESETB

PadResetB

DQ

P2+ T

P2 Peripheral

P1 Peripheral

STP

Oscillator Countdown

Timer 1->2

RQ

STP S

Interrupt Request

I Flag

PadResetB

STP Delay

S

R QB

RQ

WIT S

RQ

P2LATRSTB

DQ

P2 Peripheral

STP S

T

DQ

PIN2 T

P1 Peripheral

P1HATRSTB

P2 Out

Φout

SQ

P1 Out

R

DQ

P2LATRSTB

P2

XOSCSTP

OSCSTP

CPMA5

XOD

XDOSCSTP

XCOSCSTP

CPMA4

XCOD

XCDOSCSTP

P2+ T

P1

P1HATRSTB

PIN1,PIN2

CPMB0 Slow Memory Wait

CPMB1

CPMB2

CCR7 o

CPMB3

RDY

P1+,P2+

LPF

XOSCSTP

XDOSCSTP

fXin

1/2

LPF fXCin

CPMA7

XCOSCSTP

FIN(FSC3)

XCDOSCSTP

fIN

Frequency Synthesizer

enable

fEXT CPMA6

1/2

fSYN

USB 48 MHz Clock

2 (Tw Phase)

Xin

Xout

XCin

XCout

FSC0

LPF

Fig. 1.92. Clock Block Diagram

MSB

7

L S Reserved Reserved Reserved

FIN

Reserved Reserved

FSE

LSB

0

Address: 006C16

Access: R/W

Reset: 6016

FSE

Bit 2,1

FIN

Bit 5,4

Bit 6

LS

Frequency Synthesizer Enable Bit (bit 0)

0: Disabled

1: Enabled

Reserved (Read/Write “0”)

Frequency Synthesiszer Input Selector Bit (bit 3)

0: Xin

1: XCin

Reserved (Read/Write “0”)

Reserved (Read/Write “1”)

Frequency Synthesizer Lock Status Bit (bit 7) (Read only; Write “0”)

0: Unlocked

1: Locked

Fig. 1.93. Frequency Synthesizer Control Register (FSC)

75

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