MD-MT877/MD-MT877C

IC201 VHiLR378161-1 :Endec/Servo/Atrac (LR378161)

System LSI expansion output port

Pin No.

Port Name

Terminal Name

Input/Output

Function

Remarks

 

 

 

 

 

 

56*

EXPORT4

Undecided justice

Output

Not used

Not used

 

 

 

 

 

 

57

EXPORT5

LDCNT1

Output

Recording head raising-lowering control output 0.

See the separate table *3.

 

 

 

 

 

 

58

EXPORT6

LDCNT2

Output

Recording head raising-lowering control output 1.

See the separate table *3.

 

 

 

 

 

 

59

EXPORT7

EMPH1

Output

Audio emphasis control output 1.

See the separate table *2.

 

 

 

 

 

 

78

EXPORT3

HDON

Output

Recording head.

'H': Record electric current

 

 

 

 

 

 

79

EXPORT2

OPTCNT

Output

Optical digital input circuit ON/OFF control.

'H': Circuit operation ON

 

 

 

 

 

 

80

EXPORT0

DAPON

Output

D/A converter operation control output.

'H': Operation ON

 

 

 

 

 

 

81

EXPORT1

ADPON

Output

A/D converter operation control output.

'H': Operation ON

 

 

 

 

 

 

In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.

*1: List of TEST port settings

*2: List of EMPH port settings

*3: List of LDCNT port settings

TEST1

TEST0

Details

 

EMPH1

EMPH0

Details

 

LDCNT2

LDCNT1

Details

H

H

Normal mode

 

H

H

fs=32K: 'ON'

 

H

H

Brake

 

 

 

 

 

 

 

 

 

 

 

H

L

No adjustment mode

 

H

L

fs=48K: 'ON'

 

H

L

Drive UP

 

 

 

 

 

 

 

 

 

 

 

L

H

Test mode

 

L

H

OFF

 

L

H

Drive DOWN

 

 

 

 

 

 

 

 

 

 

 

L

L

(Settings prohibited)

 

L

L

fs=44.1K: 'ON'

 

L

L

Output OFF

 

 

 

 

 

 

 

 

 

 

 

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