CBM-230/231 User’s Manual

(25) Transmitting the status of the peripheral device (ESC u n)

Code : [1B]h + [75]h + n * {n = 0}

Transmits the current status of connector pin No.3.

"n" has the following meanings.

 

n (Hex)

Type

 

 

0

Drawer kick connector No. 3

 

The transmitted status is of 1 byte and its contents are shown in the table below.

When nothing is connected to the connector, The bit 0 of "n" is always "1".

In case of DTR/DSR control, only one byte is transmitted after confirming that the host is ready to receive (DSR signal is in Space mode). In case of XON/ XOFF control, only one byte is transmitted

without confirming the state of the DSR signal.

In case of DTR/DSR control, if the host is not ready to receive (DSR signal is in the Mark mode), it

waits to get ready to receive.

Bit

 

Function

 

Value

 

0

 

1

 

 

 

 

0

 

No. 3 pin's level

“L”

 

“H”

1

 

Undefined

 

 

 

2

 

Undefined

 

 

 

3

 

Undefined

 

 

 

4

 

Unused

Fixed to 0

 

5

 

Undefined

 

 

 

6

 

Undefined

 

 

 

7

 

Undefined

 

 

 

[Caution]

Serial interface only

 

 

 

42

CITIZEN

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