20ll04da1 Pacer Components, 20ll04da1 Datasheet - Page 27

• Manufacturer Part Number: 20ll04da1
• Description: Vacuum Fluorescent Display Module
• Manufacturer: Pacer Components

2*20 VF Display Module
8.29 Turn Reversed Character Mode On/Off
8.30 Status Confirmation by DTR Signal
8.31 Execute Self-test
8.32 Start/End Macro Definition
ASCII Format
ASCII Format
ASCII Format
ASCII Format
Hex. Format
Hex. Format
Hex. Format
Hex. Format
Dec. Format
Dec. Format
Dec. Format
Dec. Format
Description
Description
Description
Description
the DTR signal does not change.
satisfied, if it is already SPACE when n = 0 is received, the DTR signal does not change:
& display enable). Therefore, if the printer is already selected, this command (three bytes) is ignored
and is processed as normal data. (The data is transmitted to the printer.)
control is executed immediately.
position.
processing starts with the first "<US> :" command and ends with the second "<US> : " command.
Macro definition processing is stopped, and any following data is processed as normal data. At this
time, the macro remains undefined.
<US> r n
31, 114, n
[1Fh] [72h] n
Selects or cancels reverse display of the characters received after this command.
<US> v n
31, 118, n
[1Fh] [76h] n
Sets the DTR signal in the host interface to the MARK or SPACE state.
When n = 01h or 31h, the DTR signal goes to the MARK state, if it is already in the MARK state,
When n = 00h or 30h, the DTR signal goes to the SPACE state if the following conditions are
This command is effective only when the display alone is selected by "<ESC> = 2" (printer disable
If any data is received during status confirmation using the DTR signal, normal interface timing
<US> @
31, 64
[1Fh] [40h]
A series of self-test is displayed. All set values except those listed below are initialized:
After completion of the self-test, the screen is cleared and the display position is moved to the home
<US> :
31, 58
[1Fh] [3Ah]
Starts or ends a macro definition.
Up to 80 bytes can be defined for macro processing (one byte per character). Macro definition
Receipt of either of the two types of data shown below is regarded as a macro definition error.
To delete a macro definition, send a "<US> : " command just after "<US> :".
* n = 00h or 30h, reverse characters are canceled.
* n = 01h or 31h, reverse characters are selected.
1) The "<US> ^" command is received during a macro processing definition.
2) A macro processing definition exceeds 80 bytes (except for the "<US> :" command).
1) The receive buffer is not in the buffer-full state.
2) The self-test is not being executed.
1) User-defined character definitions
2) Macro definitions
3) Time counter value
20LL04DA1 (Rev. 5.0)
Page 27 of 41