GU180X32D-K610A4 Datasheet, PDF (3/7 Pages) List of Unclassifed Manufacturers – Dot Graphic VFD Module

Dot Graphic VFD Module
GU180x32D-K610A4
GU180x32D-K610A4 SETUP
The VFD module features two serial ports (synchronous & asynchronous) and a parallel port, all interfaces are TTL compatible. Interface
selection/set-up can be made using the single push button switch on the back of the module. Pressing the switch for the first time will display the
initial configuration menu. On each subsequent switch press the menu pointer will advance. The current menu item will be selected if the switch is
not pressed within 2 seconds.
To select the required interface, press the switch until the ‘COMMS’ item has been selected.
Wait 2 seconds for the communication menu to be displayed. Press the switch until the required
interface is selected. The factory default interface is SPI.
Wait another 2 seconds to display the related communication settings. The current configuration is
displayed first.
SYNCHRONOUS SERIAL COMMUNICATION
Interface selection example.
With synchronous communications enabled, data can be clocked into the VFD module using the rising or falling edge of SCK. This is selectable by
the push switch on the rear of the module, which also sets the data order. By default, data is clocked in on the rising edge with the most significant
bit sent first. The host must provide adequate delays for the module to process the data, these busy times are specified in the software command
section. Alternatively the host can monitor the MB (Module Busy) line.
I/O
I/O
HOST
I/O
SYSTEM
I/O
I/O
GND VDD ^I/O
SIN
SOUT
SCK
/SS
MB
/RES
GU180x32D-K610A4
VDD GND
>125ns
/SS
>65ns
SCK (RISING)
SCK (FALLING)
>125ns
tBUSY + 10us
>125ns
SIN (D7-D0)
D7
D6
D0
D7
D6
D0
SIN (D0-D7)
D0
D1
D7
The /SS pin can be used as an enable pin if other devices are
connected to the serial line, and also allows byte synchronisation.
The use of the /SS line is optional, and can be permanently pulled
low if required.
MB
<10us
TTL Synchronous serial communication.
D0
D1
D7
ASYNCHRONOUS SERIAL COMMUNICATION
The asynchronous communication speed and parity can be set with the push switch on the rear of the module, or with the ‘UART SETUP’
command. The default settings are 19200 baud with no parity. Again the host most provide adequate delays for the module to process the
command and data. The module busy line (MB) will go high when data is currently being processed.
<10us
tBUSY
HOST
SYSTEM
GND VDD
TXD
RXD
I/O
I/O
I/O
RXD
TXD
HB
MB
/RES
GU180x32D-K610A4
VDD GND
RXD
START
D0
D1
D2
D3
D4
D4
D5
D6
D7
PARITY STOP
MB
TTL Asynchronous serial communication from host system to VFD module.
>2us
TXD
START
D0
D1
D2
D3
D4
D4
D5
D6
D7
PARITY STOP
The host busy line (HB) stops the module from sending data to
the host until the line falls. The use of the HB and MB lines are
optional, and can be connected together if not required.
HB
TTL Asynchronous serial communication from VFD module to host system.
PARALLEL COMMUNICATION
The 8 I/O lines can be configured as a slow parallel interface. Data on PA0-7 is clocked into the module with the Enable line, this can be set to
either a rising or falling edge trigger by the push switch on the back of the module. The host must keep the data stable for the time period indicated
in the timing diagram. The module busy line (MB) can be used in parallel communication mode.
>125ns
HOST
I/O
SYSTEM
I/O
I/O
GND VDD
PA0-7
GU180x32D-K610A4
MB
ENABLE
VDD GND
ENABLE (RISING)
ENABLE (FALLING)
D0 - D7
>125ns
DATA
MB
<10us
Parallel Communication.
>250ns
tBUSY
NORITAKE ITRON VFD MODULES
GU180x32D-K610A4