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EAEVALEDIP128B Arkusz danych(PDF) 4 Page - List of Unclassifed Manufacturers

Numer części EAEVALEDIP128B
Szczegółowy opis  OPERATING UNIT 128x64 with touch panel
PDF  29 Pages
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Producent  ETC2 [List of Unclassifed Manufacturers]
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EAEVALEDIP128B Arkusz danych(HTML) 4 Page - List of Unclassifed Manufacturers

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EAeDIP128-6
Page 4
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical
errors
reserved.
Baud Rates
Baud0 Baud1 Baud2
data format
8,N,1
1
0
0
2400
0
1
0
4800
1
1
0
9600
0
0
1
19200
1
0
1
38400
0
1
1
57600
1
1
1
115200
0
0
0
230400
Pinout eDIP128-6: RS-232/RS-485 mode
Pin Symbol In/Out Function
Pin
Symbol
In/Out Function
1
GND
Ground Potential for logic (0V)
17
DPROT
In
L: Disable Smallprotokoll
do not connect for normal operation
2
VDD
Power supply for logic (+3,3V..5V)
18
PWR
Out
L: Normal Operation
H: Powerdownmode
3
NC
do not connect
19
NC
do not connect
4
NC
do not connect
20
TEST
SBUF
In
Out
open-drain with internal pullup 20k..50k
IN (Power-On) L: Testmode
OUT L: data in sendbuffer
5
RESET
In
L: Reset
21
GND
Ground (0V)
6
BAUD0
In
Baud Rate 0
22
VDD
Power supply (+3,3..5V)
7
BAUD1
In
Baud Rate 1
23
NC
do not connect
8
BAUD2
In
Baud Rate 2
24
NC
do not connect
9
ADR0
In
Address 0 for RS-485
25
IN8/OUT1
8 digital inputs
(internal 20k..50k pullup)
alternativ up to 8 digital outputs
maximum current:
IOL = IOH = 10mA
10
RxD
In
Receive Data
26
IN7/OUT2
11
TxD
Out
Transmit Data
27
IN6/OUT3
12
EN485
Out
Transmit Enable for RS-485 driver
28
IN5/OUT4
13
WUP
In
L: (Power-On) disable Power-On-Macro
L: Wakeup from Powerdownmode
29
IN4/OUT5
14
ADR1
In
Address 1 for RS-485
30
IN3/OUT6
15
ADR2
In
Address 2 for RS-485
31
IN2/OUT7
16
BUZZ
Out
Buzzer output
32
IN1/OUT8
Application note
RS-232 INTERFACE
If the display is wired as shown
below, the RS-232 interface is
selected. The pin assignment is
specified in the table on the right.
The RxD and TxD lines lead
CMOS
level
(VDD)
to
a
microcontroller, for example, for
direct connection.
If “genuine” RS-232 levels are
required (e.g. for connection to a
PC), an external level converter
(e.g. MAX232) is required.
BAUD RATES
The baud rate is set by means of pins 6, 7 and 8 (baud 0 to 2). The data
format is set permanently to 8 data bits, 1 stop bit, no parity.
RTS/CTS handshake lines are not required. The required control is
taken over by the integrated software protocol (see pages 10 and 11).
Note:
The pins BAUD 0 to 2, ADR 0 to 2, DPOM,
DPROT and TEST/SBUF have an internal
pullup, which is why only the LO level
(0=GND) is to be actively applied. These
pins must be left open for a hi level.
For RS232 operation (without
addressing) the pins ADR 0 to ADR 2
must be left open.
On pin 20 (SBUF) the display indicates
with a low level that data is ready to be
retrieved from the internal send buffer.
The line can be connected to an interrupt
input of the host system, for example.



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