TCB5232A TOPWAY | Alldatasheet
Document overview
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Technical content
URL: www.topwaydisplay.com www.topwaysz.com Document Name: TCB5232A-Manual-Rev0.2.DOC Page: 1 of 7 TCB5232A Interface Board User Manual Prepared by: K.C. Checked by: Approved by: Date:2011-04-06 Date: Date: Rev. Descriptions Release Date
0.1 Preliminary Release 2008-05-14
0.2 Typing Correction in 4.2 2011-04-06
TOPWAY TOPWAY TOPWAY TOPWAY Interface Board TCB5232A URL: www.topwaydisplay.com www.topwaysz.com Document Name: TCB5232A-Manual-Rev0.2.DOC Page: 2 of 7 Table of Content
TOPWAY TOPWAY TOPWAY TOPWAY Interface Board TCB5232A URL: www.topwaydisplay.com www.topwaysz.com Document Name: TCB5232A-Manual-Rev0.2.DOC Page: 3 of 7 1. Basic Specifications
1.1 Product Highlight
1) TCB5232 is a RS232C interface board for LCD module 2) Support interfacing TOPWAY LCD module with PC 3) Single 5.0V supply 4) Support different baud rate (Jumper setting) 5) Direct interface with TOPWAY LCD module: LM2068R series, LM2068E series, LM2068S series (5V supply, 80mode interface)
1.2 Mechanical Specifications
K1 : FFC socket (P1.0mm, 20pin) for LM2068E series, LM2068R series, LM2068S series K3 : SIL header (P2.5mm, 6pin) for power supply and RS232C connection
TOPWAY TOPWAY TOPWAY TOPWAY Interface Board TCB5232A URL: www.topwaydisplay.com www.topwaysz.com Document Name: TCB5232A-Manual-Rev0.2.DOC Page: 4 of 7
1.3 Terminal Functions
1.3.1 RS232C interface Terminal K3 (power supply input)
No. Pin Name I/O Descriptions
1 TxD output Standard RS232C Tx signal output
(connect to PC’s RS232C terminal (9pin D-connector) pin2)
2 RxD Input Standard RS232C Rx signal input
(connect to PC’s RS232C terminal (9pin D-connector) pin3)
3 VSS Power
4 VSS Power
0V supply, GND (connect to PC’s RS232C terminal (9pin D-connector) pin5)
5 VDD Power
6 VDD Power
+5V, positive power supply.
1.3.2 LCD Terminal (K1)
No. Pin Name I/O Descriptions
1 VSS Power 0V Power Supply, GND
2 VDD Power Positive Power Supply
3 V0 Output LCD Contrast Reference output
4 /WR Output Write enable input, active LOW 5 /RD Output Read enable input, active LOW 6 /CS Output Chip Select Signal
7 A0(RS) Output Data Type Select
8 /RES(/RST) Output Reset Signal:
9 DB0
: :
16 DB7
I/O 8-bit bi-directional data bus
17 NC - No connection
18 VOUT Power Power Booster input for V0
19 BLA Power Positive Power Supply for LED backlight, direct connected to VDD
20 BLK Power Negative Power Supply for LED backlight, direct connected to VSS
TOPWAY TOPWAY TOPWAY TOPWAY Interface Board TCB5232A URL: www.topwaydisplay.com www.topwaysz.com Document Name: TCB5232A-Manual-Rev0.2.DOC Page: 5 of 7 2. Absolute Maximum Ratings Items Symbol Min. Max. Unit Condition Supply Voltage V DD -0.3 5.5 V VSS = 0V RxD Input Voltage RxD -6.5 +6.5 V VSS = 0V Operating Temperature TOP -20 70 °C No Condensation Storage Temperature TST -30 80 °C No Condensation Cautions: Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. 3. Electrical Characteristics
3.1 DC Characteristics
VSS =0V, V DD =5.0V, T OP =25 °C Items Symbol MIN. TYP. MAX. Unit Applicable Pin Operating Voltage V DD +4.2 +5.0 +5.2 V VDD RxD Input High V RxDH +2.4 - +6.5 V RxD RxD Input Low V RXDL -6.5 - +0.8 V RxD TxD Output High V TXDH +5.0 +5.4 - V TxD TxD Output Low V TXDL - -5.4 -5.0 V TxD
3.2 AC Characteristics
Please refer to MAX3232 datasheet for details.
TOPWAY TOPWAY TOPWAY TOPWAY Interface Board TCB5232A URL: www.topwaydisplay.com www.topwaysz.com Document Name: TCB5232A-Manual-Rev0.2.DOC Page: 6 of 7 4. Function Specifications
4.1 Contrast Control
LCD contrast control could be adjusted by VR, P1, on the Interface Board.
4.2 Jumpers
OPEN OPEN 38400 <default> CLOSE OPEN 19200 OPEN CLOSE 9600 CLOSE CLOSE 4800
4.3 RS232C setting
No. of Bit 8 Parity None Stop Bit 1
4.4 Data Packet
The command and data should be send by packet. Each packet containing 4 element. Opcode (1byte in ASCII) No. of Data/Command (2byte, in ASCII) Data (depends on no of byte) Stop byte (1byte in ASCII)
4.5 Protocode
(ASCII) No. of Data (Hex No. in ASCII) Data Stop Byte (in ASCII) Note @ 0 0 Nil ; Reset the LCM /RES(/RST)=1 /barb2right /RES(/RST)=0 /barb2right /RES(/RST)=1 (last about 500ms) A N N … ; A0(RS)=0, Data Packet in ASCII-HexNo. B N N … ; A0(RS)=1, Data Packet in binary value C N N … ; A0(RS)=1, Data Packet in ASCII-HexNo.
4.6 Handshaking
Interface Board will provide a return signal for handshaking. The provided signal are in ASCII code. Response Code (ASCII) Note > Ready to receive : Correct Packet Received ! Error Packet Received Wait until Ready signal then send again If not use handshake during the communication. It is necessary to provide 50ms between each command package.
TOPWAY TOPWAY TOPWAY TOPWAY Interface Board TCB5232A URL: www.topwaydisplay.com www.topwaysz.com Document Name: TCB5232A-Manual-Rev0.2.DOC Page: 7 of 7 5. Design and Handling Precaution 1. Any mechanical shock (eg. dropping form high place) will damage the device. 2. Do not add excessive force on the device. 3. Never attempt to disassemble or rework the device. 4. When mounting the device, make sure that it is free form twisting, warping and distortion. 5. Only hold the device by its side. 6. Never add force to component of the device. It may cause invisible damage or degrade of the reliability. 7. This could be easily damaged by static electricity. Be careful to maintain an optimum anti-static work environment to protect it. 8. Take care and prevent get hurt by the device sharp edge. 9. Never operate the device exceed the absolute maximum ratings. 10. Keep the signal line as short as possible to prevent noisy signal applying to the device. 11. Never apply signal to the device without power supply. 12. Device reliability may be reduced by temperature shock. 13. When storing the device, avoid exposure to the direct sunlight, high humidity, high temperature or low temperature.