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3.6.9 Matrix Keyboard port (KEY & LED)
GF_VEDO TL uses the KEY & LED port to communicate with series TF keyboards.
It uses a high-speed full-duplex synchronous serial interface (SPI) with proprietary communication protocol.
This allows scanning of the key matrix and control of off/on status of LEDs on the keyboard.
The connector is an 8-pin RJ45 without LED, which allows keyboard communication and power.
Signal assignment is shown in Table 11.
Cable length can be a maximum of 1 meter.
1
Fig. 21
GF_VEDO TL KEY & LED port connector
3.6.10 Mouse and Keyboard PS2 port
The PS2 port connects the GF_VEDO TL to keyboards and mice conforming to PS2 standard.
Two mini-DIN 6-pin female connectors are used (green: Mouse, violet: Keyboard).
Signal assignment is shown in Tables 12 and Table 13.
Pin
In/Out
1
KBD Data
2
N.C.
3
GND
4
5 VDC
5
KBD CLK
6
N.C.
Signal assignment for GF_VEDO TL
PS2 Keyboard port
18
8
6
5
4
3
2
1
MOUSE
6
5
3
4
2
1
PC-KEY
Fig. 22 - GF_VEDO TL PS2 port connector for Mouse and Keyboard
Description
Data Keyboard
Not connected
GND
+5V
Keyboard Clock
Not connected
Table 12
Pin
Name
Description
1
KEYCLK
Keyboard clock
2
KEYOUT
Keyboard output
3
KEYIN
Keyboard input
4
IRST
Reset GT-Tast
5
POWER
+5V power supply
6
GND
0V power supply
7
GND
0V power supply
8
+12V
+12V power supply
Table 11
Signal assignment for GF_VEDO TL KEY & LED port
Pin
In/Out
1
MS Data
2
N.C.
3
GND
4
5 VDC
5
KBD CLK
6
N.C.
Signal assignment for GF_VEDO TL
80543B_MHW_GF_VEDO-TL_0109_ENG
PC-KEY
AUX
6
5
4
3
2
1
Description
Data Mouse
Not connected
GND
+5V
Mouse Clock
Not connected
Table 13
PS2 Mouse port
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