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Revision 1.2, WiM
28.06.2011
Laser Deflection Cube
Table 2: Pin out I/O Connector
Pin
Group
1
Symbol
In/Out
Signal
SS
IN
5V Logic
Description
Slave Select
2
3V3
OUT
Power Supply
3
SDO
OUT
5V Logic
GND
—
Power Supply
Ground pin
5
SCK
IN
5V Logic
Serial Clock
6
SDI
IN
5V Logic
7
PD1
OUT
3.3V Logic
Serial Data In (Master Out Slave In, MOSI)
Raw output signal of zero-deflection
switching photo diode
PD2
OUT
3.3V Logic
9
REF
OUT
3.3V Logic
10
11
Reserved
GND
—
—
—
Power Supply
Reference clock of scanner drive signal
Drive signal frequency doubled derived
from the REF signal
Keep disconnected!
Ground pin
VDD
RDY
—
OUT
Power Supply
5V Logic
Main power supply (5V)
Ready signal of scanner module
ERR
OUT
5V Logic
Error signal of scanner module
EN
IN
5V Logic
Enable Signal of scanner module
MODE
IN
5V Logic
AMPL
OUT
5V Logic
TRIG
OUT
5V Logic
4
8
12
13
SPI Interface
Digital
Sensor
Signals
Power
Supply
14
15
I/O
16
17
18
Digital
Sensor
Signals
Serial Data Out (Master In Slave Out, MISO)
Raw output signal of amplitude
measurement photo diode
Switches between open and close loop
scanner control
Preprocessed amplitude measurement
signal
Preprocessed zero deflection measurement
signal, can be used as a synchronization
signal for scanner oscillation
4.3 State Indicators Leeds
LED
Color
Description
LED1
yellow
Power supply
LED2
red
Start-up frequency sweep, control activity
LED3
orange
control activity
LED4
Red
Error (connected to the ERR state signal)
Figure 7: State indicator Leeds
12
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