epc120
5. Parameter Setting Registers 0/16
Parameter
Name
FUSEBIT
Register No.
RAM
0
ROM
16
0
0
1
Bit No.
Function
0
Values
This bit will automatically be set when register 16 is programmed.
Register 16 is not
programmed
Register 16 is programmed
POL
0
16
1
0
1
1
Values
Polarity of the LED pulse. Setting is depending on the LED driver circuitry.
Default Setting
X
active low
active high
TPULSE
0
16
4
0
0
0
0
1
1
1
1
4..2
3
0
0
1
1
0
0
1
1
2
0
1
0
1
0
1
0
1
Pulse length of the light pulse. Setting is dependent on the LED type, the LED current, the
required response time of the system, the scan rate, the operating range, the lens, etc.
Values
1μs
2μs
3μs
4μs
5μs
6μs
7μs
8μs
X (typical setting)
Default
Setting
X
Recommended Setting
n/a
TSTMP
0
0
16
16
8
0
0
0
0
1
1
1
1
5
8..6
7
0
0
1
1
0
0
1
1
6
0
1
0
1
0
1
0
1
no function, must be set to “0”
Time stamp. The LED pulse is generates in the middle of the time stamp range.
Values
30μs
60μs
90μs
120μs
150μs
180μs
210μs
240μs
Default Setting
X
Recommended Setting
This parameter should be set to the same length as the
receive window length, given by the scanning time by
the microcontroller. I.e., if the time between the SCAN
commands issued by the micro processor is 60μs, this
parameter should be set to 60μs.
DRATE
0
16
10..9
10
0
0
1
1
9
0
1
0
1
Data rate on the 2-wire bus
Values
250 kbit/s
500 kbit/s
1 Mbit/s
2 Mbit/s
if the physical 2-wire bus length is less than 3 meters
Default Setting
X
Recommended Setting
if the physical 2-wire bus length is up to 100 meters
...continued on next page...
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
12
Datasheet epc12x - V2.1
www.espros.ch
EPC [ ESPROS PHOTONICS CORP ]
