EPC120 EPC [Espros Photonics corp], EPC120 Datasheet - Page 12

• Manufacturer Part Number: EPC120
• Description: Fully integrated Light-Barrier Chips with 2-Wire Bus Interface
• Manufacturer: EPC [Espros Photonics corp]

5. Parameter Setting Registers 0/16
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
Parameter
Name
FUSEBIT
POL
TPULSE
n/a
TSTMP
DRATE
RAM
Register No.
0
0
0
0
0
0
ROM
16
16
16
16
16
16
0
0
1
1
0
1
10
Bit No.
4
0
0
0
0
1
1
1
1
8
0
0
0
0
1
1
1
1
0
0
1
1
10..9
4..2
8..6
0
1
5
Values
Register 16 is not
programmed
Register 16 is programmed
Values
active low
active high
3
0
0
1
1
0
0
1
1
7
0
0
1
1
0
0
1
1
9
0
1
0
1
2
0
1
0
1
0
1
0
1
6
0
1
0
1
0
1
0
1
250 kbit/s
500 kbit/s
1 Mbit/s
2 Mbit/s
Function
This bit will automatically be set when register 16 is programmed.
Polarity of the LED pulse. Setting is depending on the LED driver circuitry.
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.
no function, must be set to “0”
Time stamp. The LED pulse is generates in the middle of the time stamp range.
Data rate on the 2-wire bus
Values
Values
Values
120μs
150μs
180μs
210μs
240μs
30μs
60μs
90μs
1μs
2μs
3μs
4μs
5μs
6μs
7μs
8μs
...continued on next page...
Default Setting
Default Setting
Default
Setting
Default Setting
X
X
X
X
12
Recommended Setting
Recommended Setting
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.
if the physical 2-wire bus length is up to 100 meters
if the physical 2-wire bus length is less than 3 meters
X (typical setting)
Datasheet epc12x - V2.1
www.espros.ch
epc120