EPC110 Datasheet, PDF (13/27 Pages) Espros Photonics corp – Fully integrated configurable light barrier driver & receiver

epc110
VMODE
0
16
15 Disables WRITE access to volatile RAM
11 Values Default Recommended Setting
0 On
X WRITE access to RAM possible.
1 Off
1. Fix-parameter mode / Debug mode:
This setting allows to overwrite the RAM contents, which is useful during debugging.
Once the system is fully developed, this parameter should be set to “1”.
2. Dynamic mode:
This setting could also be useful for dynamic system application, if the system
parameters should be changed “on the fly” after power-up. It is recommended to
program the parameters and burn it into the ROM first. All deviating run-time
parameters have then to be downloaded on the fly after power-up every time.
WRITE access to RAM denied.
Set to “1” in the final product to avoid accidentally overwriting of the contents of the RAM registers.
Parameter
Name
FUSEBIT
Register No.
ROM RAM
1
17
Bit No. Function
0
During write operation to this RAM register, put this bit = 0.
This bit will be set automatically, when corresponding ROM register is programmed.
0 Values
0 The corresponding ROM register is not programmed
1 The corresponding ROM register is programmed
n/a
1
17
2...1 no function, must be set to “0”
21
00
INC
1
17
6...3 Weight of valid pulse counts. Refer to Pulse Modulated Operation (e.g. OUTNint to OUTN) :
Minimum number of valid (non-missing) pulses nV of light detection for counting the r esponse time tR.
654 3
000 0
000 1
001 0
001 1
010 0
010 1
011 0
011 1
100 0
100 1
101 0
101 1
110 0
110 1
111 0
111 1
INC min. nV
0
1
1
32
2
16
3
11
4
8
5
7
6
6
7
5
8
4
9
4
10
4
11
3
12
3
13
3
14
3
15
3
Setting
X (Default setting)
X (typical setting)
n/a
1
17
8...7 no function, must be set to “0”
87
00
© 2011 ESPROS Photonics Corporation
13
Characteristics subject to change without notice
Datasheet epc110 - V2.1
www.espros.ch