EPC120 EPC [Espros Photonics corp], EPC120 Datasheet - Page 13

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

© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
6. Parameter Setting Registers 1/17
Parameter
Name
SOFF
MODE
VMODE
Parameter
Name
FUSEBIT
n/a
TPER
RAM
ROM
Register No.
Register No.
0
0
0
1
1
1
ROM
RAM
16
16
16
17
17
17
15
11
14
0
1
0
0
1
15
0
1
1
0
Bit No.
Bit No.
14..12
15..13
12..1
15
11
0
Values
Register 17 is not programmed
Register 17 is programmed
Values
Values
14
13
1
On
1
Off
On
Off
13
0
12
0
Function
Status of voltage regulator for internal VDD
Mode for epc120 usage
Volatile mode
Function
This bit will automatically be set when register 17 is programmed.
no function, must be set to “0”
must be set to “010”
Default Setting
Default Setting
Table 3: epc120 Registers 0 and 16
Table 4: epc120 Registers 1 and 17
Value
X
X
6
Recommended Setting
when used a receiver
when used as interface chip with 3.3V micro controller
Recommended Setting
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”. This setting could also be useful, if the system parameters should be
changed “on the fly” in dynamic systems. it is recommended to program the
address and burn it into the ROM first. All other parameters can then be
downloaded upon power-up.
Set to “1” in the final product to avoid accidentally overwriting of the contents of
the RAM registers
13
Datasheet epc12x - V2.1
www.espros.ch
epc120