epc120
Parameter
Name
Register No.
Bit No.
Function
RAM
ROM
SOFF
0
16
11
Status of voltage regulator for internal VDD
11
Values
On
Default Setting
Recommended Setting
0
1
X
when used a receiver
Off
when used as interface chip with 3.3V micro controller
MODE
0
16
16
14..12
Mode for epc120 usage
14
13
12
Value
1
1
0
6
VMODE
0
15
Volatile mode
15
Values
Default Setting
Recommended Setting
0
On
X
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.
1
Off
Set to “1” in the final product to avoid accidentally overwriting of the contents of
the RAM registers
Table 3: epc120 Registers 0 and 16
6. Parameter Setting Registers 1/17
Parameter
Name
Register No.
Bit No.
Function
ROM
RAM
FUSEBIT
1
17
0
This bit will automatically be set when register 17 is programmed.
0
Values
0
1
Register 17 is not programmed
Register 17 is programmed
n/a
1
1
17
17
12..1
no function, must be set to “0”
TPER
15..13
must be set to “010”
15
14
13
0
1
0
Table 4: epc120 Registers 1 and 17
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
13
Datasheet epc12x - V2.1
www.espros.ch
EPC [ ESPROS PHOTONICS CORP ]
