Manual epc10x

4.1 Receiver Parameters (epc100)

Parameter

Name

Register No.

Bit No.

Function

ROM

RAM

FUSEBIT

0

16

0

This bit will automatically be set when register 16 is programmed.

0 Values

0 Register 16 is not programmed

1 Register 16 is programmed

n/a

0

16

5..1

no function, must be set to “0”

TSTMP

0

16

8..6

Time stamp.

8

7

6

Values

Default

Recommended Setting

0

0

0

30μs

X

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.

0

0

1

60μs

0

1

0

90μs

0

1

1

120μs

1

0

0

150μs

1

0

1

180μs

1

1

0

210μs

1

1

1

240μs

DRATE

0

16

10..9

Data rate on the 2-wire bus

10

9

Values

k

Default Recommended Setting

0

0

250 kbit/s

8

X

if the physical 2-wire bus length is up to 100 meters

0

1

500 kbit/s

4

1

0

1 Mbit/s

2

1

1

2 Mbit/s

1

if the physical 2-wire bus length is less than 3 meters

SOFF

0

16

11

Status of voltage regulator for internal VDD

11 Values

Default Recommended Setting

0

On

X

when used as a receiver

1

Off

when used as interface chip with 3.3V microcontroller

MODE

0

16

14..12

no function, must be set to “0”

VMODE

0

16

15

volatile mode

11 Values Default 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: epc100 Registers 0 and 16

© 2013 ESPROS Photonics Corporation

Characteristics subject to change without notice

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Manual epc100 - V2.3-DRAFT 130812

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