EPC120 datasheet(13/27 Pages) EPC

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epc120

Parameter

Name

Bit No.

Function

RAM

ROM

SOFF

Status of voltage regulator for internal VDD

Values

Default Setting

Recommended Setting

when used a receiver

Off

when used as interface chip with 3.3V micro controller

MODE

14..12

Mode for epc120 usage

Value

VMODE

Volatile mode

Values

Default Setting

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.

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

Bit No.

Function

ROM

RAM

FUSEBIT

This bit will automatically be set when register 17 is programmed.

Values

n/a

12..1

no function, must be set to “0”

TPER

15..13

must be set to “010”

Table 4: epc120 Registers 1 and 17

Characteristics subject to change without notice

Datasheet epc12x - V2.1

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