SC14WAMDECTSF01T datasheet(12/37 Pages) RENESAS

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Datasheet

Revision 3.1

05-Jan-2022

CFR0011-120-00-FM Rev 5

12 of 36

SC14WAMDECT SF

Wireless Audio Module

FINAL

4.5 REGISTRATION

The PP and the FP must be paired using a procedure

called Registration. Without registration the PP will be

out-of-lock and unable to establish a link to a FP.

Therefore it will not be able to make a call.

The registration uses the unique product identities and

secures the PP and FP to allow no cross-communica-

tion. To avoid cross-communication it is very important

that all the PPs and the FP use a unique numbering

scheme, which is standard in DECT based systems.

It is possible to pair a PP and FP during production

using the production interface including wire registra-

tion. See [2].

4.5.1 Handling product identities

To ensure that the FP and PPs do not make cross-

communications a unique ID must be entered into the

VES of the FP and PP. For DECT products, the FP

identifier is called the RFPI and the PP identifier is

called the IPEI. These numbers are factory settings.

After a successful registration, the IPEI is stored in the

FP and the RFPI is stored in the PP. In this way the two

parts are known to each other and are allowed to make

connections. See Figure 5.

4.5.2 Access code

In TG mode a 6-bit access code (0x00 to 0x3F) can be

defined via pins ACCESS_0 to ACCESS_5. The bit

pattern on the ACCESS_x pins of the FP must be set

before registration and needs to remain stable during

registration. For successful registration of a PP the

access codes of PP and FP must be the same.

4.6 DEREGISTRATION

There are two ways of deregistering a PP from an FP:

• PP registration:

After successful PP registration an existing FP pair-

ing will be overwritten. This method can be used

when the PP should be combined with another FP

and the original registration should be removed.

• FP deregistration:

During FP deregistration all existing PP pairings are

removed. This method can be used when the origi-

nal PPs were lost.

4.7 DATA TRANSFER

In Tour Guide mode an API function is available for

broadcasting data from FP to PP via the UART at a

rate of 1 kbit/s. The data is transmitted in packets of

maximum 20 bytes. No data interpretation is done.

For more information on this API function, see [3] and

[4]. A software example (“Sendmail”) of data transfer

via UART is available on request.

Figure 5: Handling product identities

Subscription data PP #1

Subscription data PP #2

Subscription areas in

EEPROM

(Stores the IPEI of the

registered PPs)

Subscription data FP #1

Subscription areas in

EEPROM

(Stores the RFPI of the

registered FPs)

PP #1

DECT

RF link

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