PCD5003USLASH10 datasheet(22/44 Pages) PHILIPS

номер детали	PCD5003U/10

подробное описание детали	Advanced POCSAG Paging Decoder

PDF	44 Pages

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производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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22 / 44 page

1997 Jun 24

Philips Semiconductors

Product speciﬁcation

Advanced POCSAG Paging Decoder

PCD5003

7.39

Cancelling alerts

Standard POCSAG alerts (manual or automatic) are

cancelled by resetting bit D0 in the alert set-up register.

User defined alerts are cancelled by writing a zero to the

alert cadence register. Any ongoing alert is cancelled

when a reset pulse is applied to input RST.

7.40

Automatic POCSAG alerts

Standard alert patterns have been deﬁned for each

POCSAG call type, as indicated by the function bits in the

address codeword (see Table 1). The timing of these alert

patterns is shown in Fig.9.

When enabled by SPF programming (SPF byte 03, bit D2)

standard POCSAG alerts will automatically be generated

on outputs ATL, ATH, LED and VIB upon call reception.

The alert pattern matches the call type as indicated by the

function bits in the received address codeword.

The original settings of the alert set-up register will be lost.

Bit D0 is reset after completion of the alert.

Fig.9 POCSAG alert timing.

handbook, full pagewidth

FC = 00

FC = 01

FC = 10

FC = 11

tALC

tALP

tALC

tALP

MLC252

PCD5003U/10 датащи(PDF) 22 Page - NXP Semiconductors