PCD5003 datasheet(20/44 Pages) PHILIPS

20 / 44 page

1997 Jun 24

Philips Semiconductors

Product speciﬁcation

Advanced POCSAG Paging Decoder

PCD5003

Table 18 Alert set-up register (04H; write)

Note

1. Bits D7 and D6 correspond to function bits 20 and 21 respectively in the address codeword, which designate the

POCSAG call type as shown in Table 1.

BIT (MSB: D7)

VALUE

DESCRIPTION

call alert via cadence register

POCSAG call alert (pattern selected by D7, D6)

LOW level acoustic alert (ATL), pulsed vibrator alert (25 Hz)

HIGH level acoustic alert (ATL + ATH), continuous vibrator alert

normal alerts (acoustic and LED)

warbled alerts: 16 Hz (LED: on/off, ATL/ATH: alternate fAWH, fAWL)

acoustic alerts enable (ATL, ATH)

vibrator alert enabled (VIB)

LED alert enabled (LED)

D7 and D6(1)

0 0

POCSAG alert pattern FC = 00, see Fig.8(a)

0 1

POCSAG alert pattern FC = 01, see Fig.8(b)

1 0

POCSAG alert pattern FC = 10, see Fig.8(c)

1 1

POCSAG alert pattern FC = 11, see Fig.8(d)

Fig.8 POCSAG alert patterns.

handbook, full pagewidth

MLC251

(a)

(b)

(c)

(d)

0 0

D7, D6

0 1

1 0

1 1

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