PCD5008 datasheet(18/64 Pages) PHILIPS

18 / 64 page

1998 Jun 17

Philips Semiconductors

Product speciﬁcation

FLEX

™ Pager Decoder

PCD5008

Table 6

Input signal polarity

Table 7

FLEX

™ 4 level FSK modulation selection

SP1

SP0

SIGNAL POLARITY

EXTS1

EXTS0

normal

inverted

normal

inverted

EXTS1

EXTS0

FSK MODULATION

AT SP = 0,0

(Hz)

+4800

+1600

−1600

−4800

8.4.5

PART ID PACKET (ID = FFH)

The part ID packet is output by the PCD5008 SPI

whenever the SPI transmit is disabled due to the

checksum feature.

MDL: model (Table 8). The PCD5008 model value is 0.

CID: compatibility ID (Table 8). This value describes other

parts with the same model number, which are compatible

with this part. The PCD5008 compatibility value is 1.

Devices which implement a superset of PCD5008

functionality have MDL cleared and CID0 set.

REV: revision (Table 8). This identifies the manufacturing

version of the PCD5008. For the PCD5008 the value is 6.

Compatible parts have values in the range 0 to 5.

8.4.6

CHECKSUM PACKET (ID = 00H)

See Table 9 for checksum packet bit assignment.

CV: checksum value (24 bits), see Section 8.4.2.

Table 8

Part ID packet bit assignments

Table 9

Checksum packet bit assignments

BYTE

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

311111111

MDL1

MDL0

CID13

CID12

CID11

CID10

CID9

CID8

CID7

CID6

CID5

CID4

CID3

CID2

CID1

CID0

REV7

REV6

REV5

REV4

REV3

REV2

REV1

REV0

BYTE

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

300000000

2CV23

CV22

CV21

CV20

CV19

CV18

CV17

CV16

1CV15

CV14

CV13

CV12

CV11

CV10

CV9

CV8

0CV7

CV6

CV5

CV4

CV3

CV2

CV1

CV0

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