PCD5008 Ver la hoja de datos (PDF) - Philips Electronics
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PCD5008 Datasheet PDF : 64 Pages
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Philips Semiconductors
FLEX™ Pager Decoder
Product specification
PCD5008
Table 6 Input signal polarity
SIGNAL POLARITY
SP1
SP0
EXTS1
EXTS0
0
0
normal
normal
0
1
normal
inverted
1
0
inverted
normal
1
1
inverted
inverted
Table 7 FLEX™ 4 level FSK modulation selection
EXTS1
1
1
0
0
EXTS0
0
1
1
0
FSK MODULATION
AT SP = 0,0
(Hz)
+4 800
+1 600
−1 600
−4 800
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
BYTE
3
2
1
0
BIT 7
1
MDL1
CID7
REV7
BIT 6
1
MDL0
CID6
REV6
BIT 5
1
CID13
CID5
REV5
Table 9 Checksum packet bit assignments
BYTE
3
2
1
0
BIT 7
0
CV23
CV15
CV7
BIT 6
0
CV22
CV14
CV6
BIT 5
0
CV21
CV13
CV5
BIT 4
1
CID12
CID4
REV4
BIT 4
0
CV20
CV12
CV4
BIT 3
1
CID11
CID3
REV3
BIT 3
0
CV19
CV11
CV3
BIT 2
1
CID10
CID2
REV2
BIT 2
0
CV18
CV10
CV2
BIT 1
1
CID9
CID1
REV1
BIT 1
0
CV17
CV9
CV1
BIT 0
1
CID8
CID0
REV0
BIT 0
0
CV16
CV8
CV0
1998 Jun 17
18
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