PCD5008 データシートの表示（PDF） - Philips Electronics
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PCD5008 Datasheet PDF : 64 Pages
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Philips Semiconductors
FLEX™ Pager Decoder
Product specification
PCD5008
handbook, full pagewidth
TOUT0 1
OSCPD 2
VDD1 3
TEST2 4
XTAL 5
EXTAL 6
VSS1 7
TEST3 8
PCD5008H
24 RESET
23 S0
22 S1
21 S2
20 S3
19 S4
18 S5
17 TOUT2
MGK257
Fig.2 Pin configuration.
8 FUNCTIONAL DESCRIPTION
8.1 General
The PCD5008 simplifies implementation of a FLEX™
paging device by interfacing with off-the-shelf components
such as a paging receiver and a microcontroller or
microprocessor (called a host). The PCD5008 is fully
compatible with FLEXstack™ software which provides a
complete, platform independent, software driver for the
PCD5008.
The PCD5008 fully supports all non-roaming aspects of
the FLEX™ protocol (version G1.8), and can operate in
either single-phase or any-phase mode. The PCD5008
supports FLEX™ dynamic grouping, allowing up to
16 temporary addresses to be enabled simultaneously.
It is also capable of retrieving real time information from a
FLEX™ channel.
The PCD5008 connects to any receiver capable of
providing a 2-bit digital signal. The PCD5008 operates the
paging receiver in an efficient power consumption mode.
The PCD5008 has 8 receiver control lines used for
warming up, operating and shutting down a receiver in
stages.
The PCD5008 has the ability to detect a battery-low signal
from an external detector during the receiver control
sequences.
The PCD5008 carries out the following functions:
• Synchronises to a FLEX™ data stream
• Processes received, demodulated information
• Performs de-interleaving and error correction
• Selects calls addressed to the paging device using up to
16 programmable addresses
• Communicates the message information to the host.
1998 Jun 17
6
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