PCD5008 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Lista de partido

PCD5008

FLEX™ Pager Decoder

Philips Electronics 

Philips Semiconductors

FLEX™ Pager Decoder

Product specification

PCD5008

handbook, full pagewidth

reset

PCD5008 disables

SPI transmit

PCD5008 initializes

checksum register

to part ID value

PCD5008 initiates

part ID packet

PCD5008 waits for

SPI packet from host

Y

N

checksum packet?

Y

PCD5008

SPI transmit

enabled?

N

packet data

matches checksum

N

register data?

Y

PCD5008 enables

SPI transmit

PCD5008 disables

SPI transmit

PCD5008 sets

checksum registers to

the XOR of the packet

data bits with the

checksum register bits

MGK260

Fig.10 SPI security algorithm.

1998 Jun 17

15

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