PCD5008 datasheet(36/64 Pages) PHILIPS

36 / 64 page

1998 Jun 17

Philips Semiconductors

Product speciﬁcation

FLEX

™ Pager Decoder

PCD5008

8.7.6

HEX/BINARY, ALPHANUMERIC AND SECURE

MESSAGE VECTORS

V: vector type identifier (Table 35).

WN: word number of vector (2 to 87 decimal) (Table 36).

WN describes the location of the vector word in the frame.

e: error (Table 36). Set if more than 2 bit errors are

detected in the word, if the check character calculation fails

after error correction has been performed, or if the vector

value is determined to be invalid.

p: phase (Table 36). This is the phase on which the vector

was found (0 = A, 1 = B,2=Cand3=D).

n: number of message words in this frame (Table 36),

including the first message word that immediately follows

a long address vector. Valid values are 1 to 85 decimal.

b: word number of message start in the message field

(Table 36). Valid values are 3 to 87 decimal.

x: unused bits (Table 36). The value of these bits is not

guaranteed.

Note that for long addresses, the first message packet is

sent from the word location immediately following the word

location of the vector packet. The b bits indicate the

second message word in the message field if one exists.

Table 35 Non-numeric vector deﬁnitions

TYPE

secure

alphanumeric

hex/binary

Table 36 Hex/binary, alphanumeric and secure message vector packet bit assignments

BYTE

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

WN6

WN5

WN4

WN3

WN2

WN1

WN0

0n0

PCD5008 Datasheet(PDF) 36 Page - NXP Semiconductors

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