PCD5013 Datasheet, PDF (48/76 Pages) NXP Semiconductors – FLEX roaming decoder II

Philips Semiconductors
FLEX™ roaming decoder II
Product specification
PCD5013
K: 10-bit fragment checksum (Tables 53 and 54).
See Section 8.8.7 for a description of message checksum.
C: 1-bit message continued flag (Tables 53 and 54).
When this bit is set, fragments of this message are to be
expected in following frames. See Section 8.8.6 for a
description of message fragmentation.
F: 2-bit message fragment number (Tables 53 and 54).
This is a modulo 3 message fragment number which is
incremented by 1 in successive message fragments.
See Section 8.8.6 for a description of message
fragmentation.
N: message number (Tables 53 and 54).
See Section 8.8.8 for a description of message
numbering.
M: 1-bit mail drop flag (Table 53). When this bit is set, it
indicates the message is to be stored in a special area in
memory and is written over existing data automatically in
that memory space.
R: message retrieval flag (Table 53). When this bit is set,
the pager expects this message to be numbered.
See Section 8.8.8 for a description of message
numbering.
S: 7-bit signature field (Table 53). The signature is defined
to be the 1’s complement of the binary sum over the total
message (all fragments). 7 bits at a time are taken (on
alpha character boundary) starting with the first 7 bits
directly following the signature field, a₆a₅a₄a₃a₂a₁a₀,
b₆b₅b₄b₃b₂b₁b₀, etc. The 7 LSBs of the result are
transmitted as the message signature.
U, V: fragmentation control bits (Table 54). This field exists
in all fragments except the first fragment. It is used to
support character position tracking in each fragment when
symbolic characters (character made up of 1, 2 or 3
ASCII characters) are transmitted using the alphanumeric
message type. The default value is 0,0.
See Section 8.8.6.1 for a description of fragment control.
Table 53 Vector type V = 101 first fragment
MESSAGE
WORD
i₀
i₁
i₂
i₃
i₄
i₅
i₆
i₇
i₈
i₉
i₁₀ i₁₁ i₁₂ i₁₃ i₁₄ i₁₅ i₁₆ i₁₇ i₁₈ i₁₉ i₂₀
1st
K₀ K₁ K₂ K₃ K₄ K₅ K₆ K₇ K₈ K₉ C₀ F₀ F₁ N₀ N₁ N₂ N₃ N₄ N₅ R₀ M₀
2nd
S₀ S₁ S₂ S₃ S₄ S₅ S₆ a₀ a₁ a₂ a₃ a₄ a₅ a₆ b₀ b₁ b₂ b₃ b₄ b₅ b₆
3rd
c₀ c₁ c₂ c₃ c₄ c₅ c₆ d₀ d₁ d₂ d₃ d₄ d₅ d₆ e₀ e₁ e₂ e₃ e₄ e₅ e₆
4th
f₀ f₁ f₂ f₃ f₄ f₅ f₆ g₀ g₁ g₂ g₃ g₄ g₅ g₆ h₀ h₁ h₂ h₃ h₄ h₅ h₆
5th
i₀ i₁ i₂ i₃ i₄ i₅ i₆ j₀ j₁ j₂ j₃ j₄ j₅ j₆ k₀ k₁ k₂ k₃ k₄ k₅ k₆
...
nth
iiiiiiiiii i iiiiiiiiii
Table 54 Vector type V = 101 other fragments
MESSAGE
WORD
i₀
i₁
i₂
i₃
i₄
i₅
i₆
i₇
i₈
i₉
i₁₀ i₁₁ i₁₂ i₁₃ i₁₄ i₁₅ i₁₆ i₁₇ i₁₈ i₁₉ i₂₀
1st
K₀ K₁ K₂ K₃ K₄ K₅ K₆ K₇ K₈ K₉ C₀ F₀ F₁ N₀ N₁ N₂ N₃ N₄ N₅ U₀ V₀
2nd
a₀ a₁ a₂ a₃ a₄ a₅ a₆ b₀ b₁ b₂ b₃ b₄ b₅ b₆ c₀ c₁ c₂ c₃ c₄ c₅ c₆
3rd
d₀ d₁ d₂ d₃ d₄ d₅ d₆ e₀ e₁ e₂ e₃ e₄ e₅ e₆ f₀ f₁ f₂ f₃ f₄ f₅ f₆
4th
g₀ g₁ g₂ g₃ g₄ g₅ g₆ h₀ h₁ h₂ h₃ h₄ h₅ h₆ i₀ i₁ i₂ i₃ i₄ i₅ i₆
5th
j₀ j₁ j₂ j₃ j₄ j₅ j₆ k₀ k₁ k₂ k₃ k₄ k₅ k₆ l₀ l₁ l₂ l₃ l₄ l₅ l₆
...
nth
iiiiiiiiii i iiiiiiiiii
1999 Apr 12
48