參數(shù)資料
型號(hào): PCD5013
廠商: NXP Semiconductors N.V.
英文描述: FLEX roaming decoder II
中文描述: FleX創(chuàng)建漫游解碼器二
文件頁(yè)數(shù): 48/76頁(yè)
文件大小: 270K
代理商: PCD5013
1999 Apr 12
48
Philips Semiconductors
Product specification
FLEX
roaming decoder II
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, a
6
a
5
a
4
a
3
a
2
a
1
a
0
,
b
6
b
5
b
4
b
3
b
2
b
1
b
0
, 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
Table 54
Vector type V = 101 other fragments
MESSAGE
WORD
i
0
i
1
i
2
i
3
i
4
i
5
i
6
i
7
i
8
i
9
i
10
i
11
i
12
i
13
i
14
i
15
i
16
i
17
i
18
i
19
i
20
1st
2nd
3rd
4th
5th
...
nth
K
0
S
0
c
0
f
0
i
0
K
1
S
1
c
1
f
1
i
1
K
2
S
2
c
2
f
2
i
2
K
3
S
3
c
3
f
3
i
3
K
4
S
4
c
4
f
4
i
4
K
5
S
5
c
5
f
5
i
5
K
6
S
6
c
6
f
6
i
6
K
7
a
0
d
0
g
0
j
0
K
8
a
1
d
1
g
1
j
1
K
9
a
2
d
2
g
2
j
2
C
0
a
3
d
3
g
3
j
3
F
0
a
4
d
4
g
4
j
4
F
1
a
5
d
5
g
5
j
5
N
0
a
6
d
6
g
6
j
6
N
1
b
0
e
0
h
0
k
0
N
2
b
1
e
1
h
1
k
1
N
3
b
2
e
2
h
2
k
2
N
4
b
3
e
3
h
3
k
3
N
5
b
4
e
4
h
4
k
4
R
0
b
5
e
5
h
5
k
5
M
0
b
6
e
6
h
6
k
6
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
MESSAGE
WORD
i
0
i
1
i
2
i
3
i
4
i
5
i
6
i
7
i
8
i
9
i
10
i
11
i
12
i
13
i
14
i
15
i
16
i
17
i
18
i
19
i
20
1st
2nd
3rd
4th
5th
...
nth
K
0
a
0
d
0
g
0
j
0
K
1
a
1
d
1
g
1
j
1
K
2
a
2
d
2
g
2
j
2
K
3
a
3
d
3
g
3
j
3
K
4
a
4
d
4
g
4
j
4
K
5
a
5
d
5
g
5
j
5
K
6
a
6
d
6
g
6
j
6
K
7
b
0
e
0
h
0
k
0
K
8
b
1
e
1
h
1
k
1
K
9
b
2
e
2
h
2
k
2
C
0
b
3
e
3
h
3
k
3
F
0
b
4
e
4
h
4
k
4
F
1
b
5
e
5
h
5
k
5
N
0
b
6
e
6
h
6
k
6
N
1
c
0
f
0
i
0
l
0
N
2
c
1
f
1
i
1
l
1
N
3
c
2
f
2
i
2
l
2
N
4
c
3
f
3
i
3
l
3
N
5
c
4
f
4
i
4
l
4
U
0
c
5
f
5
i
5
l
5
V
0
c
6
f
6
i
6
l
6
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
i
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