1999 Apr 12
41
Philips Semiconductors
Product specification
FLEX
roaming decoder II
PCD5013
Table 39
Address packet bit assignments
BYTE
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
3
2
1
0
0
0
p
1
AI
6
WN
6
0
p
0
AI
5
WN
5
0
0
x
0
x
0
x
1
x
PA
AI
7
TOA
LA
AI
4
WN
4
AI
3
WN
3
AI
2
WN
2
AI
1
WN
1
AI
0
WN
0
8.7.4
N
UMERIC VECTOR PACKET
WN:
word number of vector (2 to 87 decimal) (Table 40).
WN describes the location of the vector word in the frame.
e:
error (Table 40). 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 40). This is the phase on which the vector
was found (0 = A, 1 = B, 2 = C and 3 = D).
x:
unused bits (Table 40). The value of these bits is not
guaranteed.
V:
vector type identifier (Table 41).
K:
first check bits of the message checksum
(Table 40 and Section 8.8.7).
n:
number of message words in the message (Table 40),
including the second vector word for long addresses,
(000 = 1 word message, 001 = 2 word message, etc.).
For long addresses, the first message word is located in
the word location that immediately follows the associated
vector.
b:
word number of message start in the message field
(3 to 87 decimal) (Table 40). For long addresses, the word
number indicates the location of the second message
word.
Table 40
Numeric vector packet bit assignments
Table 41
Numeric vector definitions
BYTE
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
3
2
1
0
0
e
x
n
0
WN
6
p
1
x
b
6
WN
5
p
0
K
3
b
5
WN
4
x
K
2
b
4
WN
3
x
K
1
b
3
WN
2
V
2
K
0
b
2
WN
1
V
1
n
2
b
1
WN
0
V
0
n
1
b
0
V
2
0
1
V
1
1
0
V
0
1
0
TYPE
DESCRIPTION
standard numeric
special format numeric
No special formatting of characters is specified.
Formatting of the received characters is predetermined by
special rules in the host (e.g. inserting spaces and dashes).
Received information is numbered by the service provider to
indicate all messages have been properly received.
1
1
1
numbered numeric