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參數(shù)資料
| 型號： | PCD5013H |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 尋呼電路 |
| 英文描述： | FLEX roaming decoder II |
| 中文描述： | TELECOM, PAGING DECODER, PQFP32 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, SOT-358-1, LQFP-32 |
| 文件頁數(shù)： | 37/76頁 |
| 文件大小： | 270K |
| 代理商： | PCD5013H |
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1999 Apr 12
37
Philips Semiconductors
Product specification
FLEX
roaming decoder II
PCD5013
8.6.5
P
HASE AND FRAME CALCULATION
The method for specifying phase and base frame of a
pager is specified in the CAPCODE type.
The phase and base frame are extracted by standard
rules from the user address field in the CAPCODE
(CAPCODE types A to L)
The phase is indicated by the CAPCODE type
(Table 32) and the base frame is specified in the frame
field of the CAPCODE (CAPCODE types U to Z).
For easy allocation of (up to 4) consecutive CAPCODEs
having the same phase and frame, an offset in the
range 0 to 3 is subtracted from the user address for the
purposes of phase and frame extraction. The offset is
determined by the CAPCODE type.
The standard rules for extracting phase and base frame
from the user address are (phase numbers 0 to 3
correspond to phases A to D):
Phase number = ((Address
Offset) DIV 4) MOD 4
Frame = ((Address
Offset) DIV 16) MOD 128
where DIV is the integer division and MOD is the
remainder of an integer division.
For a CAPCODE not using the standard rules for
extracting phase and base frame (types U to Z) the 3-digit
frame field 000 to 127 and a single digit decimal pager
collapse 0 to 5 can precede the CAPCODE type. When
these fields are not included, the paging device or the
subscriber database must be accessed to determine the
assigned frame and collapse value.
The CAPCODE for a roaming pager uses an Alpha
character to describe the level of roaming capability.
The Alpha characters descriptions are shown in Table 33.
Table 32
Frame and phase extraction for different CAPCODE types
Note
1.
All-phase decoding is not defined in FLEX
G1.8 and, therefore, is not supported by the PCD5013.
CAPCODE TYPE
PAGER TYPE
FRAME/PHASE EXTRACTION
A
B
C
D
E
F
G
H
I
J
K
L
U
V
W
X
Y
Z
single-phase
single-phase
single-phase
single-phase
any-phase
any-phase
any-phase
any-phase
all-phase; note 1
all-phase; note 1
all-phase; note 1
all-phase; note 1
single-phase
single-phase
single-phase
single-phase
any-phase
all-phase; note 1
standard rules; Offset: 0
standard rules; Offset: 1
standard rules; Offset: 2
standard rules; Offset: 3
standard rules; Offset: 0
standard rules; Offset: 1
standard rules; Offset: 2
standard rules; Offset: 3
standard rules; Offset: 0
standard rules; Offset: 1
standard rules; Offset: 2
standard rules; Offset: 3
no frame extraction rules, phase-A
no frame extraction rules, phase-B
no frame extraction rules, phase-C
no frame extraction rules, phase-D
no frame extraction rules, any-phase
no frame extraction rules, all-phase
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