參數(shù)資料
型號(hào)： PCD5008
廠商： NXP Semiconductors N.V.
英文描述： FLEX Pager Decoder
中文描述： FleX創(chuàng)建傳呼機(jī)解碼器
文件頁數(shù)： 29/64頁
文件大小： 341K
代理商： PCD5008
1998 Jun 17
29
Philips Semiconductors
Product specification
FLEX
Pager Decoder
PCD5008
8.6.4
A
DDRESS CALCULATION
Address codeword values generally do not coincide with
(part of) the user address as specified in the CAPCODE.
To find the address codewords corresponding to a user
address a conversion has to be done (Table 24). The type
of conversion depends on the CAPCODE range in which
the user address is located. Note that addresses are
transmitted LSB first (differently to POCSAG).
Short addresses, are transmitted in a single address
codeword where as long addresses are transmitted in two
consecutive address codewords. The first codeword of a
long address contains the lower part of the address, the
second codeword the upper part. By combining two long
address codewords from different banks 6 long address
ranges are created: 1 to 2, 1 to 3, 1 to 4, 2 to 3, 2 to 4 and
3 to 4. Ranges 2 to 4 and 3 to 4 are as yet undefined and
reserved.
Table 24 describes how to calculate the 21 bit address
codeword which is transmitted over the air.
Table 23
Address word range definitions
TYPE
HEX VALUE
Idle word (illegal address)
Long address 1
Short address
Long address 3
Long address 4
Short address (reserved)
Information service address
Network address
Temporary address
Operator messaging address 1F7810 to 1F781F
Short address (reserved)
Long address 2
Idle word (illegal address)
000000
000001 to 008000
008001 to 1E0000
1E0001 to 1E8000
1E8001 to 1F0000
1F0001 to 1F27FF
1F2800 to 1F67FF
1F6800 to 1F77FF
1F7800 to 1F780F
1F7820 to 1F7FFE
1F7FFF to 1FFFFE
1FFFFF
Table 24
Address word calculation
Notes
1.
2.
3.
4.
5.
6.
All numbers are in hexadecimal format.
The MOD operator gives the remainder of an integer division.
CAPCODE refers to the value of the address field in a FLEX
CAPCODE.
The DIV operator is the integer division.
A short address consists of a single codeword.
The upper codeword range in bank 2 is used from the highest address downwards, i.e. the lowest value of the
CAPCODE produces a codeword value of 1FFFFEH.
TYPE
LOWER ADDRESS CODEWORD;
notes 1, 2 and 3
UPPER ADDRESS CODEWORD;
notes 1, 3 and 4
Short address
Long address,
range 1 to 2; note 6
Long address,
ranges 1 to 3 and
1 to 4
Long address,
range 2 to 3
CAPCODE + 8000
note 5
1 + ((CAPCODE
1F9001) MOD 8000)
1FFFFF
((CAPCODE
1F9001) DIV 8000)
1 + ((CAPCODE
1F9001) MOD 8000)
1D8000 + ((CAPCODE
1F9001) DIV 8000)
1F7FFF + ((CAPCODE
1F8FFF) MOD 8000)
1C8000 + ((CAPCODE
1F8FFF) DIV 8000)
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相關(guān)代理商/技術(shù)參數(shù)
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PCD5008H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:FLEX Pager Decoder
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