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參數資料
| 型號： | HT9480 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Pager Controller |
| 中文描述： | 傳呼機控制器 |
| 文件頁數： | 23/57頁 |
| 文件大?。?/td> | 1541K |
| 代理商： | HT9480 |
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The operation of the decoder is controlled by a
pager control address (1EH) in conjunction with
a pager data address (1FH). Upon receipt of a
valid call the data ready interrupt is generated.
The POCSAG paging code
The CCIR Radio paging Code No.1 (POCSAG
Code) is constructed according to the follow-
ing rules:
A transmission consists of a preamble fol-
lowed by a batch of complete code words. Each
batch begins with a synchronization codeword
(SC). The format of the signal is illustrated in
the following Figure.
E ach transmission begins with a preamble to
achieve bit synchronization. The preamble is
a pattern of one and zero; 10101010... re-
peated for a period of at least 576 bits.
Codewords are transmitted in batches. E ach
batch consists of a synchronization codeword
followed by 8 frames. Each frame consists of 2
codewords. The eight frames are numbered 0
through 7. All pagers are similarly divided
into 8 groups. Each pager is assigned to one of
the 8 frames according to the 3 least signifi-
cant bits (LSB) of its 21-bit identity code (ad-
dress). The 3 bits are called “Receiver Identity
Code” (RIC).
POCSAG code structure
LCD timing
HT9480
23
23th Feb ’98
相關PDF資料 |
PDF描述 |
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| HT95168 | Caller ID Telephone IC |
| HT9580 | Character Pager Controller |
| HT95A30P | 8-Bit LCD Type Phone Controller MCU |
| HT95L300 | 8-Bit LCD Type Phone Controller MCU |
| HT95A20P | 8-Bit LCD Type Phone Controller MCU |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HT9480_02 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:8-Bit Numerical Pager Controller MCU |
| HT94804 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Numeric Pager Controller ??(Simplified Chinese Version Only) |
| HT-95 | 制造商:FCI 功能描述:RATCHET CRIMP TOOL 制造商:FCI 功能描述:RATCHET CRIMP TOOL; Crimp Size:32AWG to 22AWG; For Use With:Crimp-to-Wire PV Receptacles & Pins ;RoHS Compliant: NA |
| HT95168 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Caller ID Telephone IC |
| HT9580 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Character Pager Controller |
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