參數(shù)資料
型號(hào): PCD5003H
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 尋呼電路
英文描述: Advanced POCSAG Paging Decoder
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(yè)數(shù): 22/44頁(yè)
文件大?。?/td> 187K
代理商: PCD5003H
1997 Jun 24
22
Philips Semiconductors
Product specification
Advanced POCSAG Paging Decoder
PCD5003
7.39
Cancelling alerts
Standard POCSAG alerts (manual or automatic) are
cancelled by resetting bit D0 in the alert set-up register.
User defined alerts are cancelled by writing a zero to the
alert cadence register. Any ongoing alert is cancelled
when a reset pulse is applied to input RST.
7.40
Automatic POCSAG alerts
Standard alert patterns have been defined for each
POCSAG call type, as indicated by the function bits in the
address codeword (see Table 1). The timing of these alert
patterns is shown in Fig.9.
When enabled by SPF programming (SPF byte 03, bit D2)
standard POCSAG alerts will automatically be generated
on outputs ATL, ATH, LED and VIB upon call reception.
The alert pattern matches the call type as indicated by the
function bits in the received address codeword.
The original settings of the alert set-up register will be lost.
Bit D0 is reset after completion of the alert.
Fig.9 POCSAG alert timing.
handbook, full pagewidth
FC = 00
FC = 01
FC = 10
FC = 11
tALC
tALP
tALC
tALC
tALC
tALC
tALP
tALP
tALP
tALP
tALP
tALP
MLC252
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