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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST92195D датащи(PDF) 158 Page - STMicroelectronics |
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ST92195D датащи(HTML) 158 Page - STMicroelectronics |
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158 / 249 page  158/249 ST92195C/D - TELETEXT SLICER AND ACQUISITION UNIT TELETEXT SLICER AND ACQUISITION UNIT (Cont’d) 7.7.7 Register Description ACQUISITION PAGE OPEN REGISTER (ACQPOR) R248 - Read/Write Register Page: 34 Reset value: 0000 0000 (00h) Bits 7:0 = POR[7:0] The data packets associated with each bit will be stored or not depending also on the value if the corresponding MLR bit in the ACQMLR register. Refer to the ACQMLR register description. ACQUISITION MAGAZINE LOCKED REGISTER (ACQMLR) R249 - Read/Write Register Page: 34 Reset value: 0000 0000 (00h) Bits 7:0 = MLR[7:0] The associated Data Packets of the corresponding magazine will be stored as described in the following table: ACQUISITION NEW HEADER RECEIVED REG- ISTER (ACQNHRR) R250 - Read/Write Register Page: 34 Reset value: 0000 0000 (00h) Each bit in the ACQNHR register corresponds to a magazine. It is set by hardware if a new header of the corresponding magazine is received and must be reset by software after each VBI. Bits 7:0 = NHR[7:0] New Header Received. 0: No new header received. 1: A new header was received and the storage of the 41 bytes flow depends on the ACQPOR / ACQMLR values shown in the following table. 70 POR7 POR6 POR5 POR4 POR3 POR2 POR1 POR0 70 MLR7 MLR6 MLR5 MLR4 MLR3 MLR2 MLR1 MLR0 MLRi PORi Meaning 10 Magazine locked. No storage even if a header is received 0 0 Page closed, wait for new header 0 1 Page opened. Storage 70 NHR7 NHR6 NHR5 NHR4 NHR3 NHR2 NHR1 NHR0 MLRi PORi NHRi Results 10 - Magazine locked; no storage done 00 0 No storage for that magazine dur- ing the VBI 00 1 Storage started on new header received 01 0 Current page not yet closed; data received or not 01 1 Current page closed; new page started |
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