ST92195C STMicroelectronics, ST92195C Datasheet - Page 158

• Manufacturer Part Number: ST92195C
• Description: 48-96 Kbyte Rom Hcmos Mcu With On-screen Display And Teletext Data Slicer
• Manufacturer: STMicroelectronics

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:
MLRi PORi
POR7 POR6 POR5 POR4 POR3 POR2 POR1 POR0
MLR7 MLR6 MLR5 MLR4 MLR3 MLR2 MLR1 MLR0
7
7
1
0
0
0
0
1
Magazine locked. No storage even if a
header is received
Page closed, wait for new header
Page opened. Storage
Meaning
ST92195C/D - TELETEXT SLICER AND ACQUISITION UNIT
0
0
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
NHR7 NHR6 NHR5 NHR4 NHR3 NHR2 NHR1 NHR0
MLRi PORi NHRi
the 41 bytes flow depends on the ACQPOR /
ACQMLR values shown in the following table.
7
1
0
0
0
0
0
0
0
1
1
0
1
0
1
-
Magazine locked; no storage
done
No storage for that magazine dur-
ing the VBI
Storage started on new header
received
Current page not yet closed; data
received or not
Current page closed; new page
started
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