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Z8623012SSG Datasheet, PDF (28/61 Pages) Zilog, Inc. – ADVANCED PROGRAM BLOCKING AND NTSC LINE 21 XDS DECODER
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CONTROL REGISTERS
REGISTERS SUMMARY
any valid bit position the Interrupt Request Register is equivalent to CLEARing an inter-
rupt request on that bit.
6.1.6 Interrupt Mask Register
TABLE 17. INTERRUPT MASK REGISTER (ADDRESS = 07h)
Bit
7
6
5
4
3
2
res res dXDS res dLOK EOF
R/W
R/W R/W R/W R/W R/W R/W
1
DLE
R/W
0
DAV
R/W
This register identifies which activities in the Interrupt Request Register is used to
cause an interrupt. Setting the bit to 1 enables the interrupt when the correspond-
ing event becomes active. Setting all bits of this register to zero disables inter-
rupts.
6.1.7 Content Advisory Ratings Select Register 1
This register holds the MPAA Content Advisory selections made by the viewer.
TABLE 18. CONTENT ADVISORY RATINGS SELECT REGISTER 1 (ADDRESS = 08h)
Bit
7
6
5
4
3
res Not X NC-17 R
Rated
R/W
R R/W R/W R/W R/W
2
PG-13
R/W
1
PG
R/W
0
G
R/W
D0–G. The Z86230 outputs High on pin 13 when the incoming video program is
G-rated according to the MPAA Ratings standards, and this bit is set to High.
D1–PG. The Z86230 outputs High on pin 13 when the incoming video program is
PG-rated according to the MPAA Ratings standards, and this bit is set to High.
D2-PG-13. The Z86230 outputs High on pin 13 when the incoming video program
is PG-13-rated in MPAA Ratings standards, and this bit is set to High.
D3-R. The Z86230 outputs High on pin 13 when the incoming video program is R-
rated according to the MPAA Ratings standards, and this bit is set to High.
D4-NC-17. The Z86230 outputs High on pin 13 when the incoming video program
is NC-17-rated according to the MPAA Ratings standards, and this bit is set to
High.
D5-X. The Z86230 outputs High on pin 13 when the incoming video program is X-
rated according to EIA-744A and EIA-608A specifications. MPAA no longer rec-
ognizes the X rating.
D6-Not Rated. The Z86230 outputs High on pin 13 when the incoming video pro-
gram is Not Rated according to the MPAA Ratings standards, and this bit is set to
High.
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Z86230—PRELIMINARY
PS000401-TVC0699
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