SAA7120H-01 PHILIPS [NXP Semiconductors], SAA7120H-01 Datasheet - Page 18

• Manufacturer Part Number: SAA7120H-01
• Description: Digital Video Encoder (ConDENC)
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 22 Subaddress 63 to 66 (four bytes to program subcarrier frequency)
Note
1. Examples:
Table 23 Subaddress 67 to 6A
Table 24 Subaddress 6B
1997 Jan 06
FSC0 to FSC3 f
DATA BYTE
L21O0
L21O1
L21E0
L21E1
DATA BYTE
PRCV2
ORCV2
CBLF
PRCV1
ORCV1
TRCV2
SRCV1
DATA BYTE
Digital Video Encoder (ConDENC)
a) NTSC-M: f
b) PAL-B/G: f
first byte of captioning data, odd field
second byte of captioning data, odd field
first byte of extended data, even field
second byte of extended data, even field
LEVEL
LOGIC
multiples of line frequency);
f
of line frequency)
fsc
fsc
fsc
llc
0
1
0
1
0
1
0
1
0
1
0
1
= clock frequency (in multiples
= 227.5, f
= 283.7516, f
= subcarrier frequency (in
polarity of RCV2 as output is active HIGH, rising edge is taken when input, respectively;
default after reset
polarity of RCV2 as output is active LOW, falling edge is taken when input, respectively
pin RCV2 is switched to input; default after reset
pin RCV2 is switched to output
if ORCV2 = HIGH, pin RCV2 provides an HREF signal (Horizontal Reference pulse that is
defined by RCV2S and RCV2E, also during vertical blanking Interval); default after reset
if ORCV2 = LOW and bit SYMP = LOW, signal input to RCV2 is used for horizontal
synchronization only (if TRCV2 = 1); default after reset
if ORCV2 = HIGH, pin RCV2 provides a ‘Composite-Blanking-Not’ signal, for example a
reference pulse that is defined by RCV2S and RCV2E, excluding Vertical Blanking Interval,
which is defined by FAL and LAL
if ORCV2 = LOW and bit SYMP = LOW, signal input to RCV2 is used for horizontal
synchronization (if TRCV2 = 1) and as an internal blanking signal
polarity of RCV1 as output is active HIGH, rising edge is taken when input; default after reset
polarity of RCV1 as output is active LOW, falling edge is taken when input
pin RCV1 is switched to input; default after reset
pin RCV1 is switched to output
horizontal synchronization is taken from RCV1 port (at bit SYMP = LOW) or from decoded
frame sync of “ CCIR 656” input (at bit SYMP = HIGH); default after reset
horizontal synchronization is taken from RCV2 port (at bit SYMP = LOW)
defines signal type on pin RCV1; see Table 25
DESCRIPTION
llc
= 1716
DESCRIPTION
llc
= 1728
FSC = 569408543 (21F07C1FH).
FSC = 705268427 (2A098ACBH).
rounded up; see note 1
FSC
18
=
CONDITIONS
f
------- -
f
fsc
DESCRIPTION
llc
2
LSBs of the respective bytes are encoded
immediately after run-in and framing code, the
MSBs of the respective bytes have to carry the
parity bit, in accordance with the definition of
Line 21 encoding format.
32
,
FSC3 = most significant byte
FSC0 = least significant byte
SAA7120; SAA7121
REMARKS
Preliminary specification
REMARKS