SAA7111A Datasheet, PDF (57/72 Pages) NXP Semiconductors – Enhanced Video Input Processor EVIP

Philips Semiconductors
Enhanced Video Input Processor (EVIP)
Product specification
SAA7111A
17.2.22 SUBADDRESS 1A (READ-ONLY REGISTER)
Table 37 Line-21 text slicer status SA 1A, D3 to D0
I²C-BUS
STATUS BIT
NAME
FUNCTION
F1RDY
F1VAL
F2RDY
F2VAL
new data on field 1 has been acquired (for asynchronous reading); active HIGH
line-21 of field 1 carries valid data; active HIGH
new data on field 2 has been acquired (for asynchronous reading); active HIGH
line-21 of field 2 carries valid data; active HIGH
STATUS BIT
D0
D1
D2
D3
17.2.23 SUBADDRESS 1B (READ-ONLY REGISTER)
Table 38 First decoded data byte of the text slicer SA 1B
I²C-BUS
TEXT DATA
BITS
FUNCTION
BYTE1 (6 to 0) data bit 6 to 0 of first data byte
P1
parity error flag bit; bit goes HIGH when a parity error has occurred
DATA BITS
D6 to D0
D7
17.2.24 SUBADDRESS 1C (READ-ONLY REGISTER)
Table 39 Second decoded data byte of the text slicer SA 1C
I²C-BUS
TEXT DATA
BITS
BYTE2 (6 to 0)
P2
FUNCTION
data bit 6 to 0 of second data byte
parity error flag bit; bit goes HIGH when a parity error has occurred
DATA BITS
D6 to D0
D7
17.2.25 SUBADDRESS 1F (READ-ONLY REGISTER)
Table 40 Status byte SA 1F
I²C-BUS
STATUS BIT
NAME
FUNCTION
CODE
SLTCA
WIPA
GLIMB
GLIMT
FIDT
HLCK
STTC
colour signal in accordance with selected standard has been detected; active
HIGH
slow time constant active in WIPA-mode; active HIGH
white peak loop is activated; active HIGH
gain value for active luminance channel is limited [min (bottom)]; active HIGH
gain value for active luminance channel is limited [max (top)]; active HIGH
identification bit for detected field frequency; LOW = 50 Hz, HIGH = 60 Hz
status bit for locked horizontal frequency; LOW = locked, HIGH = unlocked
status bit for horizontal phase loop; LOW = TV time-constant,
HIGH = VTR time-constant
STATUS BIT
D0
D1
D2
D3
D4
D5
D6
D7
1998 May 15
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