ml86v7667 Oki Semiconductor, ml86v7667 Datasheet - Page 13

• Manufacturer Part Number: ml86v7667
• Description: Ntsc/pal Digital Video Decoder
• Manufacturer: Oki Semiconductor

VBID Detection Block
This block detects data information and copy protection information from the VBI (Vertical Blanking Interval) of
the input luminance signals. The following four types of VBID data can be detected, and the detection line and
detection level can be changed by altering register settings.
*Note: VBID detection may not provide the detection rate of 100% depending on signal status.
OKI Semiconductor
VBID Detection Function
(1) AGC copy protection
Detects whether specified lines include a macrovision AGC pulse (NTSC/PAL) and sets a flag.
# Related registers: $27/AGCD1, $28/AGCD2, $2A/VBIDM, $2B/AIREG, $2D/VFLAG
(2) C. C. (Closed Caption)
Detects whether specified lines include closed caption data (NTSC/PAL), keeps separately the data of even and
odd lines, and sets individual flags.
# Related registers: $23/CCD1, $24/CCD2, $2A/VBIDM, $2B/AIREG, $2D/VFLAG, $2E/CCD00,
(3) WSS (Wide Screen Signaling)
Detects the WSS data in the lines specified by ETSI (European Telecommunications Standards Institute) and
sets a flag (PAL only).
# Related registers: $29/WSSD, $2A/VBIDM, $2B/AIREG, $2D/VFLAG, $38/WSSD0, $39/WSSD1
(4) CGMS (Copy Generation Management System)
Detects the CGMS data in the lines specified by IEC61880 and sets a flag (NTSC only).
# Related registers: $25/CGMS1, $26/CGMS2, $2A/VBIDM, $2B/AIREG, $2D/VFLAG, $32/CGMS00,
(5) Other copy protection detection functions
Detects the color stripes, false pulses, and MV protection and sets flags.
# Related registers: $2B/AIREG, $2C/STATUS, $2D/VFLAG
— : Not used
NTSC ITU-R BT.601
NTSC Square pixel
PAL ITU-R BT.601
PAL Square pixel
Operating mode
12.272727 MHz
14.31818 MHz
NTSC 4fsc
14.75 MHz
13.5 MHz
13.5 MHz
—
—
—
$33/CGMS01, $34/CGMS02, $35/CGMSE0, $36/CGMSE1, $37/CGMSE2
$2F/CCD01, $30/CCDE0, $31/CCDE1
Operating Modes/Sampling Clock Settings
*: Default
$00/MRA[0]=0 *
(Pins 55, 56)
MODE[1:0]
Control pin
[00]
[01]
[10]
[11]
—
—
—
—
$00/MRA[0]=1
$00/MRA[5:3]
Register
*[000]
[001]
[010]
[011]
[100]
[101]
[110]
[111]
24.545454 MHz
Sampling clock
(double-speed)
28.63636 MHz
Pin 51 CLKX2
29.5 MHz
27 MHz
27 MHz
—
—
—
PEDL86V7667-00
ML86V7667
13/31