AK8859VN

[AK8859VN]
AK8859VN
NTSC/PAL/SECAM Digital Video Decoder
Overview
The AK8859VN is a single-chip digital video decoder for composite and S-video signals. Its output data is in
YCbCr format and compliant with ITU-R BT.601 and ITU-R BT.656 standard interface. Its output also
included HD / VD / FIELD and DVALID signals. Its operational temperature is between ranges of -40°C ~
105°C. Microprocessor access is via I2C interface.
Features
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Decodes composite and S-Video signals NTSC-J, M, 4.43 / PAL-B, D, G, H, I, N, Nc, M, 60 / SECAM
2 input channel
10-bit 27MHz ADC 2 channel
Digital PGA
Adaptive Automatic Gain Control ( AGC )
Auto Color Control ( ACC )
Image adjustment ( Contrast, Saturation, Brightness, Hue, Sharpness )
Automatic input signal detection
Adaptive 2-D Y/C separation
Output data format: ITU-R BT.601 ( YCbCr, 4:2:2, 8bit )
Output interface: ITU-R BT.656 (4:2:2, 8bit parallel) with EAV/SAV
HD, VD, FIELD and DVALID signal timing output
Closed Caption signal decoding (output via register)
VBID (CGMS-A) signal decoding (output via register)
WSS signal decoding (output via register)
Macrovision signal detection (Macrovision certification)
Powerdown function
I2C control
Core supply voltage: 1.70 ~ 2.00V
I/O power supply: 1.70 ~ 3.60V
Operating temperature: -40°C ~ 105°C
32-pin QFN package ( 5.0mm x 5.0mm )
(Notice) This device is protected by U.S. patent number 6,600,873 and other intellectual property rights.
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2010/04
[AK8859VN]
Contents
[1.] Functional block diagram..................................................................................................................... 5
[2.] Pin assignment...................................................................................................................................... 6
[3.] Pin function description ....................................................................................................................... 7
[3.1.] Pin function ..................................................................................................................................... 7
[3.2.] Output pin state .............................................................................................................................. 8
[4.] Electrical characteristics...................................................................................................................... 9
[4.1.] Absolute maximum ratings ........................................................................................................... 9
[4.2.] Recommended operating conditions ........................................................................................... 9
[4.3.] DC characteristics .......................................................................................................................... 9
[4.4.] Analog characteristics ................................................................................................................. 10
[4.4.1.] Input range ............................................................................................................................. 10
[4.4.2.] ADC ......................................................................................................................................... 10
[4.4.3.] Current consumption ............................................................................................................ 10
[4.4.4.] Crystal circuit block................................................................................................................11
[5.] AC Timing............................................................................................................................................. 12
[5.1.] External clock input ..................................................................................................................... 12
[5.2.] Clock output (DTCLK) .................................................................................................................. 12
[5.3.] Output data timing........................................................................................................................ 13
[5.4.] Power down sequence................................................................................................................. 13
[5.5.] Power-on sequence...................................................................................................................... 14
[5.6.] I2C bus input timing...................................................................................................................... 15
[5.6.1.] Timing 1 .................................................................................................................................. 15
[5.6.2.] Timing 2 .................................................................................................................................. 15
[6.] Functional overview............................................................................................................................ 16
[7.] Functional Description ....................................................................................................................... 17
[7.1.] Analog interface............................................................................................................................ 17
[7.2.] Clock mode ................................................................................................................................... 17
[7.3.] Analog clamp circuit .................................................................................................................... 17
[7.4.] Input video signal categorization ............................................................................................... 19
[7.5.] Auto detection mode of input signal .......................................................................................... 20
[7.6.] Limiting auto detection candidates of input signal .................................................................. 21
[7.7.] VBI blanking interval data output ............................................................................................... 22
[7.8.] Output data code Min/Max........................................................................................................... 22
[7.9.] V-bit ................................................................................................................................................ 23
[7.10.] Slice function .............................................................................................................................. 23
[7.11.] VBI period decode data.............................................................................................................. 24
[7.12.] Output pin status ........................................................................................................................ 25
[7.13.] HD pin output.............................................................................................................................. 26
[7.14.] VD_F and VAR pin output selection ......................................................................................... 26
[7.15.] Output pin polarity ..................................................................................................................... 27
[7.16.] Phase correction ........................................................................................................................ 27
[7.17.] No signal output ......................................................................................................................... 28
[7.18.] Active video data start position ................................................................................................ 28
[7.19.] VLOCK mechanism .................................................................................................................... 29
[7.20.] Y/C separation............................................................................................................................. 29
[7.21.] EAV/SAV code ............................................................................................................................. 29
[7.22.] Output Interface.......................................................................................................................... 30
[7.22.1.] 656 interface ......................................................................................................................... 30
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[7.22.2] Output timing signal diagram .............................................................................................. 31
[7.23] Digital Pixel interpolator ............................................................................................................. 32
[7.24] Clock generation ......................................................................................................................... 33
[7.24.1.] Line-locked clock mode ...................................................................................................... 33
[7.24.2.] Frame-locked clock mode................................................................................................... 33
[7.24.3.] Fixed-clock mode................................................................................................................. 33
[7.24.4.] Auto transition mode........................................................................................................... 33
[7.25.] PGA (Programmable Gain Amp) ............................................................................................... 33
[7.26.] AGC (Auto Gain Control) ........................................................................................................... 34
[7.27.] ACC (Auto Color Control) .......................................................................................................... 35
[7.28.] Sharpness adjustment ............................................................................................................... 35
[7.29.] Color Killer .................................................................................................................................. 35
[7.30.] Image quality adjustment .......................................................................................................... 36
[7.30.1.] Contrast adjustment ............................................................................................................ 36
[7.30.2.] Brightness adjustment ........................................................................................................ 36
[7.30.3.] Color saturation adjustment............................................................................................... 37
[7.30.4.] HUE adjustment ................................................................................................................... 37
[7.31.] VBI information decoding.......................................................................................................... 38
[7.32.] Internal status indicator............................................................................................................. 39
[7.32.1.] Input signal indicator........................................................................................................... 39
[7.32.2.] Status of VLOCK mechanism ............................................................................................. 39
[7.32.3.] Interlace signal indicator..................................................................................................... 39
[7.32.4.] Color killer operational........................................................................................................ 39
[7.32.5.] Clock mode........................................................................................................................... 39
[7.32.6.] Luminance decode overflow .............................................................................................. 39
[7.32.7.] Color decode overflow ........................................................................................................ 40
[7.32.8.] AGC status............................................................................................................................ 40
[7.33.] Macrovision signal detection .................................................................................................... 40
[7.34.] Auto detection result of input video signal ............................................................................. 41
[8.] Device control interface ..................................................................................................................... 42
[8.1.] I2C bus SLAVE Address ............................................................................................................... 42
[8.2.] I2C control sequence .................................................................................................................... 42
[8.2.1.] Write sequence ...................................................................................................................... 42
[8.2.2.] Read sequence....................................................................................................................... 42
[8.2.3.] I2C General Call ...................................................................................................................... 42
[9.] Register definitions............................................................................................................................. 44
[9.1.] Register setting overview ............................................................................................................ 46
[9.1.1.] Sub Address 0x00 “Input Channel Select Register (R/W)”................................................ 46
[9.1.2.] Sub Address 0x01 “Clamp Control Register (R/W)” .......................................................... 47
[9.1.3.] Sub Address 0x02 “Input Video Standard Register (R/W)” ............................................... 48
[9.1.4.] Sub Address 0x03 “NDMODE Register (R/W)” ................................................................... 49
[9.1.5.] Sub Address 0x04 “Output Format Register (R/W)” .......................................................... 50
[9.1.6.] Sub Address 0x05 “Output Pin Control Register (R/W)” ................................................... 52
[9.1.7.] Sub Address 0x06 “Output Pin Polarity Set Register (R/W)” ............................................ 53
[9.1.8.] Sub Address 0x07 “Control 0 Register (R/W)” ................................................................... 54
[9.1.9.] Sub Address 0x08 “Control 1 Register (R/W)” ................................................................... 55
[9.1.10.] Sub Address 0x09 “Reserved Register (R/W)” ................................................................. 55
[9.1.11.] Sub Address 0x0A “PGA1 Control Register (R/W)” ......................................................... 56
[9.1.12.] Sub Address 0x0B “PGA2 Control Register (R/W)” ......................................................... 56
[9.1.13.] Sub Address 0x0C “AGC and Color Control Register (R/W)”......................................... 57
[9.1.14.] Sub Address 0x0D “Contrast Control Register (R/W)” .................................................... 58
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[9.1.15.] Sub Address 0x0E “Brightness Control Register (R/W)” ................................................ 59
[9.1.16.] Sub Address 0x0F “Saturation Control Register (R/W)” ................................................. 60
[9.1.17.] Sub Address 0x10 “HUE Control Register (R/W)”............................................................ 60
[9.1.18.] Sub Address 0x11 “High Slice Data Set Register (R/W)”................................................. 61
[9.1.19.] Sub Address 0x12 “Low Slice Data Set Register (R/W)” ................................................. 61
[9.1.20.] Sub Address 0x13 “Request VBI Information Register (R/W)” ....................................... 62
[9.1.21.] Sub Address 0x14 “Reserved Register (R/W)” ................................................................. 62
[9.1.22.] Sub Address 0x15 “Status 1 Register (R Only)”............................................................... 63
[9.1.23.] Sub Address 0x16 “Status 2 Register (R Only)”............................................................... 64
[9.1.24.] Sub Address 0x17 “Macrovision Status Register (R Only)”............................................ 65
[9.1.25.] Sub Address 0x18 “Input Video Status Register (R Only)” ............................................. 66
[9.1.26.] Sub Address 0x19 “Closed Caption 1 Register (R Only)” ............................................... 67
[9.1.27.] Sub Address 0x1A “Closed Caption 2 Register (R Only)”............................................... 67
[9.1.28.] Sub Address 0x1B “WSS 1 Register (R Only)”................................................................. 67
[9.1.29.] Sub Address 0x1C “WSS 2 Register (R Only)”................................................................. 67
[9.1.30.] Sub Address 0x1D “Extended Data 1 Register (R Only)” ................................................ 67
[9.1.31.] Sub Address 0x1E “Extended Data 2 Register (R Only)” ................................................ 67
[9.1.32.] Sub Address 0x1F “VBID 1 Register (R Only)”................................................................. 67
[9.1.33.] Sub Address 0x20 “VBID 2 Register (R Only)” ................................................................. 67
[9.1.34.] Sub Address 0x21 “Device and Revision ID Register (R Only)”..................................... 68
[11.] Package .............................................................................................................................................. 70
[12.] Marking............................................................................................................................................... 71
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[AK8859VN]
[1.] Functional block diagram
TEST
XTI
TEST
LOGIC
XTO
SELA
Clock
Module
SDA SCL PDN
Microprocessor
Interface
Timing Controller
Digital PLL
VBI
Decoding
HD
Sync
Separation
10-bit
ADC
CLAMP
AIN1
10-bit
ADC
CLAMP
AIN2
PGA1
MUX
PGA2
Decimation
Filter
CVBS
Y
YC
Separation
VD_F
Y
Luminance
Process
Y
VAR
Output
Buffer
DTCLK
Cb
C
Chroma
Process
DATA[7:0]
Cr
VREF
VCOM
MS1179-E-00
VRP
VRN
IREF
AVDD
AVDD
AVSS
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DVDD
DVSS
PVDD
DVSS
DVSS
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[AK8859VN]
[2.] Pin assignment
IREF
VCOM
AIN2
DVSS
XTI
XTO
DVDD
DVSS
23
22
21
20
19
18
17
VRN
25
16
HD
VRP
26
15
VD_F
AIN1
27
14
VAR
AVDD
28
13
DATA0
AVSS
29
12
DATA1
PDN
30
11
DATA2
SELA
31
10
DATA3
TEST
32
9
DATA4
1
2
3
4
5
6
7
8
SCL
SDA
DTCLK
DATA7
DATA6
DATA5
DVSS
PVDD
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[3.] Pin function description
[3.1.] Pin function
Pin
No.
Symbol
P/S
I/O
1
SCL
P
I
2
SDA
P
I/O
3
DTCLK
P
O
4
DATA7
P
5
DATA6
P
6
DATA5
P
7
DVSS
D
8
PVDD
P
O
(I/O)
O
(I/O)
O
(I/O)
Functional Description
I2C clock input pin. Connect to PVDD via a pull-up register.
Hi-z input possible when PDN=L.
I2C data pin. Connect to PVDD via a pull-up register.
Hi-z input possible when PDN=L.
Data clock output pin. The output clock is approximately 27MHz.
DATA output pin (MSB).
DATA output pin.
DATA output pin.
G
Digital ground pin.
P
I/F power supply pin.
O
(I/O)
O
(I/O)
O
(I/O)
O
(I/O)
O
(I/O)
O
(I/O)
O
(I/O)
O
(I/O)
DATA output pin.
9
DATA4
P
10
DATA3
P
11
DATA2
P
12
DATA1
P
13
DATA0
P
14
VAR
P
15
VD_F
P
16
HD
P
17
DVSS
D
G
Digital ground pin.
18
DVDD
D
P
Digital power supply pin.
DATA output pin.
DATA output pin.
DATA output pin.
DATA output pin (LSB).
DVALID / FIELD / NSIG / LINE signal output pin.
DVALID/FIELD/NSIG/LINE signal output can be selected by register setting.
VD / FIELD signal output pin.
VD/ FIELD signal output can be selected by register setting.
HD signal output pin.
Crystal connection pin. Use 24.576 MHz crystal.
When PDN=L, output level is DVSS.
If crystal is not used, connect to NC or DVSS.
Crystal connection pin. Use 24.576 MHz crystal resonator.
20
XTI
D
I
For input from 24.576 MHz crystal oscillator, use this pin.
[Power Supply]: A-AVDD, D-DVDD, P-PVDD
[I/O]: I–Input pin, O–Output pin, I/O–In Out pin, P–Power Supply pin, G–Ground pin
See section [3.2.](Output pin state) for relationship between PDN-pin and each register.
19
XTO
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D
O
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Pin
No.
Symbol
P/S
I/O
21
DVSS
D
G
22
AIN2
A
I
23
VCOM
A
O
24
IREF
A
O
25
VRN
A
O
26
VRP
A
O
27
AIN1
A
I
28
AVDD
A
P
Analog power supply pin.
29
AVSS
A
G
Analog ground pin.
30
PDN
P
I
Power-down control pin. Hi-z input is prohibited.
Low: Power-down.
High: Normal operation.
31
SELA
P
I
I2C bus address selector pin.
32
TEST
P
I
Pin for test mode setting. Connect to DVSS.
Functional Description
Digital ground pin.
Analog video signal input pin.
Connect via 0.033μF capacitor and voltage-splitting resistors. If not used,
connect to NC.
Common internal voltage for AD converter.
Connect to AVSS via ≥0.1μF (+/−5% accuracy) ceramic capacitor.
Analog circuit reference current setting pin.
Connect to AVSS via 6.8KΩ (+/−1% accuracy) resistor.
Internal reference negative voltage pin for AD converter.
Connect to AVSS via ≥0.1 µF (+/−1% accuracy) ceramic capacitor.
Internal reference positive voltage pin for AD converter.
Connect to AVSS via ≥0.1 µF (+/−1% accuracy) ceramic capacitor.
Analog video signal input pin.
Connect via 0.033μF capacitor and voltage-splitting resistors. If not used,
connect to NC.
[Power Supply]: A-AVDD, D-DVDD, P-PVDD
[I/O]: I–Input pin, O–Output pin, I/O–In Out pin, P–Power Supply pin, G–Ground pin
See section [3.2.](Output pin state) for relationship between PDN-pin and each register.
[3.2.] Output pin state
PDN
-pin
Register setting
Digital output pins state
OEN
-bit
DL
-bit
VD_FL
-bit
VAR
-bit
HL
-bit
L
X
X
X
X
X
Low
H
H
X
X
X
X
Hi-z
H
L
L
L
L
L
DOUT
DOUT
H
L
H
H
H
H
Low
Low
MS1179-E-00
DATA[7:0]
AKM Confidential
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VD_F
VAR
HD
DTCLK
DOUT
DOUT
DOUT
Low
Low
DOUT
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[AK8859VN]
[4.] Electrical characteristics
[4.1.] Absolute maximum ratings
Parameter
Min.
Max.
Unit
-0.3
-0.3
2.2
4.2
V
Analog input pin voltage
-0.3
AVDD+0.3(≦2.2)
V
Digital input pin voltage D
-0.3
DVDD+0.3(≦2.2)
V
XTI,XTO pin
Digital output pin voltage P
-0.3
PVDD+0.3(≦4.2)
V
(*1)
Input pin current (Iin)
-10
10
mA
Power supply pin is
not included.
Storage temperature
-40
125
°C
Supply voltage
AVDD, DVDD
PVDD
Notes
(*1) Collective term for DTCLK, DATA[7:0], HD, VD_F, VAR, SELA, PDN, SDA, SCL, TEST pins.
・The above supply voltages are referenced to ground pins (DVSS=AVSS) at 0V (Reference Voltage).
・All power supply grounds (AVSS, DVSS) should be at the same electric potential.
・If digital output pins are connected to data bus, the data bus operating voltage should be in the same
range as shown above from the digital output pin.
・The setting other than above may cause the eternal destruction to the device.
・Normal operational is not guaranteed for the above setting.
[4.2.] Recommended operating conditions
Parameter
Min.
Typ.
Max.
Unit
Condition
Analog supply voltage (AVDD)
Digital supply voltage (DVDD)
1.70
1.80
2.00
V
AVDD=DVDD
I/F supply voltage (PVDD)
1.70
1.80
3.60
V
PVDD≧DVDD
Operating temperature (Ta)
-40
105
°C
・The above supply voltages are referenced to ground pins (DVSS=AVSS) at 0V (Reference Voltage).
・All power supply grounds (AVSS, DVSS) should be at the same electric potential.
[4.3.] DC characteristics
(Ta: -40°C~105°C / DVDD=AVDD=1.7V~2.0V / PVDD=DVDD~3.6V)
Parameter
Digital input high voltage
Digital input low voltage
(*1)
Symbol
Min.
VIH
0.7PVDD
Typ.
Max.
Unit
V
(*1)
VIL
0.3PVDD
V
(*1)
IL
±10
uA
Digital input leak current
(*2)
VOH
(*2)
VOL
Digital output Hi-z leak current(*2)
Digital output high voltage
Condition
V
IOH = -600uA
0.2PVDD
V
IOL = 1mA
HIL
±10
uA
I2C (SDA)L output
VOLC
0.4
0.2PVDD
V
XTI input high voltage
VXIH
XTI input low voltage
VXIL
Digital output low voltage
0.8PVDD
0.8DVDD
IOLC = 3mA
PVDD≧2.0V
PVDD＜2.0V
V
0.2DVDD
V
(*1) Collective term for SELA, PDN, SDA, SCL, TEST pins.
(*2) Collective term for DTCLK, DATA[7:0], HD, VD_F, VAR pins.
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[4.4.] Analog characteristics
(AVDD=1.8V, Ta=25˚C)
[4.4.1.] Input range
Parameter
Symbol
Min.
Typ.
Max.
Unit
Input range
VIMX
0
0.50
0.60
Vpp
Condition
[4.4.2.] ADC
Parameter
Symbol
Min.
Typ.
Max.
Unit
Resolution
RES
10
bit
Operating clock frequency
FS
27
MHz
Integral nonlinearity
INL
±1.0
±2.0
LSB
Differential nonlinearity
DNL
±0.5
±1.0
LSB
S/N
SN
53
dB
S/(N+D)
SND
51
dB
ADC internal common voltage
VCOM
0.96
V
ADC internal positive VREF
VRP
1.36
V
ADC internal negative VREF
VRN
0.56
V
Condition
Fin=1MHz*, FS=27MHz,
Input range=0.6Vpp
Fin=1MHz*, FS=27MHz,
Input range=0.6Vpp
[4.4.3.] Current consumption
(AVDD = DVDD = PVDD = 1.8V, Ta = -40 ~ 105˚C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Condition
45
62
mA
S(Y/C) video signal input
27
mA
S(Y/C) video signal input
19
mA
Composite video signal input*
10
mA
No-signal input*
S(Y/C) video signal input
With crystal (Xtal) connected.
Load condition: CL=15pF
（Active mode）
Total
Analog block
IDD
AIDD
Digital block
DIDD
13
mA
I/F block
PIDD
5
mA
Total
SIDD
≦1
Analog block
ASIDD
≦1
uA
Digital block
DSIDD
≦1
uA
I/F block
PSIDD
≦1
uA
（Power down mode）
200
uA
*Reference value.
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[AK8859VN]
[4.4.4.] Crystal circuit block
Parameter
Symbol
Frequency
f0
Frequency tolerance
Δf / f
Load capacitance
CL
Effective equivalent resistance
Re
Crystal parallel capacitance
CO
Min.
Typ.
Max.
24.576
Unit
Notes
MHz
±100
15
ppm
pF
100
0.9
Ω
(*1)
pF
XTI terminal external connection
CXI
22
pF
If CL=15pF
load capacitance
XTO terminal external connection
CXO
22
pF
If CL=15pF
load capacitance
(*1) Effective equivalent resistance generally may be taken as Re = R1 x (1+CO/CL)2, where R1 is the
crystal series equivalent resistance.
Example connection
AK8859VN internal circuit
Rf
XTI pin
XTO pin
External circuit
Rd (* 2)
CXI = 22pF
CXO = 22pF
(*2) Determine need for and appropriate value of limiting resistance (Rd) in accordance with the crystal
specifications.
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[AK8859VN]
[5.] AC Timing
(1.70≦DVDD≦2.00, DVDD≦PVDD≦3.60, Load condition: CL=15pF)
[5.1.] External clock input
fCLK
tCLKL
tCLKH
0.8DVDD
0.5DVDD
0.2DVDD
Parameter
Symbol
Min.
Typ.
Max.
Input CLK
fCLK
CLK pulse width H
tCLKH
16
nsec
CLK pulse width L
tCLKL
16
nsec
24.576
Frequency tolerance
Unit
MHz
±100
ppm
[5.2.] Clock output (DTCLK)
fDTCLK
0.5PVDD
Parameter
Symbol
DTCLK
fDTCLK
MS1179-E-00
Min.
Typ.
27
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Max.
Unit
MHz
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[AK8859VN]
[5.3.] Output data timing
0.5PVDD
(*1)
DTCLK
tDS
tDH
0.5PVDD
Output Data
(*2)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Output Data Setup Time
tDS
10
nsec
Output Data Hold Time
tDH
10
nsec
(*1) It is possible to invert the polarity of DTCLK via register setting.
(*2) Output Data is general term of DATA[7:0], HD, VD_F, and VAR.
[5.4.] Power down sequence
sVREF
VIH
PDN
VIL
VIL
nPDN
aPDN
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power down pulse removal period
nPDN
50
nsec
Power down pulse width
aPDN
500
nsec
VREF stabilization period
sVREF
10
msec
At power down, DTCLK pin, DATA[7:0] pin, HD pin, VD_F pin and VAR pin is Low output.
After power down released, DATA[7:0] pin, HD pin, VD_F pin and VAR pin is stay Low output if no register
setting apply. Register setting only apply after VREF stabilization period.
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[AK8859VN]
[5.5.] Power-on sequence
PWUPTIME
AVDD/DVDD/PVDD
sVREF
VIH
PDN
VIL
rPDN
Parameter
Symbol
Min.
Typ.
Max.
Unit
POWERUP TIME
PWUPTIME
100
msec
Power down release
rPDN
500
nsec
VREF stabilization period
sVREF
10
msec
At power-on, PDN must be set to ground level (PDN=Low).
AVDD/DVDD/PVDD should be raised at power-on less than 100msec.
After power down released, DATA[7:0] pin, HD pin, VD_F pin and VAR pin is stay Low output if no register
setting apply. Register setting only apply after VREF stabilization period.
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[AK8859VN]
[5.6.] I2C bus input timing
[5.6.1.] Timing 1
tBUF tHD : STA
tR
tF
tSU : STO
VIH
SDA
VIL
tF
tR
VIH
SCL
VIL
tLOW
tSU : STA
Parameter
Symbol
Min.
Bus Free Time
tBUF
1.3
usec
Hold Time (Start Condition)
tHD:STA
0.6
usec
Clock Pulse Low Time
tLOW
1.3
usec
Input Signal Rise Time
tR
300
nsec
Input Signal Fall Time
tF
300
nsec
Setup Time(Start Condition)
tSU:STA
0.6
usec
Setup Time(Stop Condition)
tSU:STO
0.6
usec
2
Typ.
Unit
2
Note : The timing relating to the I C bus is as stipulated by the I C bus specification,
and not determined by the device itself. For details, see I2C bus specification.
[5.6.2.] Timing 2
tHD : DAT
VIH
SDA
VIL
tHIGH
VIH
SCL
VIL
TSU : DAT
Parameter
Data Setup Time
Symbol
tSU:DAT
Min.
100
Max.
(*1)
Data Hold Time
tHD:DAT
0.0
Clock Pulse High Time
tHIGH
0.6
Unit
nsec
0.9
(*2)
usec
usec
2
(*1) If I C is used in standard mode, tSU: DAT ≥250ns is required.
(*2) This condition must be met if the AK8859VN is used with a bus that does not extend tLOW (to use
tLOW at minimum specification).
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[AK8859VN]
[6.] Functional overview
○ It accepts composite video signal (CVBS) and S-Video with 2 input pins available for this purpose. The
decode signal is selected via register setting.
○ It can decode the following input video signal via register setting:
• NTSC-M, J / NTSC-4.43 / PAL-B,D,G,H,I,N / PAL-Nc / PAL-M / PAL-60 / SECAM
• In addition, it has auto detection mode via register setting which automatically recognizes the input
signal category.
○ It output interface is ITU-R BT.656 compliant.
(It may not be possible, however to meet these requirement if the input signal quality is poor.)
○ For connection of devices having no ITU-R BT.656 interface, it shows the active video region by
DVALID signal output.
○ Its analog circuit of the AK8859VN clamps the input signal to the sync tip. Its digital circuit clamps the
digitized input data to the pedestal level.
○ Its VBI data slicing function enables output of the slicing results as ITU-R BT.601 format digital data.
○ It has digital PGA built internally and can be adjusted in the range of −4.06dB～6.90dB by register
setting.
○ Its adaptive AGC function enables measurement of the input signal size and determination of the input
signal level.
○ It performs adaptive two-dimensional Y/C separation, in which its phase detector selects the best
correlation from among vertical, horizontal, and diagonal samples and optimum Y/C separation mode.
○ Its digital pixel spacing adjustor can align vertical positions by vertical pixel positioning.
○ Its operates in line-locked, frame-locked, or fixed clock mode with automatic transition and optimum
mode selection by automatic scanning.
○ Its ACC function enables measurement of the input signal color burst size and determination of the
appropriate color burst level.
○ It judges the chroma signal quality from the color burst of the input signal, and can apply color kill if the
signal quality is judged insufficient. It can also apply color kill if the color decode PLL clock control.
○
Its image quality adjustment function includes contrast, brightness, hue and color saturation
adjustment.
○ It can decode conflated Closed Caption Data, Closed Caption Extended Data, WSS, VBID(CGMS-A)
and write them separately to the storage register.
○ Its monitoring register enables monitoring of a number of internal functions.
○
Its enables Macrovision signal type notification, in cases where the Macrovision signal is included in
the decoded data.
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[AK8859VN]
[7.] Functional Description
[7.1.] Analog interface
The AK8859VN accepts composite (CVBS) and S-Video (Y/C) signals, with 2 input pins available for this
purpose. The decode signal is selected via the register.
Input signal selection
Name
Sub Address: 0x00 [1:0]
Definition
Notes
[AINSEL1 : AINSEL0]
AINSEL0
[00]: AIN1 (CVBS)
[01]: AIN2 (CVBS)
~
[10]: AIN1(Y) / AIN2(C) (S-Video)
AINSEL1
[11]: No-signal input (Analog circuit is set to power-down*)
*Clamp and ADC block is power-downed.
In used with AINSEL[1:0]=[11], Ouput data is depend on NSIGMD[1:0]–bit. However, in used with
NSIGMD[1:0]=[10], DATA[7:0]-pin, HD-pin, VD_F-pin and VAR-pin output Low.
[7.2.] Clock mode
The AK8859VN input clock can be selected between internal built crystal and external clock input via
register setting. The input clock frequency is 24.576MHz.
Clock mode setting
Sub Address: 0x00 [7]
Name
Definition
Notes
CLKMD
[0]: For crystal
[1]: External clock input (clock generator)
[7.3.] Analog clamp circuit
The analog circuit of AK8859VN clamps the input signal to the reference level. The way to clamp the input
signal is show as follows.
○ When decode composite (CVBS) video signal
Clamp timing is performs by sync tip clamp (analog sync tip clamp).
The clamp timing pulse, with its origin at the falling edge of the internally synchronized and separated
sync signal, is generated at approximately the central position of the sync signal.
○ When decode S-Video (Y/C) signal
(Y signal): Clamp timing is performs by sync tip clamp (analog sync tip clamp).
The clamp timing pulse, with its origin at the falling edge of the internally synchronized and
separated sync signal, is generated at approximately the central position of the sync signal.
(C signal): Clamp timing is performs by middle clamp (analog middle clamp).
The clamp timing pulse is generated exactly at the same timing of Y signal clamp pulse.
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[AK8859VN]
Clamp timing pulse
Y
Analog sync tip clamp
CVBS
C
Analog sync tip clamp
Analog middle clamp
Furthermore, the AK8859VN can change the position, width, and current value of clamp pulse via register.
Set the current value of clamp in analog block
Sub Address: 0x01 [1:0]
Name
Definition
Notes
CLPG0
~
CLPG1
[00]: Min.
[01]: Middle 1 {=(Min. x 3)}
[10]: Middle 2 {=(Min. x 5)}
[11]: Max. {=(Min. x 7)}
Default setting is
[00]
Set the clamp pulse width
Sub Address: 0x01 [4]
Name
Definition
Notes
CLPWIDTH
[0]: 275nsec
[1]: 555nsec
Default setting is [0]
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[AK8859VN]
[7.4.] Input video signal categorization
The AK8859VN video input signal categorization can be selected via register. The AK8859VN can decode
the following video signal:
NTSC-M, J
NTSC-4.43
PAL-B, D, G, H, I, N
PAL-Nc
PAL-M
PAL-60
SECAM
Input video signal categorization register setting is show as follows.
Subcarrier frequency setting
Sub Address: 0x02 [1:0]
Name
Definition
Notes
VSCF0
~
VSCF1
[ VSCF1 : VSCF0 ] ( MHz )
[00]: 3.57954545 (NTSC-M,J)
[01]: 3.57561149 (PAL-M)
[10]: 3.58205625 (PAL-Nc)
[11]: 4.43361875(PAL-B,D,G,H,I,N,60, NTSC-4.43, SECAM)
Color encode format setting
Name
Definition
VCEN0
~
VCEN1
[VCEN1 : VCEN0]
[00]: NTSC
[01]: PAL
[10]: SECAM
[11]: Reserved
Sub Address: 0x02 [3:2]
Notes
Line frequency setting
Sub Address: 0x02 [4]
Name
Definition
Notes
VLF
[0]: 525-Line (NTSC-M,J, NTSC-4.43, PAL-M,60)
[1]: 625-Line (PAL-B,D,G,H,I,N, PAL-Nc, SECAM)
Monochrome mode setting
Name
Sub Address: 0x02 [5]
Definition
Notes
[0]: Not monochrome (monochrome mode OFF)
[1]: Decode as monochrome signal (monochrome mode ON)
When composite video signal decode is selected, in the monochrome mode (BW=1), the input signal is
treated as a monochrome signal, and all sampling data digitized the AD converter passes through the
luminance process and is processed as luminance signal, and the CbCr code is output as 0x80 (601 level
data) regardless of the input. When S-video (Y/C) signal decode is selected, only luminance signal is
decode as an output.
BW
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[AK8859VN]
Setup processing setting
Name
Sub Address: 0x02 [6]
Definition
Notes
[0]: Setup absent setting
[1]: Setup present setting
With the Setup present setting, the luminance and color signals are processed as follows:
Yout = (Yin-7.5)/0.925
Uout = Uin/0.925, Vout = Vin/0.925
SETUP
[7.5.] Auto detection mode of input signal
The video input signal of the AK8859VN can be automatically detected (auto detection mode) via register.
Settings for auto detection mode of input signal
Name
Definition
AUTODET
[0]: OFF (manual setting)
[1]: ON
Sub Address: 0x02 [7]
Notes
In auto detection mode, the AK8859VN can detect the following parameters.
Number of lines per frame:
525 (Line)
625 (Line)
Subcarrier frequency:
3.57954545 (MHz)
3.57561149 (MHz)
3.58205625 (MHz)
4.43361875 (MHz)
Color encoding formats:
NTSC
PAL
SECAM
Monochrome signal*:
Not monochrome
Monochrome
(*Note: Automatic monochrome detection is active if the color kill setting is ON.)
The detected result of auto detection mode is reflected to Input Video Status Register.
This enables the host to distinguish among the formats NTSC-M,J / NTSC-4.43 / PAL-B,D,G,H,I,N / PAL-M
/ PAL-Nc / PAL-60 / SECAM and monochrome.
It should be noted that it does not detect NTSC-M, NTSC-J or PAL-B,D,G,H,I,N formats.
Sub Address: 0x18 “Input Video Status Register”
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
FIXED
UNDEF
ST_B/W
ST_VLF
ST_VCEN1
ST_VCEN0
ST_VSCF1
ST_VSCF0
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[AK8859VN]
[7.6.] Limiting auto detection candidates of input signal
In auto detection mode, the candidates for detection can be limited via register.
Sub Address: 0x03 “NDMODE Register”
Name
NDPALM
NDPALNC
NDSECAM
Reserved
NDNTSC443
NDPAL60
ND525L
ND625L
Definition
Notes
[0]: PAL-M candidate
[1]: PAL-M non-candidate
[0]: PAL-Nc candidate
[1]: PAL-Nc non-candidate
[0]: SECAM candidate
[1]: SECAM non-candidate
Reserved
[0]: NTSC-4.43 candidate
[1]: NTSC-4.43 non-candidate
[0]: PAL-60 candidate
[1]: PAL-60 non-candidate
[0]: 525Line candidate
[1]: 525Line non-candidate
[0]: 625Line candidate
[1]: 625Line non-candidate
In making the above register settings, the following restrictions apply.
1. Setting both NDNTSC443-bit and NDPAL60-bit to 1 is prohibited.
2. Setting both ND525L-bit and ND625L-bit to 1 is prohibited.
3. To limit candidate formats, it is necessary to have the auto detection mode OFF while first setting
the register to non-limited signal status and next the NDMODE settings, and then setting the auto
detection mode to ON.
Set auto detection mode to OFF
Set Input Video Standard Register to non-limited signal status
Enter NDMODE Register setting
Set auto detection mode to ON
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[AK8859VN]
[7.7.] VBI blanking interval data output
In the AK8859VN, the settings for the output code and vertical blanking intervals for the output signal are as
follows.
Setting vertical blanking intervals (VBLANK)
Setting
Name
525/625
Vertical blanking interval
value
[001]
[010]
[011]
VBIL0
~
VBIL2
[000]
[101]
[110]
[111]
[100]
Sub Address: 0x04 [2:0]
Notes
525
Line1~Line20 及び Line263.5~Line283.5
625
Line623.5~Line24.5 及び Line311~Line336
525
Line1~Line21 及び Line263.5~Line284.5
625
Line623.5~Line25.5 及び Line311~Line337
525
Line1~Line22 及び Line263.5~Line285.5
625
Line623.5~Line26.5 及び Line311~Line338
525
Line1~Line19 及び Line263.5~Line282.5
625
Line623.5~Line23.5 及び Line311~Line335
525
Line1~Line16 及び Line263.5~Line279.5
625
Line623.5~Line20.5 及び Line311~Line332
525
Line1~Line17 及び Line263.5~Line280.5
625
Line623.5~Line21.5 及び Line311~Line333
525
Line1~Line18 及び Line263.5~Line281.5
625
Line623.5~Line22.5 及び Line311~Line334
Reserved
Reserved
+1Line
+2Lines
+3Lines
default
-3Lines
-2Lines
-1Line
As indicated in this table, the default values are:
(525i) Line1~Line19 and Line263.5~Line282.5
(625i) Line623.5~Line23.5 and Line311~Line335
The other specific values are set by entering the difference from these default values.
[7.8.] Output data code Min/Max
The AK8859VN data code output format (Y:Cb:Cr=4:2:2) is compliant with ITU-R BT.601.
All internal calculating operations are made with Min = 1, Max = 254.
With LIMIT601-bit set to [1], codes 1~15 and 236~254 are respectively clipped to 16, 235.
Setting for output data code Min/Max
Name
Setting value
[0]
LIMIT601
[1]
Sub Address: 0x04 [3]
Output data code Min.~Max.
Y: 1~254
Cb, Cr: 1~254
Y: 16~235
Cb, Cr: 16~240
Notes
Default
In case of LIMIT601=[0] and EAVSAVN-bit=[1]*, the output code Min/Max is 0～255.
*Sub Address: 0x08 [2]
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[AK8859VN]
[7.9.] V-bit
In the AK8859VN, the settings for V-bit handling in ITU-R BT.656 format are as follows.
Setting for V-bit handling in ITU-R BT.656 format
Name
Setting value
Sub Address: 0x04 [4]
525-line
V-bit=0
625-line
V-bit=1
[0]
Line10~Line263
Line1~Line9
BT. 656-3
Line273~Line525 Line264~Line272
TRSVSEL [1]
Line20~Line263
Line1~Line19
BT. 656-4 and
Line283~Line525 Line264~Line282
SMPTE125M
These values are unaffected by the VBIL[2:0]-bit setting.
V-bit=0
V-bit=1
Line23~Line310
Line336~Line623
Line1~Line22
Line311~Line335
Line624~Line625
[7.10.] Slice function
The results of VBI slicing by the AK8859VN slicing function are output as ITU-R BT.601 digital data. The
VBI interval is set via VBIL[2:0]-bits. VBI slicing is performed in the luminance in the luminance signal
processing path, so that the Cb/Cr value of the effective line 601 output code is output at the same level as
the corresponding luminance signal.
Setting for slice level
Name
Definition
SLLVL
[0]: 25IRE
[1]: 50IRE
Sub Address: 0x04 [5]
Hi/Low Slice Data Set Register of output data, as follows.
Setting for higher of two values resulting from slicing
Name
Definition
H0
~
H7
Default: 0xEB(235)
Note that a setting of 0x00 or 0xFF corresponds to a special 601 code.
Setting for lower of two values resulting from slicing
Name
Definition
L0
~
L7
Default: 0x10(16)
Note that a setting of 0x00 or 0xFF corresponds to a special 601 code.
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Sub Address: 0x11
Sub Address: 0x12
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[AK8859VN]
* (mV)
NTSC/PAL
601 Code
714/700
235
100% White
357/350
127
50IRE threshold with setting
SLLVL=[1]
180/175
63
25IRE threshold with setting
SLLVL=[0]
L
`````
L
Cb/Y
````
``````
L
L
Cr/Y
H
H
Cb/Y
````
``````
H
H
Cr/Y
L
L: Value set by Low Slice Data
Set Register
H: Value set by High Slice Data
Set Register
```````
*Threshold values (mV) are approximate
High/Low conversion is performed for either the Cb/Y or the Cr/Y combination. The above figure is an
example of the conversion points for Cb/Y.
[7.11.] VBI period decode data
The AK8859VN decode data during VBI period can be selected via register.
Settings for decode data in the VBI period
Setting
Name
Decode data
value
VBIDEC0
~
VBIDEC1
[00]
Black level output
[01]
Monochrome mode
[10]
Sliced data output
[11]
Reserved
Sub Address: 0x04 [7:6]
Notes
Y = 0x10
Cb/Cr = 0x80
Y = data converted to 601 level
Cb/Cr = 0x80
Y/Cb/Cr = value corresponding to slice level
(Value set at Hi/Low Slice Data Set Register)
Reserved
Note: (525i) Lne1～Line9 and Line263.5～Line272.5
(625i) Line623.5～Line6.5 and Line311～Line388
During the above period, these values are unaffected by the VBIDEC[1:0]-bits setting.
The output code during this period is black level code (Y=0x10, Cb/Cr=0x80).
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[7.12.] Output pin status
The AK8859VN output from the DATA[7:0]-pin, VD_F-pin, VAR-pin and HD-pin can each be fixed at Low
via register.
Setting each digital output pins fixed to Low output
Name
Sub Address: 0x05 [3:0]
Definition
Notes
[0]: Normal output
[1]: [D7: D0] pin output fixed at Low.
[0]: Normal output
[1]: VD_F pin output fixed at Low.
[0]: Normal output
[1]: VAR pin output fixed at Low.
[0]: Normal output
[1]: HD pin output fixed at Low.
DL
VD_FL
VARL
HL
Default: Low output
Default: Low output
Default: Low output
Default: Low output
In addition, the output from the DTCLK, DATA[7:0], VD_F, VAR and HD pins can be set to Hi-z output via
register.
Setting digital output pins* to Hi-z output
Name
Sub Address: 0x05 [4]
Definition
Notes
[0]: Normal output
Default: [0] Normal output
[1]: Hi-Z output
*Collective term for DTCLK, DATA[7:0], HD, VD_F and VAR pins.
OEN
However, the PDN pin states will have priority regardless of these register setting. When PDN pin is Low
output, the output from the DTCLK, DATA[7:0], VD_F, VAR and HD pins is Low output.
The relation between PDN pin and digital output pin status is show as follows:
Register setting
Digital output pins status
PDN
-pin
OEN-bit
DL-bit
VD_FL-bit
VAR-bit
HL-bit
L
X
X
X
X
X
Low
H
H
X
X
X
X
Hi-z
H
L
L
L
L
L
DOUT
DOUT
H
L
H
H
H
H
Low
Low
DATA[7:0]
VD_F
VAR
HD
DTCLK
DOUT
DOUT
DOUT
Low
Low
DOUT
*DOUT is normal output.
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[AK8859VN]
[7.13.] HD pin output
The Horizontal Sync signal of the AK8859VN is output from HD pin.
Pin name
HD
525-Line
625-Line
Low for 4.7us at
Low for 4.7us at
15.734 kHz interval.
15.625 kHz interval.
[7.14.] VD_F and VAR pin output selection
The output signal from VD_F and VAR pins is show as follows by register setting.
Pin name
VD_F
Output
signal
Notes
525-Line
625-Line
VD
Line4~Line6 and
Line266.5~Line269.5: Low
Line1~Line3.5 and
Line313.5~Line315: Low
FIELD
ODD-Field: Low,
DVALID
Active video data period. Active-Low
FIELD
ODD-Field: Low,
NSIG
VAR
LINE
EVEN-Field: High
EVEN-Field: High
Sync status of video input signal
Low: Signal present (synchronized)
High: Signal absent (not synchronized)
In auto detection mode, it shows the result of line number detected in input
video signal.
525LINE: Low, 625LINE: High
If the auto detection mode is OFF, the setting of current VLF-bit* is output
through this pin.
(*Sub-address:0x02-“bit4”)
The output signal of VD_F and VAR pins is show as follows.
Settings for VD/FIELD signals selection
Sub Address: 0x05 [5]
Name
Definition
Notes
VD_FSEL
[0]: VD signal output
[1]: FIELD signal output
Settings for VAR pin output signals selection
Sub Address: 0x05 [7:6]
Name
Definition
VARSEL0
~
VARSEL1
[ VARSEL1 : VARSEL0 ]
[00]: DVALID signal output
[01]: FIELD signal output
[10]: NSIG signal output
[11]: LINE signal output
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[AK8859VN]
[7.15.] Output pin polarity
The output signals from each digital output pin can be inverted via register.
Setting for output pin polarity
Sub Address: 0x06 [7:5]
Name
Pin name
Output signal
HDP
HD
VD_FP
VD_F
VARP
VAR
Setting value
[0]
[1]
HD
Active Low
Active High
VD
Active Low
Active High
Field
Low: Odd-Field
High: Even-Field
Low: Even-Field
High: Odd-Field
DVALID
Active Low
Active High
Field
Low: Odd-Field
High: Even-Field
Low: Even-Field
High: Odd-Field
NSIG
High: Signal absent
Low: Signal absent
LINE
Low: 525Line
High: 625Line
Low: 625Line
High: 525Line
In addition, it is possible to invert the output signal from the DTCLK pin.
Setting for polarity of DTCLK signal output
Sub Address: 0x06 [4]
Name
Definition
CLKINV
[0]: Normal output (write in data at rising edge)
[1]: Phase of data and clock is invert (write in data at falling edge)
[7.16.] Phase correction
In PAL-B, D, G, H, I, N, Nc, 60, and M decoding, the AK8859VN performs phase correction for each line.
With this function ON, color averaging is performed for each line. In the adaptive phase correction mode,
interline phase correlation is sampled and color averaging is performed for correlated samples.
Interline color averaging is also performed in NTSC-M and J decoding.
No phase correction or color averaging is performed in SECAM decoding.
Settings for phase correction
Sub Address: 0x07 [1:0]
Name
Definition
DPAL0
~
DPAL1
[ DPAL1 : DPAL0 ]
[00]: Adaptive phase correction mode
[01]: Phase correction ON
[10]: Phase correction OFF
[11]: Reserved
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[AK8859VN]
[7.17.] No signal output
If no input signal is found (as shown by control bit NOSIG-bit), the output signal is black-level, blue-level
(blueback), or input-state (sandstorm), depending on the register setting. (*Sub-address:0x15-“bit0”)
Settings for output signals for no input signal
Sub Address: 0x07 [3:2]
Name
Definition
NSIGMD0
~
NSIGMD1
[ NSIGMD1 : NSIGMD0 ]
[00]: Black-level output
[01]: Blue-level (blueback) output
[10]: Input-state (sandstorm) output
[11]: Reserved
In case of S-Video (Y/C) signal input, no signal output is only on Y signal.
It should be noted that there is no signal output detect on C signal.
[7.18.] Active video data start position
The start position of active video data of the AK8859VN can be advance/delay via register. 1 sample
advance/delay of data rate is 13.5MHz.
Setting for start position of active video data
Sub Address: 0x07 [6:4]
Name
Definition
ACTSTA0
~
ACTSTA2
[ ACTSTA2 : ACTSTA0 ]
[001]: 1Sample delay
[010]: 2Sample delay
[011]: 3Sample delay
[000]: Normal start position
[101]: 3Sample advance
[110]: 2Sample advance
[111]: 1Sample advance
[100]: Reserved
The default position of start position is shown below (ITU-R BT.601 standard interface).
OH
OH
122sample(525Line)
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Active video start
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[AK8859VN]
[7.19.] VLOCK mechanism
The AK8859VN synchronizes internal operation with the input signal frame structure. If, for example, the
frame structure of the input signal comprises 524 lines, the internal operation will have structure of 524
lines per frame. This mechanism is termed the VLOCK mechanism. If an input signal changes from a
structure of 525 lines per frame to one of 524 lines per frame, internal operation will change accordingly,
and the VLOCK mechanism will go to UnLock via a pull-in process. In such case, the UnLock status can be
confirmed via the control register [VLOCK-bit*]. Note that the time required for locking of the VLOCK
mechanism upon channel or other input signal switching will be about 4 frames (*Sub-address:0x15-“bit1”)
Furthermore, the AK8859VN synchronizes internal operation with the vertical SYNC of the input signal.
This mechanism is termed the direct LOCK mechanism.
Setting for Vertical SYNC mechanism
Sub Address: 0x07 [7]
Name
Definition
VERTS
Vertical SYNC mechanism
[0]: VLOCK mechanism
[1]: Direct LOCK mechanism
[7.20.] Y/C separation
The adaptive two-dimensional Y/C separation of the AK8859VN utilizes a co-relation detector to select the
best-correlated direction from among vertical, horizontal, and diagonal samples, and selects the optimum
Y/C separation mode.
For NTSC-4.43, PAL-60, and SECAM inputs, the Y/C separation is one-dimensional only, regardless of the
setting.
Setting for Y/C separation
Setting
YC separation
Name
Value
mode
YCSEP0
~
YCSEP1
Sub Address: 0x08 [1:0]
Notes
[00]
Adaptive
[01]
1-D
1-D (BPF)
[10]
2-D
(NTSC-M,J, PAL-M): 3 Line 2-D
(PAL-B,D,G,H,I,N,Nc): 5 Line 2-D
[11]
Reserved
[7.21.] EAV/SAV code
The EAV/SAV code of ITU-R BT.656 standard interface can be output with the output data DATA[7:0] by the
register setting.
Setting for EAV/SAV code output
Sub Address: 0x08 [2]
Name
Definition
EAVSAVN
[0]: EAV/SAV code is fed to the output data.
[1]: EAV/SAV code is not output.
In case of LIMIT601=[0]*, if EAVSAVN is setting to [1], the output code range is limit to 0～255.
*Sub Address: 0x04 [3]
MS1179-E-00
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[AK8859VN]
[7.22.] Output Interface
[7.22.1.] 656 interface
[7.22.1.1.] Line-locked and frame-locked clock modes
The AK8859VN data output in both of these modes are compliant with ITU-R BT.656, which is requires the
following samples and line numbers.
- Number of samples for 1 line:
858 samples (525i) / 864 samples (625i)
- Number of lines for 1 frame: 525 lines / 625 lines
It may not be possible, however to meet these requirement if the input signal quality is poor.
In the event of output-stage buffer failure, line drop/repeat processing will be performed.
A line drop or a line repeat will result in output signal with 524/624 or 526/626 lines per frame respectively.
Line drop/repeat processing may be performed at any line in the frame.
[7.22.1.2.] Fixed-clock mode
In fixed-clock mode, operation is at an internally generated 27 MHz clock, from a 24.576 MHz input clock.
The output signal is therefore not synchronized with the input signal, and thus not ITU-R BT.656 compliant.
Data is output in SAV format. As shown in the following figure, EAV is guaranteed for 720 pixels from SAV,
but the number of pixels from EAV to SAV is not.
SAV
EAV
720 pixels
858 / 864 ( NTSC / PAL ) pixels ± α
When the fixed-clock mode is performed, the active area of the output data is determined by SAV standard.
MS1179-E-00
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[AK8859VN]
[7.22.2] Output timing signal diagram
[7.22.2.1.] Line-locked and frame-locked clock modes
When the AK8859VN is connected to the system with no ITU-R BT.656 interface, HD, VD, DVALID and
FIELD signals is output.
The relations between HD, VD and FIELD signals are shown as follow.
525-Line input (For example, composite video signal input timing is shown below)
CVBS
523
HD
524
525
1
2
3
4
5
6
7
8
9
10
11
VD
FIELD
ODD
EVEN
CVBS
261
HD
262
263
264
265
266
267
268
269
270
271
272
274
273
VD
ODD
FIELD
EVEN
625-Line input (For example, composite video signal input timing is shown below)
CVBS
HD
620
621
622
623
624
625
1
2
3
4
5
6
7
8
VD
FIELD
CVBS
HD
VD
ODD
EVEN
308
FIELD
309
310
311
312
313
314
ODD
315
316
317
318
319
320
321
EVEN
The relations between HD signal, DVALID signal and EAV/SAV code are shown in the following timing
diagram.
DTCLK
HD
DVALID
DATA [7:0]
FF
00
128CLK
00
SAV Cb0
Y0
Cr0
Y1
Cb1
Y2
Cr1
1440CLK
244CLK
(264CLK)
FF
00
00
EAV
FF
32CLK
(24CLK)
*The numbers shown in the ( ) is refer to clock number of 625-Line.
MS1179-E-00
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[AK8859VN]
[7.22.2.2.] Fixed-clock mode
In fixed-clock mode, the internal clock is not synchronized with the output signal, but a space of 122/132
(NTSC/PAL) pixels is guaranteed between the horizontal sync signal and the start of the active video
interval.
(For example, composite video signal input timing is shown below and 1pixel = 2CLK)
Video Signal
HD
DVALID
····· SAV
Cb0
Y0
Cr0
Y1
Cb1
Y2
Cr1
Y3
······
Y718 Cr359 Y719
FF
··············
128CLK
244CLK
(264CLK)
32CLK
(24CLK)
1440CLK
Active video interval
Fixed
Not fixed
[7.23] Digital Pixel interpolator
The digital pixel interpolator of the AK8859VN aligns vertical pixel positions in both frame-lock and
fixed-clock operating modes. The pixel interpolator can be set to ON or OFF via register. With a register
setting of AUTO, the pixel interpolator is OFF or ON depending on the clock mode, as follows.
Line-locked clock mode
OFF
Frame-locked clock mode
ON
Fixed-clock mode
ON
Settings for pixel interpolator operation
Setting Value Interpolator operation
Name
INTPOL0
~
INTPOL1
MS1179-E-00
[00]
Auto
[01]
ON
[10]
OFF
[11]
Reserved
Sub Address: 0x08 [5:4]
Notes
Dependent on clock mode.
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[AK8859VN]
[7.24] Clock generation
The AK8859VN operates in the following three clock modes:
[7.24.1.] Line-locked clock mode
The “line-locked clock” is generated by PLL using horizontal sync signal within the input signal. If no input
signal is present, the AK8859VN will switch from this mode to fixed-clock mode.
[7.24.2.] Frame-locked clock mode
The “frame-locked clock” is generated by PLL using vertical sync signal within the input signal. If no signal
is present, the AK8859VN will switch from this mode to fixed-clock mode.
[7.24.3.] Fixed-clock mode
No PLL control is applied in this mode, which is enabled only when either it is set via the register or no input
signal is present. The sampling clock in this mode is 27MHz or 54MHz. In this mode, data capture cannot
be performed in EAV (end of active video), and must be performed in SAV (start of active video) format. The
number of pixels per line is not guarantee in this mode, but data guarantee is performed in the interval from
SAV to EAV.
[7.24.4.] Auto transition mode
The AK8859VN transition function automatically switches among the above modes and selects the
optimum one, and when no input signal is present, it switches to the fixed-clock mode.
Setting for selection of clock generation mode
Name
CLKMODE0
~
CLKMODE1
Setting value
Clock generation mode
[00]
Automatic
[01]
Line-locked
[10]
Frame-locked
[11]
Fixed-clock
Sub Address: 0x08 [7:6]
Notes
[7.25.] PGA (Programmable Gain Amp)
The AK8859VN digital PGA is built internally.
The digital PGA value can be set in range −4.06dB～6.90dB.
Default gain setting is 0x3C(HEX)=0.00dB.
PGA gain equation:
Gain(dB) =
⎛ (2.5 × PGA) + 251.5 ⎞
20 LOG⎜
⎟
401.5
⎝
⎠
*PGA:PGA1orPGA2 register value(Dec.)
At the default setting, when the composite video signal input with 0.5Vpp is input to the AIN pin, the decode
gain setting is set to appropriate range.
MS1179-E-00
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[AK8859VN]
PGA1 is used for CVBS and Y signals gain processing. PGA2 is used for C signal gain processing.
Setting for PGA1 value
Sub Address: 0x0A [7:0]
Name
Definition
PGA1_0
~
PGA1_7
PGA1 gain setting.
PGA gain is set by above equation.
Setting for PGA2 value
Sub Address: 0x0B [7:0]
Name
Definition
PGA2_0
~
PGA2_7
PGA2 gain setting.
PGA gain is set by above equation.
This register also can be used to read the current setting of the AGC setting.
If AGC is enable, PGA1[7:0]-bit and PGA2[7:0]-bit setting value has no effect.
If AGC is disable, PGA1[7:0]-bit and PGA2[7:0]-bit setting is effective and the gain setting can be manually
entered.
[7.26.] AGC (Auto Gain Control)
The AGC of the AK8859VN measures the size of the input signal (i.e. the difference between the sync tip
and pedestal levels), and adjusts the PGA value to bring the sync signal level to 286mV/300mV.
The AGC function in the AK8859VN is adaptive, and thus includes peak AGC as well as sync AGC. Peak
AGC is effective for input signals in which the sync signal level is appropriate and only the active video
signal is large.
Sync signal level of composite video signal and S (Y/C) video signal input are shown as follows.
NTSC-M,J, NTSC-4.43, PAL-M…………………………286mV
PAL-B,D,G,H,I,N, PAL-Nc, PAL-60, SECAM…………. 300mV
Setting for ON/OFF of AGC
Name
Definition
AGC
[0]: AGC OFF
[1]: AGC ON
Sub Address: 0x0C [0]
Setting for AGC non-sensing range
Name
Definition
AGCC0
~
AGCC1
[ AGCC1 : AGCC0 ]
[00]: ±2LSB
[01]: ±3LSB
[10]: ±4LSB
[11]: None
MS1179-E-00
Sub Address: 0x0C [3:2]
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[AK8859VN]
[7.27.] ACC (Auto Color Control)
The ACC of the AK8859VN measures the level of the input signal color burst and adjusts to the appropriate
level. The ACC is not applicable to SECAM input signal.
NTSC-M,J, NTSC-4.43, PAL-M…………………………286mV
PAL-B,D,G,H,I,N, PAL-Nc, PAL-60…………. ………… 300mV
Setting for ON/OFF of ACC
Name
Definition
ACC
[0]: ACC OFF
[1]: ACC ON
Sub Address: 0x0C [5]
The ACC and Color saturation functions operate independently. If ACC is enabled, the color saturation
adjustment is applied to the signal that has been adjusted to the appropriate level by the ACC.
[7.28.] Sharpness adjustment
Sharpness adjustment is performed on the luminance signal. The filter characteristic is shown in the
following diagram. A sharp image can be obtained by selection of the filter with the appropriate
characteristics.
SHARP
Y signal (before)
Filter
Y signal (after)
Gain [dB]
(ON/OFF)
Delay
Frequency [MHz]
Setting for sharpness adjustment
Name
Definition
SHARP
[0]: No filtering
[1]: Filter
Sub Address: 0x0C [4]
[7.29.] Color Killer
In CVBS or S-video input, the chroma signal quality of the input signal is determined by comparison of its
color burst level against the threshold setting in the color killer control register. If the level is below the
threshold, the color killer is activated, resulting in processing of the input as a monochrome signal and thus
with CbCr data fixed at 0x80.
Setting for color killer (Enable/Disable) activation
Name
Definition
CKILLDIS
[0]: Enable
[1]: Disable
MS1179-E-00
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Sub Address: 0x0C [7]
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[AK8859VN]
[7.30.] Image quality adjustment
Image quality adjustments consist of contrast, brightness, color saturation, and hue adjustment.
[7.30.1.] Contrast adjustment
Setting for contrast adjustment inclination
Register
Sub Address: 0x0D [6:0]
Definition
[CONTSEL-bit =[0]*]
YOUT = (CONT / 64) x ( YIN - 128) +128
[CONTSEL-bit =[1]*]
YOUT = (CONT / 64) X YIN
CONT0
~
CONT6
YOUT: Contrast obtained by the calculation
YIN: Contrast before the calculation
CONT: Contrast gain factor (register setting value)
The gain factor can be set in the range {0~ (127 / 64)} in 1/64 step.
Default setting value is 0x40.
As the register setting shown in the above table, contrast adjustment inclination can be selected between
50% and 0%.
Setting for contrast adjustment inclination
Register
Definition
CONTSEL
[0]: 50%
[1]: 0%
Sub Address: 0x0C [6]
[7.30.2.] Brightness adjustment
Setting for brightness adjustment
Name
Sub Address: 0x0E [6:0]
Definition
YOUT = YIN + ( BR x 2 )
BR0
~
BR6
YOUT: Brightness obtained by the calculation
YIN: Brightness before the calculation
BR: Brightness gain factor (register setting value)
The gain factor can be set in the range {-128 ~ 126} in step of 2.
The setting is in 2’s complement.
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[AK8859VN]
[7.30.3.] Color saturation adjustment
Setting for color saturation adjustment
Name
Sub Address: 0x0F [6:0]
Definition
COUT = (SAT / 64) X CIN
SAT0
~
SAT6
COUT: Saturation obtained by the calculation
CIN: Saturation before the calculation
SAT: Saturation gain factor (register setting value)
The gain factor can be set in the range {0~ (127 / 64)} in 1/64 step.
Default setting value is 0x40.
[7.30.4.] HUE adjustment
Setting for HUE adjustment
Sub Address: 0x10 [6:0]
Name
Definition
HUE0
~
HUE 6
The phase rotation can be set in the range of ±45° in 1/128step (about 0.70step).
The setting is in 2’s complement.
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[AK8859VN]
[7.31.] VBI information decoding
The AK8859VN decodes closed-caption, closed-caption-extended, VBID(CGMS), and WSS signals on the
vertical blanking signal, and writes the decoded data into a storage register. The AK8859VN reads each
data bit in Request VBI Information Register (Sub Address: 0x13 [3:0]) as a decoding request and
thereupon enters a data wait state. Data detection and decoding to the storage register are then
performed which indicates the presence or absence of data at STATUS 2 Register (Sub Address: 0x16
[3:0]) for host. The host can therefore determine the stored values by reading the respective storage
registers. The value in each storage register is retained until a new value is written in by data renewal. For
VBID data (CGMS-A), the CRCC code is decoded and only the arithmetic result is stored in the register.
Signal
Superimposed line
Notes
Closed Caption
Line21
525-Line
Closed Caption Extended Data
Line284
525-Line
VBID
Line20 / 283
Line20 / 333
525-Line
625-Line
WSS
Line23
625-Line
The storage registers for each of the signal types are as follows. For storage bit allocations, please refer to
the respective register setting descriptions (Sub Address: 0x19 ~ 0x20).
Closed Caption 1 Register, Closed Caption 2 Register, WSS 1 Register, WSS 2 Register, Extended Data 1
Register, Extended Data 2 Register, VBID 1 Register, VBID 2 Register.
START
[Request VBI Information Register]
xxRQ-bit = 1
(Decode request)
[Status 2 Register] Read
(Check Decode Detection)
No
Request-bit = 1 ?
YES
Read each storage register
END
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[AK8859VN]
[7.32.] Internal status indicator
The AK8859VN internal status can be acknowledged by reading the following registers.
[7.32.1.] Input signal indicator
Indicates presence or absence of signal
Name
Setting value
NOSIG
Sub Address: 0x15 [0]
Definition
[0]
Signal detected
[1]
No signal detected
[7.32.2.] Status of VLOCK mechanism
Indicates status of VLOCK
Name
Setting value
VLOCK
Sub Address: 0x15 [1]
Definition
[0]
Synchronized
[1]
Not synchronized
[7.32.3.] Interlace signal indicator
Indicates interlace or non-interlace of input signal
Name
FRMSTD
Setting value
Definition
[0]
Input signal 525/625 interlaced
[1]
Input signal not 525/625 interlaced
[0]
Not operation
[1]
Operation
[7.32.5.] Clock mode
Indicates status of clock mode
Name
Setting value
SCLKMODE
Notes
Sub Address: 0x15 [2]
Notes
[7.32.4.] Color killer operational
Indicates status of color killer (ON/OFF)
Name
Setting value
Definition
COLKILON
Notes
Sub Address: 0x15 [3]
Notes
Sub Address: 0x15 [5:4]
Definition
[00]
Fixed-clock
[01]
Line-locked clock
[10]
Frame-locked clock
[11]
Reserved
Notes
[7.32.6.] Luminance decode overflow
Indicates status of luminance decode result after passage through AGC block.
Sub Address: 0x15 [6]
Name
PKWHITE
MS1179-E-00
Setting value
Definition
[0]
Normal
[1]
Overflow
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Notes
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[AK8859VN]
[7.32.7.] Color decode overflow
Indicates status of color decode result after passage through ACC block.
Sub Address: 0x15 [7]
Name
OVCOL
Setting value
Definition
[0]
Normal
[1]
Overflow
Notes
[7.32.8.] AGC status
Indicates status of adaptive AGC
Name
Sub Address: 0x16 [5]
Setting value
AGCSTS
Notes
[0]
Sync AGC operation
[1]
Peak AGC operation
[7.33.] Macrovision signal detection
The AK8859VN can detect a decode signal contains Macrovision signal.
The detection result can be confirmed via register.
Status of Macrovision signal detection.
Name
AGCDET
CSDET
CSTYPE
MS1179-E-00
Sub Address: 0x17 [2:0]
Definition
[0]: No Macrovision AGC process detected.
[1]: Macrovision AGC process detected.
[0]: No color stripe process detected.
[1]: Color Stripe process detected.
[0]: Color Stripe Type2 in input signal.
[1]: Color Stripe Type3 in input signal.
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[AK8859VN]
[7.34.] Auto detection result of input video signal
In auto detection mode, the result can be acknowledged by reading the following register.
Indicates result and status of auto detection mode
Name
ST_VSCF0
~
ST_VSCF1
ST_VCEN0
~
ST_VCEN1
ST_VLF
ST_BW
UNDEF
FIXED
Sub Address: 0x18 [7:0]
Definition
Input video signal subcarrier frequency indicator
[ ST_VSCF1 : ST_VSCF0 ] ( MHz )
[00]: 3.57954545 (NTSC-M,J)
[01]: 3.57561149 (PAL-M)
[10]: 3.58205625 (PAL-Nc)
[11]: 4.43361875 (PAL-B,D,G,H,I,N,60 , NTSC-4.43)
Input signal color encode format indicator
[ST_VCEN1 : ST_VCEN0]
[00]: NTSC
[01]: PAL
[10]: SECAM
[11]: Reserved
Input signal line number indicator
[0]: 525-Line (NTSC-M,J , NTSC-4.43 , PAL-M,60)
[1]: 625-Line (PAL-B,D,G,H,I,N,Nc , SECAM)
Input signal monochrome indicator*
[0]: Not monochrome
[1]: Monochrome
Input signal detection indicator
[0]: Input signal detected
[1]: Input signal not detected
Input signal detection process status
[0]: Detection process in progress
[1]: Detection process completed
*Monochrome auto detection is enabled if the color killer setting is ON(COLKILL-bit = [1]).
If the user has deliberately entered the B/W-bit setting, input signal detection is limited to 525/625 line
detection only.
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[AK8859VN]
[8.] Device control interface
The AK8859VN is controlled via I2C bus control interface, as described below.
[8.1.] I2C bus SLAVE Address
The I2C slave address can be selected by a SELA pin setting of either [1000100] and [1000101].
Slave Address
SELA pin status MSB
LSB
Pulldown [Low]
1
0
0
0
1
0
0
R/W
Pullup [High]
1
0
0
0
1
0
1
R/W
[8.2.] I2C control sequence
[8.2.1.] Write sequence
After receiving a write-mode slave address first byte, the AK8859VN receives the sub-address in the
second byte and data in the subsequent bytes. The write sequence may be single-byte or multi-byte.
(a) Single-byte Write sequence
S
Slave Address
w
8-bit
A
Sub Address
A
Data
A
1-bit
8-bit
1-bit
8-bit
1-bit
(b) Multi-byte (m-bytes) Write sequence (Sequential Write Operation)
Slave
Sub
Data
A
S
w A
Data(n) A
Address
Address(n)
(n+1)
8-bit
1-bit
8-bit
1-bit
8-bit
1-bit
A
‘’’’’’’
1-bit
8-bit
stp
Data
(n+m)
A
8-bit
1-bit
stp
[8.2.2.] Read sequence
After receiving a read-mode slave address as first byte, the AK8859VN sends data in the second and
subsequent bytes.
Slave
Sub
Slave
A rS
S
w A
R A Data1 A Data2 A Data3 A
‘’’‘’
Address
Address(n)
Address
8-bit
1
8-bit
1
8-bit
1
8-bit
1
8-bit
1
8-bit
1
’‘’’’’‘’’
‘’‘
Data n
!A
8-bit
1
stp
[8.2.3.] I2C General Call
AK8859VN respond to General Call of I2C.
If second byte after receiving General Call is 0x06(HEX), AK8859VN initialize its register.
S
DATA[7:0]-pin
output:
MS1179-E-00
General Call Address
A
Second Byte
A
0x00 (Hex. 8-bit)
1-bit
0x06 (Hex. 8-bit)
1-bit
Normal data output
H/L indefinite data output
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stp
Low output(Default State)
2010/04
[AK8859VN]
Abbreviations are follows.
S: Start Condition
A: Acknowledge (SDA Low )
stp: Stop Condition
rS: repeated Start Condition
!A: Not Acknowledge (SDA High)
R/W 1: Read 0: Write
: Received from master device (normally microprocessor)
: Output by slave device (AK8859VN)
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[AK8859VN]
[9.] Register definitions
Sub
Address
Register
Default
R/W
Function
0x00
Input Channel Select Register
0x00
R/W
Input channel setting
0x01
Clamp Control Register
0x00
R/W
Analog clamp circuit setting register
0x02
Input Video Standard Register
0x00
R/W
Input video signal setting
0x03
NDMODE Register
0x00
R/W
Auto detection limit setting
0x04
Output Format Register
0x00
R/W
Output data format setting
0x05
Output Pin Control Register
0x0F
R/W
Output pin status setting
0x06
Output Pin Polarity Set Register
0x00
R/W
Output pin polarity setting
0x07
Control 0 Register
0x00
R/W
Control register
0x08
Control 1 Register
0x00
R/W
Control register
0x09
Reserved Register
0x00
R/W
Reserved Register
0x0A
PGA1 Control Register
0x3C
R/W
PGA1 gain setting
0x0B
PGA2 Control Register
0x3C
R/W
PGA2 gain setting
0x0C
AGC and Color Control Register
0x00
R/W
AGC and Color Control
0x0D
Contrast Control Register
0x40
R/W
Contrast adjustment
0x0E
Brightness Control Register
0x00
R/W
Brightness adjustment
0x0F
Saturation Control Register
0x40
R/W
Color saturation adjustment
0x10
HUE Control Register
0x00
R/W
HUE adjustment
0x11
High Slice Data Set Register
0xEB
R/W
VBI Slice Data High setting
0x12
Low Slice Data Set Register
0x10
R/W
VBI Slice Data Low setting
0x13
Request VBI Information Register
0x00
R/W
VBI interval decode request setting
0x14
Reserved Register
0x00
R/W
Reserved Register
0x15
Status 1 Register
R
Internal status indicator
0x16
Status 2 Register
R
Internal status indicator
0x17
Macrovision Status Register
R
Input Macrovision signal indicator
0x18
Input Video Status Register
R
Input signal detection indicator
0x19
Closed Caption 1 Register
R
Closed Caption data indicator
0x1A
Closed Caption 2 Register
R
Closed Caption data indicator
0x1B
WSS 1 Register
R
WSS data indicator
0x1C
WSS 2 Register
R
WSS data indicator
0x1D
Extended Data 1 Register
R
Closed Caption Extended data indicator
0x1E
Extended Data 2 Register
R
Closed Caption Extended data indicator
0x1F
VBID 1 Register
R
VBID data indicator
0x20
VBID 2 Register
R
VBID data indicator
0x21
Device and Revision ID Register
R
Device ID and Revision ID
MS1179-E-00
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Sub
Address
0x22
~
0x2F
Register
Default
R/W
Function
Reserved Register
0x00
R/W
Reserved Register
0x30
Reserved Register
0x0E
R/W
Reserved Register
0x31
~
0x3F
Reserved Register
0x00
R/W
Reserved Register
For all other registers, write-in is prohibited.
For all reserved registers, write-in must be limited to the default value.
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[9.1.] Register setting overview
[9.1.1.] Sub Address 0x00 “Input Channel Select Register (R/W)”
Input signal channel selection and clock mode selection register.
Sub Address: 0x00
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
CLKMD
Reserved
Reserved
Reserved
Reserved
Reserved
AINSEL1
AINSEL0
0
0
0
0
0
0
0
Default Value
0
Input Channel Select Register Definition
Register
Bit
R/W
Name
Definition
bit 0
~
bit 1
AINSEL0
~
AINSEL1
Analog Input
Select
R/W
Input video signal selection
[ AINSEL1 : AINSEL0 ]
[00]: AIN1 (CVBS)
[01]: AIN2 (CVBS)
[10]: AIN1(Y) / AIN2(C) (S-video)
[11]: No input setting (Analog circuit is set to power-down*)
bit 2
~
bit 6
Reserved
Reserved
R/W
Reserved
bit 7
CLKMD
Clock Mode
R/W
Clock mode selection
[0]: For crystal
[1]: External clock input (clock generator etc.)
*Clamp and ADC block is power-downed.
In used with AINSEL[1:0]=[11], Ouput data is depend on NSIGMD[1:0]–bit. However, in used with
NSIGMD[1:0]=[10], DATA[7:0]-pin, HD-pin, VD_F-pin and VAR-pin output Low.
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[9.1.2.] Sub Address 0x01 “Clamp Control Register (R/W)”
Analog clamps circuit setting register.
Sub Address: 0x01
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
Reserved
CLPWIDTH
Reserved Reserved CLPG1
CLPG0
0
0
0
0
0
Default Value
0
Clamp Control Register Definition
Register
Bit
Name
R/W
Definition
0
0
bit 0
~
bit 1
CLPG0
~
CLPG1
Clamp Gain
R/W
Current value of clamp in analog circuit setting
[00]: Min.
[01]: Middle 1 {=(Min. x 3)}
[10]: Middle 2 {=(Min. x 5)}
[11]: Max. {=(Min. x 7)}
bit 2
~
bit 3
Reserved
Reserved
R/W
Reserved
bit 4
CLPWIDTH
Clamp Pulse Width
R/W
Clamp pulse width setting.
[0]: 275nsec
[1]: 555nsec
bit 5
~
bit 7
Reserved
Reserved
R/W
Reserved
MS1179-E-00
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[9.1.3.] Sub Address 0x02 “Input Video Standard Register (R/W)”
Input signal setting
Sub Address: 0x02
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
AUTODET
SETUP
BW
VLF
VCEN1
VCEN0
VSCF1
VSCF0
0
0
0
0
0
0
0
Default Value
0
Input Video Standard Register Definition
Register
Bit
R/W Definition
Name
Input video signal subcarrier frequency setting
[ VSCF1 : VSCF0 ] ( MHz )
bit 0 VSCF0
Video
[00]: 3.57954545 (NTSC-M,J)
R/W
~
~
Sub-Carrier
[01]: 3.57561149 (PAL-M)
bit 1 VSCF1
Frequency
[10]: 3.58205625 (PAL-Nc)
[11]: 4.43361875(PAL-B,D,G,H,I,N,60, NTSC-4.43, SECAM*)
Input signal color encode format setting
[VCEN1 : VCEN0]
bit 2 VCEN0
[00]: NTSC
Video Color
R/W
~
~
Encode
[01]: PAL
bit 3 VCEN1
[10]: SECAM
[11]: Reserved
Input signal line frequency setting
Video Line
R/W [0]: 525-Line (NTSC-M,J, NTSC-4.43, PAL-M,60)
bit 4 VLF
Frequency
[1]: 625-Line (PAL-B,D,G,H,I,N, PAL-Nc, SECAM)
Monochrome mode (ON/OFF) setting
Black &
R/W [0]: Monochrome mode OFF
bit 5 BW
White
[1]: Monochrome mode ON
Setup process setting
bit 6 SETUP
Setup
R/W [0]: Process as input signal with no setup
[1]: Process as input signal with setup
Video
Input signal auto detection setting
bit 7 AUTODET Standard
R/W [0]: OFF (auto detection disabled; set manually)
Auto Detect
[1]: ON (auto detection enabled)
*For SECAM input signal, change VSCF[1:0] setting to [11].
MS1179-E-00
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[9.1.4.] Sub Address 0x03 “NDMODE Register (R/W)”
Limiting auto input video signal detection candidates register setting.
Sub Address: 0x03
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
ND625L
ND525L
NDPAL60
NDNTSC443
Reserved
NDSECAM
NDPALNC
NDPALM
0
0
0
0
0
0
Default Value
0
0
NDMODE Register Definition
Register
Bit
Name
R/W
bit 0
NDPALM
No Detect PAL-M
R/W
bit 1
NDPALNC
No Detect PAL-Nc
R/W
bit 2
NDSECAM
No Detect SECAM
R/W
bit 3
Reserved
Reserved
R/W
bit 4
NDNTSC443
No Detect NTSC-4.43
R/W
bit 5
NDPAL60
No Detect PAL-60
R/W
bit 6
ND525L
No Detect 525Line
R/W
bit 7
ND625L
No Detect 625Line
R/W
Definition
[0]: PAL-M candidate
[1]: PAL-M non-candidate
[0]: PAL-Nc candidate
[1]: PAL-Nc non-candidate
[0]: SECAM candidate
[1]: SECAM non-candidate
Reserved
[0]: NTSC-4.43 candidate
[1]: NTSC-4.43 non-candidate
[0]: PAL-60 candidate
[1]: PAL-60 non-candidate
[0]: 525 line candidate
[1]: 525 line non-candidate
[0]: 625 line candidate
[1]: 625 line non-candidate
In making the above register settings, the following restrictions apply,
1. Setting both NDNTSC443(bit 4) and NDPAL60(bit 5) to [1] (High) is prohibited.
2. Setting both ND525L(bit 6) and ND625L(bit 7) to [1] (High) is prohibited.
3. To limit candidate formats, it is necessary to have the auto detection mode OFF while first
setting the register to non-limited signal status and next the NDMODE settings, and then setting
the auto detection mode to ON.
MS1179-E-00
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[9.1.5.] Sub Address 0x04 “Output Format Register (R/W)”
Output data format setting register.
Sub Address: 0x04
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
VBIDEC1
VBIDEC0
SLLVL
TRSVSEL
LIMIT601
VBIL2
VBIL1
VBIL0
0
0
0
0
0
0
0
Default Value
0
Output Format Register Definition
Register
Bit
R/W
Name
bit 0
~
bit 2
bit 3
bit 4
VBIL0
~
VBIL2
Vertical
Blanking
Length
LIMIT601
601 Output
Limit
TRSVSEL
Time
Reference
Signal
V Select
MS1179-E-00
R/W
R/W
R/W
Definition
Vertical blanking interval length setting, entered as difference
from the default settings
The default settings are:
525LINE: Line1 ~ Line19 / Line263.5 ~ Line282.5
625LINE: Line623.5 ~ Line23.5 / Line311 ~ Line335
Examples of lengthening and shortening:
If lengthened 1 line, the interval becomes
525LINE: Line1 ~ Line20 / Line263.5 ~ Line283.5
625LINE: Line623.5 ~ Line24.5 / Line311 ~ Line336
If shortened 1 line, the interval becomes
525LINE: Line1 ~ Line18 / Line263.5 ~ Line281.5
625LINE: Line623.5 ~ Line22.5 / Line311 ~ Line334
[ VBIL2 : VBIL0 ]
[001]: VBI lengthened 1 line
[010]: VBI lengthened 2 lines
[011]: VBI lengthened 3 lines
[000]: Default
[101]: VBI shortened 3 lines
[110]: VBI shortened 2 lines
[111]: VBI shortened 1 line
[100]: Reserved
Output data code limit (Min-Max) setting
[0]: 1-254 (Y/Cb/Cr)
[1]: 16-235 (Y) / 16-240 (Cb/Cr)
Setting of lines for “Time reference signal” V-bit value change in
ITU-R BT.656 format
525-LINE input
If setting [0]:
V=1 (Line1 ~ Line9 / Line264 ~ Line272)
V=0 (Line10 ~ Line263 / Line273 ~ Line525)
If setting [1]:
V=1 (Line1 ~ Line19 / Line264 ~ Line282)
V=0 (Line20 ~ Line263 / Line283 ~ Line525)
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bit 5
SLLVL
Slice Level
R/W
bit 6
~
bit 7
VBIDEC0
~
VBIDEC1
VBI Decode
R/W
MS1179-E-00
625-LINE input
Always (regardless of setting on this register):
V=1 (Line1 ~ Line22 / Line311 ~ Line335 / Line624 ~ Line625)
V=0 (Line23 ~ Line310 / Line336 ~ Line623)
Slice level setting
[0]: Slice level approx. 25 IRE
[1]: Slice level approx. 50 IRE
Setting for type of data output during interval set in Vertical
Blanking Interval register
[VBIDEC1 : VBIDEC0]
[00]: Black level data output
[01]: Monochrome data output
[10]: Slice result data output
[11]: Reserved
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[9.1.6.] Sub Address 0x05 “Output Pin Control Register (R/W)”
Output pins status setting register.
Sub Address: 0x05
Default Value: 0x0F
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
VARSEL1
VARSEL0
VD_FSEL
OEN
HL
VARL
VD_FL
DL
0
0
0
1
1
1
1
Default Value
0
Output Pin Control Register Definition
Register
Bit
Name
R/W
bit 0
DL
D Output Low
R/W
bit 1
VD_FL
VD/FIELD Low
R/W
bit 2
VARL
VAR Low
R/W
bit 3
HL
HD Low
R/W
bit 4
OEN
Output
Enable
R/W
bit 5
VD_FSEL
VD/FIELD
Select
R/W
bit 6
~
bit 7
VARSEL0
~
VARSEL1
DVALID/FIELD
NSIG/LINE
Select
R/W
Definition
[0]: Normal output
[1]: [D17: D0] pin output fixed at Low
[0]: Normal output
[1]: VD_F pin output fixed at Low
[0]: Normal output
[1]: VAR pin output fixed at Low
[0]: Normal output
[1]: HD pin output fixed at Low
[0]: Normal output for each digital output pins*
[1]: Hi-Z output for each digital output pins.
VD_F pin output signal selection.
[0]: VD signal output
[1]: FIELD signal output
VAR pin output signal selection
[ VARSEL1 : VARSEL0 ]
[00]: DVALID signal output
[01]: FIELD signal output
[10]: NSIG signal output
[11]: LINE signal output
*Collective term for DTCLK, DATA[7:0], HD, VD_F and VAR pins.
However, the PDN pin states will have priority regardless of these register setting. When PDN pin is Low
output, the output from the DTCLK, DATA[7:0], VD_F, VAR and HD pins is Low output.
MS1179-E-00
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[9.1.7.] Sub Address 0x06 “Output Pin Polarity Set Register (R/W)”
Output pins polarity setting register.
Sub Address: 0x06
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
VARP
VD_FP
HDP
CLKINV
Reserved
Reserved
Reserved
Reserved
0
0
0
0
0
0
Default Value
0
0
Output Pin Polarity Set Register Definition
Register
Bit
R/W
Name
bit 0
Reserved
Reserved
R/W
~
bit 3
bit 4
CLKINV
CLK Invert Set
R/W
bit 5
HDP
HD Pin
Polarity Set
R/W
bit 6
VD_FP
VD_F Pin
Polarity Set
R/W
bit 7
VARP
VAR Pin
Polarity Set
R/W
MS1179-E-00
Definition
Reserved
DTCLK signal output polarity setting.
[0]: Normal output
(write in data at rising edge)
[1]: Data and clock reversed
(write in data at falling edge)
HD signal polarity setting
[0]: Active Low
[1]: Active High
VD_F pin output signal polarity setting
(If VD signal is output)
[0]: Active Low
[1]: Active High
(If Field signal is output)
[0]: Odd-Field Low, Even-Field High
[1]: Even-Field Low, Odd-Field High
VAR pin output signal polarity setting
(If DVALID signal is output)
[0]: Active Low
[1]: Active High
(If Field signal is output)
[0]: Odd-Field Low , Even-Field High
[1]: Even-Field Low , Odd-Field High
(If NSIG signal is output)
[0]: When the input signal is absent the output is High.
[1]: When the input signal is absent the output is Low.
(If LINE signal is output)
[0]: 525L-Low, 625L-High
[1]: 625L-Low, 525L-High
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[9.1.8.] Sub Address 0x07 “Control 0 Register (R/W)”
Sub Address: 0x07
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
VERTS
ACTSTA2
ACTSTA1
ACTSTA0
NSIGMD1
NSIGMD0
DPAL1
DPAL0
0
0
0
0
0
0
Default Value
0
0
Control 0 Register Definition
Register
Bit
Name
R/W
bit 0
~
bit 1
DPAL0
~
DPAL1
Deluxe PAL
R/W
bit 2
~
bit 3
NSIGMD0
~
NSIGMD1
No Signal
Output Mode
R/W
bit 4
~
bit 6
ACTSTA0
~
ACTSTA2
Active Video
Start
R/W
bit 7
VERTS
Vertical Sync
Way
R/W
MS1179-E-00
Definition
Setting for color averaging* (PAL phase correction block)
Also applicable to NTSC.
[ DPAL1 : DPAL0 ]
[00]: Adaptive phase correction ON
[01]: Phase correction ON
[10]: Phase correction OFF
[11]: Reserved
Setting for output on no-signal detection
[ NSIGMD1 : NSIGMD0 ]
[00]: Black-level output
[01]: Blue-level (Blueback) output
[10]: Input status (sandstorm) output
[11]: Reserved
Fine-tuning video data decode start position
delay or advance 1 sample unit is 13.5MHz (about 74ns)
[ ACTSTA2 : ACTSTA0 ]
[001]: 1Sample delay
[010]: 2Sample delay
[011]: 3Sample delay
[000]: Normal start position
[101]: 3Sample advance
[110]: 2Sample advance
[111]: 1Sample advance
[100]: Reserved
Vertical sync mechanism setting
[0]: VLOCK mechanism
[1]: Direct lock mechanism
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[9.1.9.] Sub Address 0x08 “Control 1 Register (R/W)”
Sub Address: 0x08
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
CLKMODE1
CLKMODE0
INTPOL1
INTPOL0
Reserved
EAVSAVN
YCSEP1
YCSEP0
0
0
0
0
0
0
0
Default Value
0
Control 1 Register Definition
Register
Bit
Name
R/W
bit 0
~
bit 1
YCSEP0
~
YCSEP1
YC Separation
Control
R/W
bit2
EAVSAVN
EAV SAV Disable
R/W
bit 3
Reserved
Reserved
R/W
bit 4
~
bit 5
INTPOL0
~
INTPOL1
Interpolator Mode
Select
R/W
bit 6
~
bit 7
CLKMODE0
~
CLKMODE1
Clock Mode
Select
R/W
Definition
Y/C separation setting
[ YCSEP1 : YCSEP0 ]
[00]: Adaptive Y/C separation
[01]: 1-dimensional Y/C separation
[10]: 2-dimensional Y/C separation
[11]: Reserved
EAV/SAV code output (ON/OFF) setting.
[0]: EAV/SAV code is superimposed to output data.
[1]: EAV/SAV code is not output.
Reserved
Pixel interpolator setting
[ INTPOL1 : INTPOL0 ]
[00]: Auto
[01]: ON
[10]: OFF
[11]: Reserved
Clock mode setting
[ CLKMODE1 : CLKMODE0 ]
[00]: Automatic transition mode
[01]: Line-locked clock mode
[10]: Frame-locked clock mode
[11]: Fixed-clock mode
[9.1.10.] Sub Address 0x09 “Reserved Register (R/W)”
Reserved register.
Sub Address: 0x09
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
0
0
0
0
0
0
0
Default Value
0
MS1179-E-00
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[9.1.11.] Sub Address 0x0A “PGA1 Control Register (R/W)”
PGA1 gain control setting register.
PGA1 is used for CVBS and Y signals gain processing.
Sub Address: 0x0A
Default Value: 0x3C
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
PGA1_7
PGA1_6
PGA1_5
PGA1_4
PGA1_3
PGA1_2
PGA1_1
PGA1_0
0
1
1
1
1
0
0
Default Value
0
PGA1 Control Register Definition
Register
Bit
Name
bit 0 PGA1_0
~
PGA1 Gain Set
~
bit 7 PGA1_7
R/W
Definition
R/W
PGA1 gain setting.
PGA gain is set by follows equation.
[9.1.12.] Sub Address 0x0B “PGA2 Control Register (R/W)”
PGA2 gain control setting register.
PGA2 is used for C signal gain processing.
Sub Address: 0x0B
Default Value: 0x3C
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
PGA2_7
PGA2_6
PGA2_5
PGA2_4
PGA2_3
PGA2_2
PGA2_1
PGA2_0
0
1
1
1
1
0
0
Default Value
0
PGA2 Control Register Definition
Register
Bit
Name
bit 0 PGA2_0
~
PGA2 Gain Set
~
bit 7 PGA2_7
R/W
Definition
R/W
PGA2 gain setting.
PGA gain is set by follows equation.
PGA gain equation:
Gain(dB) =
⎛ (2.5 × PGA) + 251.5 ⎞
20 LOG⎜
⎟
401.5
⎝
⎠
*PGA:PGA1orPGA2 register value(Dec.)
Default gain setting is 0x3C(HEX)=0.00dB.
MS1179-E-00
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[9.1.13.] Sub Address 0x0C “AGC and Color Control Register (R/W)”
AGC and Color setting register.
Sub Address: 0x0C
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
CKILLDIS
CONTSEL
ACC
SHARP
AGCC1
AGCC0
Reserved
AGC
0
0
0
0
0
0
0
Default Value
0
AGC and Color Control Register Definition
Register
Bit
Name
R/W
Definition
bit 0
AGC
AGC Setting
R/W
AGC (ON/OFF) setting.
[0]: AGC OFF
[1]: AGC ON
bit 1
Reserved
Reserved
R/W
Reserved
bit 2
~
bit 3
AGCC0
~
AGCC1
AGC Coring Control
R/W
bit 4
SHARP
SHARP
R/W
bit 5
ACC
ACC Setting
R/W
bit 6
CONTSEL
Contrast Select
R/W
bit 7
CKILLDISS
Color killer Disable
Set
R/W
MS1179-E-00
AGC non-sensing bandwidth (LSB) setting
[ AGCC1 : AGCC0 ]
[00]: ±2LSB
[01]: ±3LSB
[10]: ±4LSB
[11]: No non-sensing band
Sharpness adjustment setting
[0]: No filtering
[1]: Filter
ACC (ON/OFF) setting
[0]: ACC OFF
[1]: ACC ON
Contrast inclination selector
[0]: 50%
[1]: 0%
Color killer Enable/Disable setting
[0]: Enable
[1]: Disable
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[9.1.14.] Sub Address 0x0D “Contrast Control Register (R/W)”
Contrast adjustment setting register.
Sub Address: 0x0D
Default Value: 0x40
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
CONT6
CONT5
CONT4
CONT3
CONT2
CONT1
CONT0
1
0
0
0
0
0
0
Default Value
0
Contrast Control Register Definition
Register
Bit
R/W
Name
Definition
Contrast adjustment setting
[If CONTSEL-bit =[0]]
YOUT = (CONT / 64) x ( YIN - 128) +128
bit 0
~
bit 6
CONT0
~
CONT6
Contrast
Control
[If CONTSEL-bit =[1]]
YOUT = (CONT / 64) X YIN
R/W
YOUT: Contrast obtained by the calculation
YIN: Contrast before the calculation
CONT: Contrast gain factor (register setting value)
Register for contrast adjustment in steps of 1/64 in range {0~
(127 / 64)}.
Default value is 0x40.
bit 7
Reserved
MS1179-E-00
Reserved
R/W
Reserved
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[9.1.15.] Sub Address 0x0E “Brightness Control Register (R/W)”
Brightness adjustment setting register.
Sub Address: 0x0E
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
BR6
BR5
BR4
BR3
BR2
BR1
BR0
0
0
0
0
0
0
0
Default Value
0
Brightness Control Register Definition
Register
Bit
R/W
Name
Definition
Brightness adjustment setting
YOUT = YIN + ( BR x 2 )
bit 0
~
bit 6
BR0
~
BR6
Brightness
Control
R/W
YOUT: Brightness obtained by the calculation
YIN: Brightness before the calculation
BR: Brightness gain factor (register setting value)
Register for brightness adjustment in steps of 2 in range of
{-128 ~ 126}.
Brightness setting is in 2’s complement.
bit 7
Reserved
MS1179-E-00
Reserved
R/W
Reserved
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[9.1.16.] Sub Address 0x0F “Saturation Control Register (R/W)”
Color saturation adjustment setting register.
Sub Address: 0x0F
Default Value: 0x40
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
SAT6
SAT 5
SAT 4
SAT 3
SAT 2
SAT 1
SAT 0
1
0
0
0
0
0
0
Default Value
0
Saturation Control Register Definition
Register
Bit
R/W
Name
Definition
Color saturation adjustment setting.
COUT = (SAT / 64) X CIN
bit 0
~
bit 6
SAT0
~
SAT6
Saturation
Control
R/W
COUT: Saturation obtained by the calculation
CIN: Saturation before the calculation
SAT: Saturation gain factor (register setting value)
Register for saturation adjustment in steps of 1/64 in range {0~
(127 / 64)}.
Default value is 0x40.
bit 7
Reserved
Reserved
R/W
Reserved
[9.1.17.] Sub Address 0x10 “HUE Control Register (R/W)”
HUE adjustment setting register.
Sub Address: 0x10
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
HUE6
HUE 5
HUE 4
HUE 3
HUE 2
HUE 1
HUE 0
0
0
0
0
0
0
0
Default Value
0
HUE Control Register Definition
Register
Bit
Name
R/W
HUE adjustment setting
bit 0
~
bit 6
HUE0
~
HUE 6
HUE
Control
R/W
bit 7
Reserved
Reserved
R/W
MS1179-E-00
Definition
Register for hue adjustment in steps of 1/256 in range ±45° in
2’s complement
Reserved
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[9.1.18.] Sub Address 0x11 “High Slice Data Set Register (R/W)”
Register for setting sliced data from VBI slicer to High value. Default code is 235.
Sub Address: 0x11
Default Value: 0xEB
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
H7
H6
H5
H4
H3
H2
H1
H0
1
1
0
1
0
1
1
Default Value
1
High Slice Data Set Register Definition
Register
Bit
R/W
Name
bit 0 H0
High Data
R/W
~
~
Set
bit 7 H7
Definition
Register for setting sliced data from VBI slicer to High value
(Default code is 235).
Important: Corresponds to 601 special code if set to 0x00 or 0xFF
[9.1.19.] Sub Address 0x12 “Low Slice Data Set Register (R/W)”
Register for setting sliced data from VBI slicer to Low value. Default code is 16.
Sub Address: 0x12
Default Value: 0x10
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
L7
L6
L5
L4
L3
L2
L1
L0
0
0
1
0
0
0
0
Default Value
0
Low Slice Data Set Register Definition
Register
Bit
R/W
Name
bit 0 L0
Low Data
R/W
~
~
Set
bit 7 L7
MS1179-E-00
Definition
Register for setting sliced data from VBI slicer to Low value
(Default code is 16).
Important: Corresponds to 601 special code if set to 0x00 or 0xFF
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[9.1.20.] Sub Address 0x13 “Request VBI Information Register (R/W)”
Requested decode data during VBI interval setting register.
Sub Address: 0x13
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
Reserved
Reserved
WSSRQ
VBIDRQ
EXTRQ
CCRQ
0
0
0
0
0
0
0
Default Value
0
Request VBI Information Register Definition
Register
Bit
R/W
Name
bit 0
CCRQ
Closed Caption
Decode Request
bit 1
EXTRQ
Extended Data
Decode Request
R/W
bit 2
VBIDRQ
VBID
Decode Request
R/W
bit 3
WSSRQ
WSS
Decode Request
R/W
bit 4
~
bit 7
Reserved
Reserved
R/W
R/W
Definition
Setting (ON/OFF) for closed caption decode request
[0]: No request (OFF)
[1]: Request (ON)
Setting (ON/OFF) for Extended Data decode request
[0]: No request (OFF)
[1]: Request (ON)
Setting (ON/OFF) for VBID decode request
[0]: No request (OFF)
[1]: Request (ON)
Setting (ON/OFF) for WSS decode request
[0]: No request (OFF)
[1]: Request (ON)
Reserved
[9.1.21.] Sub Address 0x14 “Reserved Register (R/W)”
Reserved register.
Sub Address: 0x14
Default Value: 0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
0
0
0
0
0
0
0
Default Value
0
MS1179-E-00
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[9.1.22.] Sub Address 0x15 “Status 1 Register (R Only)”
Internal status register.
Sub Address: 0x15
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
OVCOL
PKWHITE
SCLKMD1
SCLKMD0
COLKILON
FRMSTD
VLOCK
NOSIG
Status 1 Register Definition
Register
Bit
Name
R/W
bit 0
NOSIG
No Signal
R
bit 1
VLOCK
Video Locked
R
bit 2
FRMSTD
Frame Standard
R
bit 3
COLKILON
Color Killer
R
bit 4
~
bit 5
SCLKMD0
~
SCLKMD1
Clock Mode
R
bit 6
PKWHITE
Peak White
Detection
R
bit 7
OVCOL
Over Color Level
R
MS1179-E-00
Definition
Input signal indicator
[0]: Input signal present
[1]: Input signal absent
Input signal VLOCK synchronization status indicator
[0]: Input signal synchronized
[1]: Input signal non-synchronized
Input signal interlace status indicator
[0]: Input signal 525/625 interlaced
[1]: Input signal not 525/625 interlaced
Color killer status indicator
[0]: Color killer not operation
[1]: Color killer operation
Clock mode indicator
[ SCLKMD1 : SCLKMD0 ]
[00]: Fixed-clock mode
[01]: Line-locked clock mode
[10]: Frame-locked clock mode
[11]: Reserved
Luminance decode result flow status indicator, after
passage through AGC block
[0]: Normal
[1]: Overflow
Color decode result flow status indicator,
after passage through ACC block
[0]: Normal
[1]: Overflow
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[9.1.23.] Sub Address 0x16 “Status 2 Register (R Only)”
Internal status register.
Sub Address: 0x16
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
AGCSTS
Reserved
WSSDET
VBIDDET
EXTDET
CCDET
Status 2 Register Definition
Register
Bit
Name
R/W
Definition
Indicator for presence of decoded data in Closed Caption 1, 2
Register
[0]: No closed caption data present
[1]: Closed caption Data present
Indicator for presence of decoded data in Extended Data 1, 2
Register
[0]: No extended data present
[1]: Extended data present
Indicator for presence of decoded data in VBID 1/2 Register
[0]: No VBID data present
[1]: VBID data present
Indicator for presence of decoded data in WSS 1/2 Register
[0]: No WSS data present
[1]: WSS data present
bit 0
CCDET
Closed Caption
Detect
R
bit 1
EXTDET
Extended Data
Detect
R
bit 2
VBIDDET
VBID Data
Detect
R
bit 3
WSSDET
WSS Data
Detect
R
bit 4
Reserved
Reserved
R
Reserved
bit 5
AGCSTS
AGC Status
R
[0]: Sync AGC active
[1]: Peak AGC active
bit 6
~
bit 7
Reserved
Reserved
R
Reserved
MS1179-E-00
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[9.1.24.] Sub Address 0x17 “Macrovision Status Register (R Only)”
Macrovision signal status register.
Sub Address: 0x17
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
Reserved
Reserved
Reserved
CSTYPE
CSDET
AGCDET
Macrovision Status Register Definition
Bit
Register Name
R/W
bit 0
AGCDET
AGC Process
Detect
bit 1
CSDET
Color Stripe
Detect
R
bit 2
CSTYPE
Color Stripe
Type
R
bit 3
~
bit 7
Reserved
Reserved
R
MS1179-E-00
R
Definition
Indicator for presence of Macrovision AGC in input
signal
[0]: No Macrovision AGC present
[1]: Macrovision AGC present
Indicator for presence of Macrovision Color Stripe in
input signal
[0]: No Color Stripe present
[1]: Color Stripe present
Indicator for type of Color Stripe included in input
signal
[0]: Color Stripe Type2
[1]: Color Stripe Type3
Reserved
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[9.1.25.] Sub Address 0x18 “Input Video Status Register (R Only)”
Input video status register for auto detection mode.
Sub Address: 0x18
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
FIXED
UNDEF
ST_B/W
ST_VLF
ST_VCEN1
ST_VCEN0
ST_VSCF1
ST_VSCF0
Input Video Status Register Definition
Register
BIT
R/W Definition
Name
Input video signal subcarrier frequency indicator
[ ST_VSCF1 : ST_VSCF0 ] ( MHz )
Status of
bit 0 ST_VSCF0
[00]: 3.57954545 (NTSC-M,J)
Video
R
~
~
Sub-Carrier
[01]: 3.57561149 (PAL-M)
bit 1 ST_VSCF1
[10]: 3.58205625 (PAL-Nc)
Frequency
[11]: 4.43361875 (PAL-B,D,G,H,I,N,60,NTSC-4.43,SECAM*)
Input signal color encode format indicator
[ ST_VCEN1 : ST_VCEN0 ]
bit 2 ST_VCEN0 Status of
[00]: NTSC
~
~
Video
R
[01]: PAL
bit 3 ST_VCEN1 Color Encode
[10]: SECAM
[11]: Reserved
Status of
Input signal line frequency setting
bit 4 ST_VLF
Video Line
R
[0]: 525-Line (NTSC-M,J, NTSC-4.43, PAL-M,60)
Frequency
[1]: 625-Line (PAL-B,D,G,H,I,N, PAL-Nc, SECAM)
Monochrome mode (ON/OFF) setting
Status of
R
[0]: Monochrome mode OFF
bit 5 ST_BW
B/W Signal
[1]: Monochrome mode ON
Setup process setting
bit 6 UNDEF
Un_define
R
[0]: Process as input signal with no setup
[1]: Process as input signal with setup
Input signal auto detection setting
Input Video
R
[0]: OFF (auto detection disabled; set manually)
bit 7 FIXED
Standard fixed
[1]: ON (auto detection enabled)
*For SECAM input signal, change VSCF[1:0] setting to [11].
MS1179-E-00
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[9.1.26.] Sub Address 0x19 “Closed Caption 1 Register (R Only)”
Closed Caption data storage register
Sub Address: 0x19
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
CC7
CC6
CC5
CC4
CC3
CC2
CC1
CC0
[9.1.27.] Sub Address 0x1A “Closed Caption 2 Register (R Only)”
Closed Caption data storage register
Sub Address: 0x1A
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
Bit 1
bit 0
CC15
CC14
CC13
CC12
CC11
CC10
CC9
CC8
[9.1.28.] Sub Address 0x1B “WSS 1 Register (R Only)”
WSS data storage register
Sub Address: 0x1B
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
WSS2-7
WSS2-6
WSS2-5
WSS2-4
WSS1-3
WSS1-2
WSS1-1
WSS1-0
[9.1.29.] Sub Address 0x1C “WSS 2 Register (R Only)”
WSS data storage register
Sub Address: 0x1C
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
WSS4-13
WSS4-12
WSS4-11
WSS3-10
WSS3-9
WSS3-8
[9.1.30.] Sub Address 0x1D “Extended Data 1 Register (R Only)”
Closed Caption Extended data storage register
Sub Address: 0x1D
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
EXT7
EXT6
EXT5
EXT4
EXT3
EXT2
EXT1
EXT0
[9.1.31.] Sub Address 0x1E “Extended Data 2 Register (R Only)”
Closed Caption Extended data storage register
Sub Address: 0x1E
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
EXT15
EXT14
EXT13
EXT12
EXT11
EXT10
EXT9
EXT8
[9.1.32.] Sub Address 0x1F “VBID 1 Register (R Only)”
VBID data storage register
Sub Address: 0x1F
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
VBID1
VBID2
VBID3
VBID4
VBID5
VBID6
[9.1.33.] Sub Address 0x20 “VBID 2 Register (R Only)”
VBID data storage register
Sub Address: 0x20
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
VBID7
VBID8
VBID9
VBID10
VBID11
VBID12
VBID13
VBID14
MS1179-E-00
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[9.1.34.] Sub Address 0x21 “Device and Revision ID Register (R Only)”
Device ID and Revision information indicator.
Device ID: 0x3B
Revision ID: Initially 0x00; revision number changes only when control software should be modified.
bit 7
bit 6
REV1
REV0
Default Value
0
0
bit 5
DID5
bit 4
DID4
bit 3
DID3
bit 2
DID2
Sub Address: 0x21
bit 1
bit 0
DID1
DID0
1
1
1
0
1
1
Device and Revision ID Register Definition
Bit
Register Name
bit 0
~
bit 5
bit 6
~
bit 7
DID0
~
DID5
REV0
~
REV1
MS1179-E-00
R/W
Definition
Device ID
R
Device ID indicator (0x3B)
Revision ID
R
Revision ID indicator (initially 0x00)
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[10.] System connection example
PVDD
pull
up
Micro Processor
2
(I C Controller)
SELA
SDA SCL
PDN
DATA[7:0]
Video IN
47Ω
0.033uF
VAR
AIN1
VD_F
HD
30Ω
DTCLK
Video IN
47Ω
TEST
0.033uF
AIN2
30Ω
XTI
IREF
VRP
VCOM
VRN
AK8859VN
22pF
24.576
MHz
XTO
22pF
0.1uF 0.1uF 0.1uF
6.8kΩ
PVDD
PVDD
0.1uF
10uF
DVSS
DVDD
AVDD
DVDD
AVDD
0.1uF
0.1uF
10uF
DVSS
AVSS
Analog GND
MS1179-E-00
10uF
Digital GND
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[11.] Package
5.00±0.10
0.40±0.10
B
C0
. 42
3.10
4.75±0.10
5.00±0.10
4.75±0.10
A
0.23 +0.07
-0.05
M
0.85±0.05
0.10
3.10
0.50
AB
MS1179-E-00
0.08
C
0.01+0.04
-0.01
0.20
C
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[12.] Marking
AKM
8859
XXXX
1
AKM: AKM Logo
8859: Marketing Code
XXXX (4 digits): Date Code
MS1179-E-00
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[AK8859VN]
z
z
z
z
z
These products and their specifications are subject to change without notice.
Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd.
(AKM) sales office or authorized distributor concerning their current status.
AKM assumes no liability for infringement of any patent, intellectual property, or other
right in the application or use of any information contained herein.
Any export of these products, or devices or systems containing them, may require an
export license or other official approval under the law and regulations of the country of
export pertaining to customs and tariffs, currency exchange, or strategic materials.
AKM products are neither intended nor authorized for use as critical components in any
safety, life support, or other hazard related device or system, and AKM assumes no
responsibility relating to any such use, except with the express written consent of the
Representative Director of AKM. As used here:
(a) A hazard related device or system is one designed or intended for life support or
maintenance of safety or for applications in medicine, aerospace, nuclear energy, or
other fields, in which its failure to function or perform may reasonably be expected to
result in loss of life or in significant injury or damage to person or property.
(b) A critical component is one whose failure to function or perform may reasonably be
expected to result, whether directly or indirectly, in the loss of the safety or
effectiveness of the device or system containing it, and which must therefore meet very
high standards of performance and reliability.
It is the responsibility of the buyer or distributor of an AKM product who distributes,
disposes of, or otherwise places the product with a third party to notify that party in advance
of the above content and conditions, and the buyer or distributor agrees to assume any and
all responsibility and liability for and hold AKM harmless from any and all claims arising
from the use of said product in the absence of such notification.
MS1179-E-00
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