THCV235-Q_THCV236-Q_Rev.3.40_E
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©
2016 THine Electronics, Inc.
THine Electronics, Inc.
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Security E
Main-Link Mode Setting
Two modes of Main-Link operation are available. Mode select is done by MAINMODE pin (when PDN1=0) or
MAINMODE register (when PDN1=1).
V-by-One
®
HS Mode (MAINMODE=0)
V-by-One
®
HS Mode is compliant with V-by-One
®
HS standard Version1.4. (See Figure 3 and Table 14)
Sync Free Mode (MAINMODE=1)
Incoming data can be transmitted by Sync Free Mode without DE requirement. (See Table 14)
Color Space Conversion
The THCV235-Q converts RGB444 to YCbCr422 and the THCV236-Q converts back to RGB. This function
can only be used in V-by-One
®
HS mode and enabled by COL1=1 setting. COL1 is external pin (when PDN1=0)
or internal register (when PDN1=1). Color space conversion coefficients are compliant with ITU-R BT.709-5.
Pre-emphasis and Drive Select Function (THCV235-Q only)
Pre-emphasis can equalize severe signal degradation caused by long-distance or high-speed transmission. PRE
pin or PRE register selects the strength of pre-emphasis. CMLDRV pin or CMLDRV register controls CML
Main-Link output swing level. See Table 4 and Table 5.
Table 4.
Pre-emphasis and Drive Select function table (PDN1=0)
CMLDRV
(pin)
PRE
(pin)
Condition
Swing Level
Pre-emphasis Level
0
0
600mV diff p-p
0dB
1 3.5dB
1
*
800mV diff p-p
0dB
Table 5.
Pre-emphasis and Drive Select function table (PDN1=1)
CMLDRV[1:0]
(register)
PRE
(register)
Condition
Swing Level
Pre-emphasis Level
00
0
400mV diff p-p
0dB
1 6dB
01
0
600mV diff p-p
0dB
1 3.5dB
10
*
800mV diff p-p
0dB
11
*
Forbidden