YGV639 Datasheet, PDF (17/34 Pages) YAMAHA CORPORATION – Video Controller 1 with Enhanced Functions

YGV639
Horizontal Start Signal Output Pin
STARTH (Output)
When using the built-in timing controller, it outputs a horizontal start signal.
This pin’s activation state is selectable by the register setting.
● When the register (R#111: REVSH) is “0”: High-active
● When the register (R#111: REVSH) is “1”: Low-active
This pin is dual-purpose pin. When not using the built-in timing controller, it functions as PLLCTL2.
Vertical Start Signal Output Pin
STARTV (Output)
When using the built-in timing controller, it outputs a vertical start signal.
This signal’s activation state is selectable by the register setting.
● When the register (R#112: REVSV) is “0”: High-active
● When the register (R#112: REVSV) is “1”: Low-active
This pin is dual-purpose pin. When not using the built-in timing controller, it functions as BLANK_N.
Horizontal Load Signal Output Pin
LOADH (Output)
When using the built-in timing controller, it outputs a horizontal load signal.
This signal’s activation state is selectable by the register setting.
● When the register (R#111: REVLH) is “0”: High-active
● When the register (R#111: REVLH) is “1”: Low-active
This pin is dual-purpose pin. When not using the built-in timing controller, it functions as PLLCTL3.
Polarity Invert Signal Output Pin
STARTH (Output)
When using the built-in timing controller, it outputs a polarity invert signal. This pin is dual-purpose pin.
When not using the built-in timing controller, it functions as VSYNC_N.
Output Enable Signal
OUTENV (Output)
When using the built-in timing controller, it outputs an output-enable signal. This pin is dual-purpose pin.
When not using the built-in timing controller, it functions as PLLCTL1.
Timing Controller Select Pin
TCONE (Input)
This is a select pin for the built-in timing controller. If this TCONE pin is connected to “VDD33”, the
timing signal to be output from a built-in timing controller will be output to a dual-purpose pin.
An input signal level should be settled during the period of RESET_N pin=“L” at power-on and must not
be changed while the power is ON. Although a pull-down resistor is included, it is recommended to connect
this pin to GND when using it with TCONE=L. When using with TCONE=H, this pin should be connected
to VDD33 without the resistor.
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