YGV628B Datasheet, PDF (13/26 Pages) YAMAHA CORPORATION – AVDP7 Advanced Video Display Processor 7

YGV628B






● UDQM (Output Pin No.83)
● LDQM (Output Pin No.80)
- It is a data mask signal output pin for video memories.
- The data mask signal to a video memory is output.
- UDQM pin is a data mask signal SDQ15-8 pin, and LDQM pin is a data make signal to SDQ7-0.
- These signals are high active.
● SDCKOUT (Output Pin No.85)
- It is a clock output pin for video memories.
- The clock to a video memory is output.
- The clock frequency output from this pin is 75MHz to 81MHz.
5) Monitor Interface
● R (Analog Output Pin No.134)
● G (Analog Output Pin No.135)
● B (Analog Output Pin No.136)
- It is an analog RGB output pin.
- Linear R, G, and B signal are output.
- When the analog RGB output is not used, please connect nothing.
● IREF (Analog Pin No.137)
- It is a standard current input pin for RGB DAC.
- When an analog RGB output is not used, please connect nothing.
● DRO5-0 (Output Pin No.109-114)
● DGO5-0 (Output Pin No.115, 116, 118, 119, 121, 122)
● DBO5-0 (Output Pin No.123-126, 128, 129)
- It is a digital RGB output pin.
- When a digital RGB output is not used, please connect nothing.
● DRI5-0 (Input Pin No.147, 149-153)
● DGI5-0 (Input Pin No.154-157, 159, 161)
● DBI5-0 (Input Pin No.162-167)
- It is a digital RGB input pin.
- Since these pins do not internally have a pull-up resistor, please make the pull-up outside of the device if
necessary.
● VSYNC_N (Output Pin No.143)
- It is a vertical synchronized signal output pin.
- Vertical synchronized signal is output.
- This signal is low active.
● CSYNC_N (Output Pin No.142)
- It is a horizontal / composite synchronized signal output pin.
- Horizontal synchronized signal or Composite synchronized signal are output.
- This signal is low active.
● HSIN_N (Input Pin No.168)
- It is a horizontal synchronized signal input pin.
- The external horizontal synchronized signal for resetting an internal horizontal counter is input.
- When not used, please make the pull-up outside of the device if necessary because this pin does not
internally have a pull-up resistor.
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