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YGV639 Datasheet(PDF) 8 Page - YAMAHA CORPORATION |
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YGV639 Datasheet(HTML) 8 Page - YAMAHA CORPORATION |
8 / 34 page YGV639 8 ● The meaning of [Attribute] column is as follows: ■ Analog: analog pin ■ tolerant: tolerant attribute represents that current does not flow to a power supply pin from the voltage-applied pin, when voltage higher than supply voltage is applied to the pin. However, since this pin cannot withstand 5V, it is necessary to make the voltage difference between the pin and the power supply voltage less than 3.6V. Therefore, voltage exceeding 3.6V (maximum of recommended operation voltage) cannot be applied to it without the supply of power (supply voltage = 0V). ■ 5V tolerant: 5V tolerant attribute means the pin has a withstand voltage of 5V. That is, 5V can be applied to this pin when supply voltage is 0V. Dual-purpose Pin Sharing CPU Interface Pins VC1E supports the two types of CPU interfaces: serial and parallel interfaces. Pins are shared by the interfaces as follows: Pin Name Parallel Interface (SER_N=H) Serial Interface Chip Select (SER_N=L) D7-0 D7-0 Unused PS2-0 PS2-0 Unused CS_N CS_N SCS_N RD_N RD_N SDIN WR_N WR_N SCLK WAIT_N WAIT_N SDOUT READY_N READY_N Unused INT_N INT_N INT_N Sharing Timing-Controller Pins VC1E has a built-in LCD timing controller and this function can be enabled by TCONE pin setting. The following pins are shared depending on whether the timing controller is enabled or disabled. Pin Name Timing controller disabled (TCONE=L) Timing controller enabled (TCONE=H) DR5-0 DR5-0 DR5-0 DG5-0 DG5-0 DG5-0 DB5-0 DB5-0 DB5-0 DOTCLK DOTCLK DOTCLK HCSYNC_N HCSYNC_N CLKV VSYNC_N VSYNC_N POL BLANK_N BLANK_N STARTV PLLCTL3 PLLCTL3 LOADH PLLCTL2 PLLCTL2 STARTH PLLCTL1 PLLCTL1 OUTENV |
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