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BT817/8 Advanced Embedded Video Engine Datasheet

Version 1.1

Document No.: BRT_000302 Clearance No.: BRT#154

3.3 Pin Description

Pin Number

Pin Name

Type

Description

BT817

BT818

Bit 0 of Red RGB signals

Powered from pin VCCIO2

VCC1V2

1.2V digital core supply. Connect to VOUT1V2 pin

on PCB. A 0.1uF + 1uF decoupling capacitors are

recommended

SCK

SPI clock input

Powered from pin VCCIO1

MISO

I/O

SPI Single mode: SPI MISO output

SPI Dual/Quad mode: SPI data line 1

Powered from pin VCCIO1

MOSI

I/O

SPI Single mode: SPI MOSI input

SPI Dual/Quad mode: SPI data line 0

Powered from pin VCCIO1

CS_N

SPI slave select input

Powered from pin VCCIO1

GPIO0/IO2

I/O

SPI Single/Dual mode: General purpose IO 0

SPI Quad mode: SPI data line 2

Powered from pin VCCIO1

GPIO1/IO3

I/O

SPI Single/Dual mode: General purpose IO 1

SPI Quad mode: SPI data line 3

Powered from pin VCCIO1

VCCIO1

I/O power supply for host interface pins. Support

1.8V, 2.5V or 3.3V.

GPIO2

I/O

General purpose IO 2

Powered from pin VCCIO1

INT_N

OD/

Interrupt to host, open drain output (default) or

push-pull output, active low

PD_N

Chip power down mode control input, active low.

Connect to MCU GPIO for power management or

hardware reset function, or pulled up to VCCIO1 if

not used.

Powered from pin VCCIO1

GPIO3

I/O

General purpose IO 3

Powered from pin VCCIO1

SPIM_SCLK

SPI flash clock output line. Leave floating if not

used.

Powered from pin VCCIO3

SPIM_SS_N

SPI flash chip select output line. Leave floating if

not used.

Powered from pin VCCIO3

SPIM_MOSI

I/O

SPI flash MOSI line. Leave floating if not used.

Powered from pin VCCIO3

VCCIO3

I/O power supply for SPIM pins. Support 1.8V,

2.5V or 3.3V.

VCCIO3 can be connected to different voltage with

VCCIO1 or VCCIO2.

SPIM_MISO

I/O

SPI flash MISO line. Connect to GND if not used.

Powered from pin VCCIO3

SPIM_IO2

I/O

SPI flash IO2 line. Leave floating if not used.

Powered from pin VCCIO3

SPIM_IO3

I/O

SPI flash IO3 line. Leave floating if not used.

Powered from pin VCCIO3

X1/CLK

Crystal oscillator input

3.3V peak input allowed.

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