AD9882 Просмотр технического описания (PDF) - Analog Devices

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AD9882

Dual Interface for Flat Panel Displays

Analog Devices 

AD9882

Table IV. Power-Down Modes, 4:2:2 and 4:4:4 Format Descriptions

Mode

Analog Digital Active Active

Power- Interface Interface Interface Interface 4:2:2

Down1 Detect2 Detect3 Override Select Formatting Data Sheet Signals Powered On

Soft Power- 1

0

0

0

X

X

Down (Seek

Mode)

Serial bus, digital interface clock detect,

analog interface clock detect, SOG

Digital

1

0

1

0

X

X

Interface On

Serial bus; digital interface and analog

interface activity detect; SOG, band gap

reference; red, green, and blue outputs

Analog

1

1

0

0

X

0

Interface On

4:4:4 Format

Serial bus; analog interface and digital

interface clock detect; SOG, band gap

reference; red, green, and blue outputs

Analog

1

1

0

0

X

1

Interface On

4:2:2 Format

Serial bus; analog interface and digital

interface clock detect; SOG, band gap

reference; red and green outputs only

Serial Bus 1

1

1

1

0

0

Arbitrated

Interface

Same as Analog Interface

on 4:4:4 Mode

Serial Bus 1

1

1

1

0

1

Arbitrated

Interface

Same as Analog Interface

on 4:2:2 Mode

Serial Bus 1

1

1

1

1

X

Arbitrated

Interface

Same as Digital Interface Mode

Override to 1

1

X

1

0

0

Analog

Interface

Same as Analog Interface

4:4:4 Mode

Override to 1

1

X

1

0

1

Analog

Interface

Same as Analog Interface

4:2:2 Mode

Override to 1

X

1

1

1

X

Digital

Interface

Same as Digital Interface Mode

Absolute

0

X

X

X

X

X

Power-

Down

Serial Bus

NOTES

1Power-down is controlled via Bit 1 in Serial Bus Register 14H.

2Analog Interface Detect is determined by OR-ing Bits 7, 6, and 5 in Serial Bus Register 15H.

3Digital Interface Detect is determined by Bit 4 in Serial Bus Register 15H.

–12–

REV. A

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