STV9211 データシートの表示（PDF） - STMicroelectronics

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STV9211

150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS IN DC-COUPLING MODE

STMicroelectronics 

Functional description

Figure 4: BPCP and OCL generation

HS

External

1

HS Edge Selection

R8-bit1

BPCP Source Selection

R8-bit4

Source Selection

R8-bit0

Width Selection

R8-bit2 & bit3

Automatic

Polarity

Edge

Selection

Pulse

Generation

BPCP

Internal

BLK

External

20

Polarity

Selection

BLK Polarity

Selection: R9-bit0

Pulse

Generation

OCL

Internal

OCL source

Selection: R8-bit7

STV9211

2.2 Fast blanking input

The fast blanking pin (FBLK) is TTL compatible. When it is at high level, the input signal is blanked

and replaced by OSD insets defined by binary levels on three OSD inputs and a dedicated OSD

contrast adjustment stage.

2.3 Blanking input

The blanking input BLK is TTL compatible. The active level is either high (positive pulse polarity) or

low (negative pulse polarity). When the level is active, the RGB outputs are at infra-black level,

regardless of the input level. The pulse on the BLK input defines the timing of the internal OCL

signal and it can also define the timing of the internal BPCP pulse. See Figure 4, Figure 11 and

Chapter 9: I2C register description .

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