8

VP7615

REGISTER DESCRIPTIONS

The VP7615 iCamHost™ processor station address is strap-configurable to any even location between 0x60 and 0x6E

inclusive. Since most iCam cameras currently built use the Station Address 0x68, it is recommended that the iCamHost™ be

strapped to a different address. The register addresses shown below are the sub-addresses written to the iCamHost™

immediately after the Station Address. The 7 LSBs of the sub-address must match the specified address. The MSB of the

sub-address controls the auto-increment feature of the iCamHost™. If the MSB of the sub-address is a ‘1’, (sub-addresses

0x80 through 0xFF), the sub-address register in the iCamHost™ is incremented to the next address immediately after the data

register is read or written. If the MSB of the sub-address is a ‘0’, (sub-addresses 0x00 through 0x7F), the sub-address register

in the iCamHost™ remains constant regardless of any reads or writes to the data register. All registers default to 0x00 following

chip reset unless otherwise noted.

Address 0x00 Configuration Control Register

Read/Write

Bits 7 - 4

Always read as ‘0’

Bit 3

Cfg3 - Camera Input Port Enable

‘1’ CamPort™ ‘B’ is source

‘0’ CamPort™ ‘A’ is source

Bit 2

Cfg2 - Colour Bar Enable

‘1’ Colour Bar Test Pattern Output

‘0’ Normal Video Output

Bit 1

Cfg1 - RGB to YUV Converter Bypass

‘1’ Green + BnR Pattern Output

‘0’ Normal YUV Output

Bit 0

Cfg0 - Separator Bypass

‘1’ Sum = CCD Data, Diff = 0

‘0’ Normal Separator Output

Address 0x01 RESERVED

Address 0x02 Peak Luma Filter Control Register

Read/Write

Bits 7 - 3

Always read as ‘0’

Bits 2 - 0

Peak Luma Filter Control

‘000’ - PLF K = 1, No Luma Filter

‘001’ - PLF K = 1/2, Fast Luma Filter

‘010’ - PLF K = 1/4, Med Fast Luma Filter

‘011’ - PLF K = 1/8, Med Slow Luma Filter

‘1XX’ - PLF K = 1/16, Slow Luma Filter

Address 0x03 RESERVED

Address 0x04 Horizontal Start Register

Read/Write

Bits 7 - 0

Horizontal Start Register

Four times the value of this register is the

Horizontal starting pixel for the Metrics window.

7

0

6

0

5

0

4

0

3

Cfg3

2

Cfg2

1

Cfg1

0

Cfg0

7

0

6

0

5

0

4

0

3

0

2

PLF2

1

PLF1

0

PLF0

7

HStrt7

6

HStrt6

5

HStrt5

4

HStrt4

3

HStrt3

2

HStrt2

1

HStrt1

0

HStrt0