HMP8117 datasheet(28/45 Pages) RENESAS

28 / 45 page

HMP8117

FN4643 Rev 4.00

Page 28 of 45

July 29, 2009

TABLE 22. VIDEO STATUS REGISTER

SUB ADDRESS = 0EH

BIT

NO.

FUNCTION

DESCRIPTION

RESET

STATE

Vertical Lock

Status

This bit is read-only. Data written to this bit is ignored.

If set to “1”, the decoder is vertically locked to the input signal.

Horizontal Lock

Status

This bit is read-only. Data written to this bit is ignored.

If set to “1”, the decoder is horizontally locked to the input signal.

Color Lock

Status

This bit is read-only. Data written to this bit is ignored.

If set to “1”, the decoder is chroma locked to the input signal.

Input Video

Detect Status

This bit is read-only. Data written to this bit is ignored.

If set to “1”, video is detected on the input signal.

3-1

MV Detection Status These bits are read-only. Data written to this bit is ignored.

000B = No MV present

001B = PSP present, No Stripes

010B = PSP present, 2-Line Stripes

011B = PSP present, 4-line Stripes

100B = reserved

101B = reserved

110B = No PSP present, 2-line Stripes (invalid MV scheme, may indicate false detection)

111B = No PSP present, 4-line Stripes (invalid MV scheme, may indicate false detection)

000B

Auto Detect

Video Standard

Status

This bit is read-only. Data written to this bit is ignored.

If set to “1”, the decoder determined the video standard on the input signal.

This bit is enabled by the Input Format Register 01H bit 4.

TABLE 23. INTERRUPT MASK REGISTER

SUB ADDRESS = 0FH

BIT

NO.

FUNCTION

DESCRIPTION

RESET

STATE

Genlock Loss

Interrupt Mask

If set to “1”, an interrupt is enabled for the loss of genlock.

Input Signal Loss

Interrupt Mask

If set to “1”, an interrupt is enabled for the loss of input video signal.

Closed Caption

Interrupt Mask

If set to “1”, an interrupt is enabled for new data in the closed caption data registers.

4WSS

Interrupt Mask

If set to “1”, an interrupt is enabled for new data in the WSS data registers.

Teletext

Interrupt Mask

If set to “1”, an interrupt is enabled for the detection of teletext data in the current field.

MV Interrupt Mask

If set to “1”, an interrupt is enabled for a change in the MV Detection Status Register 0EH.0B

Auto Detect

Video Standard

Interrupt Mask

If set to “1”, an interrupt is enabled for the successful auto detection of a video standard.

Vertical Sync

Interrupt Mask

If set to “1”, an interrupt is enabled for the start of a new field.

HMP8117 Datasheet(PDF) 28 Page - Renesas Technology Corp

HMP8117 Datasheet(HTML) 28 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Datasheet Download

Link URL