PCI930

3-TO-1 ZOOMED VIDEO SWITCH

SCPS018B – OCTOBER 1997 – REVISED DECEMBER 1997

7

POST OFFICE BOX 655303

Terminal Functions

Table 4. Power Supply Terminal Functions

TERMINAL

TYPE

FUNCTION

NAME

NO.

TYPE

FUNCTION

GND

5, 19, 51, 69, 81, 82, 83, 101, 115

I

Device ground terminals.

VCC

13, 27, 45, 59, 77, 91, 109, 123

I

3.3V power supply input for core.

VCCS

4, 34, 67, 99

I

Rail input for 5V tolerance on zoom video streams

Table 5. ZV Stream Interface

TERMINAL

TYPE

FUNCTION

NAME

NO.

TYPE

FUNCTION

HREF

18, 52, 84, 117

†

Horizontal sync to ZV port.

VSYNC

20, 53, 85, 118

†

Vertical sync to ZV port.

Y7:0

A_ = 127, 126, 125, 124, 122, 121, 120, 119

B_ = 29, 28, 26, 25, 24, 23, 22, 21

C_ = 62, 61, 60, 58, 57, 56, 55, 54

ZV_ = 94, 93, 92, 90, 89, 88, 87, 86

I

I

I

O

Video data to ZV port YUV:4:2:2 format.

Video data to ZV port YUV:4:2:2 format.

Video data to ZV port YUV:4:2:2 format.

Video data YUV:4:2:2 format.

UV7:0

A_ = 11, 10, 9, 8, 7, 6, 3, 2

B_ = 41, 40, 39, 38, 36, 35, 31, 30

C_ = 74, 73, 72, 71, 70, 68, 66, 63

ZV_ = 106, 105, 104, 103, 102, 100, 98, 95

I

I

I

O

Video data to ZV port YUV:4:2:2 format.

Video data to ZV port YUV:4:2:2 format.

Video data to ZV port YUV:4:2:2 format.

Video data YUV:4:2:2 format.

SCLK

12, 42, 75, 107

†

Audio SCLK PCM signal.

MCLK

14, 43, 76, 108

†

Audio MCLK PCM signal.

PCLK

17, 47, 80, 112

†

Pixel clock to ZV port.

LRCLK

15, 44, 78, 110

†

Audio LRCLK PCM signal.

SDATA

16, 46, 79, 111

†

Audio PCM data signal.

† Inputs on A, B, and C source ports; Outputs to ZV_xx interface

control settings for ZV switch routing

Table 6 lists termination conditions that can exercise control over the ZV switch and shows the results.

Table 6. Termination Conditions

FUNCTION

CONDITION

RESULT

ZV xx inactive state

Pullup resistor on A/B_STAT

ZV_xx three-stated

ZV_xx inactive state

No pullup resistor on A/B_STAT

ZV_xx driven L

C precedence control

Pullup resistor on A/B_SEL

C takes precedence over A/B.

C precedence control

No pullup resistor on A/B_SEL

A/B takes precedence over C.