Dolby Laboratories S01/13621 User Manual

Page 25

Advertising
background image

Dolby Installation Guidelines

Unit Connections and Dimensions

2-15

Table 2-10 Pin Connections for the Status Port

Pin

Direction

Connection

Comments

1

Output

Dolby E Detect

1: Dolby E

0: PCM or none

2

Output

Reference Video Valid

1: Valid;

0: Ref video error

3

Output

Dolby E Decoding Valid 1: Valid;

0: Decoding error

4

Output

System Operational

1: Functional

0: Failed

5

Output

Fault

1: Functional

0: Hardware Fault

6

Output Reserved

7

Input

PCM channel routing

Voiceover and Switched mode

8

Input

PCM channel routing

Voiceover and Switched mode

9

N/A Ground

Pins 1–5

These indicate details regarding the current condition of the unit. A “1”
corresponds to a “high” level on the corresponding pin.

Pins 7–8

These can be used to select Voiceover and Switched Out modes. The state
of the pins is normally high (internal pull up), and they detect a high-to-
low transition. A held contact closure between pins 7 and 9 (ground) or
pins 8 and 9 is required to activate a function. A low-to-high transition
(i.e., a switch release) restores the delay out setting. The table below
shows the function of the two GPI pins on the DP572.

Table 2-11 Status port Output Routing Mode Selection

Ctrl in Pin 8

Ctrl in Pin 7

PCM Chan Config

Output Routing Mode

High High

Delay

Out

High Low

Voiceover

Low High Switched

Out

Low Low

Reserved

Figure 2-5 details the channel routing of these modes for a 5.1 input.

Advertising