Parallel input connector port Signal allocation (Signal : ECP)

Pin No.

Return

 

 

 

 

Signal

From/To

Function

 

pin No.

 

 

 

 

 

 

 

 

 

 

 

1

19

 

 

 

 

 

 

 

 

 

PC/DP

Forward data transfer : Becomes “Low” when PeriphAck is

 

 

 

 

HostClk

 

 

 

 

 

 

 

 

 

 

 

 

“Low” and there is data to be read. Returns to “High” when

 

 

 

 

 

 

 

 

 

 

 

 

PeriphAck becomes “High”.

2

20

 

 

DATA1(LSB)

PC/DP

High: data 1

3

21

 

 

 

 

DATA2

PC/DP

Low: data 0

4

22

 

 

 

 

DATA3

PC/DP

 

5

23

 

 

 

 

DATA4

PC/DP

Information will be expressed for parallel data of every signal

6

24

 

 

 

 

DATA5

PC/DP

from bit No.1 to No.8.

7

25

 

 

 

 

DATA6

PC/DP

 

8

26

 

 

 

 

DATA7

PC/DP

 

9

27

 

DATA8(MSB)

PC/DP

 

10

28

 

 

 

PeriphClk

PC/DP

Reverse data transfer : Sends “Low” data when HostAck is

 

 

 

 

 

 

 

 

 

 

 

 

“Low”. Returns to “High” when HostAck becomes “High”.

 

 

 

 

 

 

 

 

 

 

 

 

 

11

29

 

 

 

PeriphAck

PC/DP

Forward data transfer:

 

 

 

 

 

 

 

 

 

 

 

 

High: DP is on BUSY status.

 

 

 

 

 

 

 

 

 

 

 

 

Low: DP can accept data.

12

 

 

 

 

 

 

 

PC/DP

High: Forward data transfer (Receive)

 

 

 

AckReverse

 

 

 

 

 

 

 

 

 

 

 

 

Low: Reverse data transfer (Send)

13

 

 

 

 

 

Xflag

PC/DP

High: During supporting ECP mode

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

HostAck

PC/DP

Reverse data transfer:

 

 

 

 

 

 

 

 

 

 

 

 

High: PC is on BUSY status.

 

 

 

 

 

 

 

 

 

 

 

 

Low: PC can send data.

16•17

 

 

 

 

 

GND

 

Earth

18

 

 

 

 

 

High

PC/DP

PeripheralLogicHigh

19 - 30

 

 

 

 

 

GND

PC/DP

Earth

31

16

 

 

 

 

 

 

 

PC/DP

Low : When PC requests DP to send data

Reverse Request

 

 

 

 

 

 

 

 

 

 

PC/DP

Low : When DP requests PC to send data

32

 

Periph Request

15•

 

 

 

 

 

NC

 

Unused

33 - 35

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36

 

 

 

1284 Active

PC/DP

Becomes “High” when DP requests each mode of IEEE1284.

22

Page 25
Image 25
Mitsubishi Electronics P91DW operation manual Parallel input connector port Signal allocation Signal ECP

P91DW specifications

The Mitsubishi Electronics P91DW projector emerges as a versatile and high-performance device optimized for various presentations and entertainment settings. This projector is particularly well-suited for corporate environments, educational institutions, and even home theaters, thanks to its impressive specifications and cutting-edge technologies.

One of the standout features of the P91DW is its exceptional Brightness and Contrast Ratio. With a brightness of approximately 3,800 ANSI lumens, this projector guarantees clear and vibrant images, even in well-lit rooms. The high contrast ratio enhances the depth and detail of the visuals, making it ideal for displaying intricate graphics and text during presentations.

The P91DW uses DLP (Digital Light Processing) technology, which is renowned for delivering sharp and stable images. DLP technology reduces the risk of image degradation over time, ensuring that your images remain consistent and reliable throughout the projector's lifespan. This is particularly beneficial for users who rely on their projectors for frequent usage.

In terms of connectivity, the P91DW has a wide array of options, including HDMI, VGA, and composite inputs. This versatility allows it to connect to various devices such as laptops, tablets, and smartphones, making it easy to share content across platforms. Furthermore, the projector supports multiple video formats, ensuring compatibility with various media types.

Another remarkable characteristic of the P91DW is its built-in speakers, which deliver decent audio quality for basic presentations. However, for larger venues or cinematic experiences, users might prefer to connect external audio systems for enhanced sound fidelity.

Portability is another advantage of the P91DW. Weighing in at approximately 3.2 kg, it is lightweight and easily transportable, allowing users to set it up in different locations without hassle. Its compact design also makes it easy to store when not in use.

In terms of maintenance, the P91DW features a long-lasting lamp, which can provide an impressive lifespan, reducing the need for frequent replacements. Additionally, it incorporates a filter that is easy to clean, prolonging the projector's overall performance and effectiveness.

In summary, the Mitsubishi Electronics P91DW projector is a highly capable device that combines brightness, portability, and versatility. Whether for business, education, or home entertainment, its robust features and reliable technology make it an excellent choice for professionals and casual users alike.