Intel DX79TO User's Guide download pdf (Page 49)

Installing and Replacing Desktop Board Components

Consumer IR (CIR) Headers

The Desktop Board has two CIR headers: the input or receiver header (Figure 20, F)

and the output or emitter header (Figure 20, D). The receiver header consists of a

iltered translated infrared input compliant with Microsoft CIR specifications and a

“learning” infrared input. The learning input is a high-pass input which the computer

can use to “learn” to speak the infrared communication language of other user

remotes. The emitter header consists of two output ports which the computer can use

to emulate “learned” infrared commands in order to control external electronic

hardware.

NOTE

The Consumer IR option must be enabled in the system BIOS before it can

function. Press <F2> at boot to enter the system BIOS, and go to Advanced >

Peripheral Configuration > Enhanced Consumer IR, and set this option to

Enabled.

Table 9 shows the pin assignments and

signal names for the front panel CIR receiver

(input) header and Table 10 shows the pin assignments and signal na

mes for the back

panel CIR emitter (output) header.

Table 9. Front Panel CIR Receiver (Input) Header Signal Names

Pin Signal Name Pin Signal Name

1 Ground 2 LED

3 No Connection 4 Learn-In

5 +5 V Standby 6 Vcc

7 Key (no pin) 8 CIR Input

Table 10. Back Panel CIR Header Emitter (Output) Header Signal Names

Pin Signal Name Pin Signal Name

1 Emitter Out 1 2 Emitter Out 2

3 Ground 4 Key (no pin)

5 Jack Detect 1 6 Jack Detect 2

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 85 86

No comments

Intel DX79TO User's Guide Page 49