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(18) Front 1394 Header: J1394A1 (optional)
Pin Assignment Pin Assignment
1
A1+
3
Ground
5
B1+
7
+12V
9
KEY
(19) Digital Audio Connector: JSPDIF_OUT/ (JSPDIF_IN: optional)
The connector is used to connect SPDIF (Sony & Philips Digital Interconnect
Format) interface for digital audio transmission.
Pin Assignment
1
+5V
2
SPDIF_OUT
3
Ground
(20) Flash Rom Read/Write Enable : J3 (optional)
J3
Assignment
Pin1-2 on
Enable the flash Rom to read and write.
Pin 1-2 off
Disable the flash Rom to read and write.
(21) AUDIO DJ Connector: JDJ1 (optional)
Pin Assignment
1
SMBDATA
3
INT_B
5
ATX_PWROK
(22) Power Source Selection for IEEE1394: J1394V1 (optional)
J1394V1
Assignment
Pin 1-2 close
+3.3V
1
3
Pin 2-3 close
+3.3V Standby Voltage 3.3V Standby Voltage for IEEE1394A
1
3
2
A1-
4
Ground
6
B1-
8
+12V
10
NA
1
Pin
Assignment
2
SMBCLK
4
KEY
BIOSTAR Motherboard
1
9
10
2
1
5
Description
3.3V for IEEE1394A connector
located at the J1394A1 header.
connector located at the J1394A1
header.
1
17 17 17 17 17
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