Table of Contents
Advertisement
Chapter 3
Table 3-18. Ethernet Port 2 Pin/Signal Descriptions (J11)
Pin # GND
1
TX2+
3
TX2-
4
RX2+
6
RX2-
9
ACT
11
SPEED
2, 7, 8
NC
5, 13, 14 GND
10, 12
+3VSB
Notes: The shaded area denotes power or ground.
Audio Interface (J19)
The audio solution on the ReadyBoard 700 is provided by the Southbridge (VT82C686B) and the ion
board Audio CODEC (VT1612A). These two chips communicate through a digital interface, defined
by and compliant with AC'97 Rev 2.2. Input or output signals for the audio interface go through the 16-
pin connector (J19) to an external cable and/or board, which has the respective audio connections. The
PC-Beep Speaker signal from the Southbridge is also fed to the on board Audio CODEC to provide a
PC-beep signal for the stereo line out connections.
Audio CODEC (VT1612A) features
AC'97 Rev 2.2 compliant
18-bit full duplex performance
Variable sampling rate at 1Hz resolution
Stereo (Left and Right) Line In
Stereo (Left and Right) Line Out
Microphone (mono) in
PC-Beep speaker signal through the Stereo (Left and Right) Line Out connections
Table 3-19. Audio Interface Pin/Signal Descriptions (J19)
Pin #
Signal
1, 3
NC
2, 4, 7, 8, 11,
12, 13, 14, 16
5
LINEOUTL
6
LINEOUTR
9
LINE_IN_L
10
LINE_IN_R
15
MICIN
Notes: The shaded area denotes power or ground.
ReadyBoard 700
Digital Ground
Analog Twisted Pair Ethernet Transmit Differential Pair. These pins transmit
the serial bit stream for transmission on the Unshielded Twisted Pair Cable
(UTP). These signals interface directly with an isolation transformer.
Analog Twisted Pair Ethernet Receive Differential Pair. These pins receive
the serial bit stream from the isolation transformer.
Link/Activity signal indicates a Link is established or Activity is occurring
Speed signal for 10BaseT or 100BaseT transfer rate
Not connected
Grounded (goes to ground through 0.1 capacitor)
+3V for plus side of LEDs. See Table 2-7.
Description
Not Connected
GND_AUD
Audio ground
Line Out signal left channel
Line Out signal right channel
Line in signal left channel
Line in signal right channel
Microphone signal in
Reference Manual
Hardware
45
Advertisement
Table of Contents
