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Chapter 3
Hardware
ReadyBoard 700
Reference Manual
49
Miscellaneous
Utility Interface (J18)
♦
Power-On – This control signal is provided externally by connecting ground to pin-1 on the
Utility connector (J18).
♦
Reset Switch – This signal is provided externally through a switch by connecting ground to
pin-3 on the Utility connector (J18). This signal line is shared with Reset Switch (SW1).
♦
PC-Beep Speaker – This output signal from the Southbridge (VT82C686B) is fed to pin-5 of
the Utility connector (J18), and in conjunction with the +5V (pin-4), drives an external PC
speaker. The PC-Beep Speaker signal is also fed to the on board Audio CODEC to provide a
PC-beep signal for the Line out connections.
Table 3-23. Utility Interface Pin/Signal Descriptions (J18)
Pin #
Signal
Description
1
PS_0n
Power On input (connect between pins-1 & -2)
2
GND
Ground
3
RST_SW
Reset Switch input or output (connect between pins-3 & -2)
4
+5V
+5 Volts
5
BUZZG
PC-Beep S Output (connect between pins-5 & -4)
Notes:
The shaded area denotes power or ground.
Reset Switch (SW1)
The reset switch (SW1), located on the board edge, provides an internal reset signal (momentary
ground) to the ReadyBoard 700. The reset switch (SW1) shares the reset signal line with pin-3 of the
Utility interface (J18).
Keyboard/Mouse Interface (J16)
The PS/2 Keyboard and Mouse signal lines, also fully PC/AT compatible, share the same mini-DIN
connector (J16). A PS/2 Y-cable connects to the PS/2 connector (J16), on the board edge.
NOTE
Either device can be connected to either of the connectors on the Y-cable.
The Southbridge senses where each device is connected and provides the
appropriate signals for both.
Table 3-24. Keyboard/Mouse Interface Pin/Signal Descriptions (J16)
Pin #
Signal
Description
1
KB_Data
Keyboard data
2
MS_Data
Mouse Data
3
GND
Ground
4
+KBMS
Keyboard/Mouse Power (+ 5V +/- 5%)
5
KB_Clk
Keyboard Clock
6
MS_Clk
Mouse Clock
7, 8, 9
GND
Ground (Used for grounding the shield on the connector
Notes:
The shaded area denotes power or ground.
Summary of Contents for ReadyBoard 700
Page 1: ...ReadyBoard 700 Single Board Computer Reference Manual P N 5001722A Revision C ...
Page 6: ...Contents vi Reference Manual ReadyBoard 700 ...
Page 10: ...Chapter 1 About This Manual 4 Reference Manual ReadyBoard 700 ...
Page 60: ...Chapter 3 Hardware 54 Reference Manual ReadyBoard 700 ...
Page 78: ...Chapter 4 BIOS Setup 72 Reference Manual ReadyBoard 700 ...
Page 80: ...Appendix A Technical Support 74 Reference Manual ReadyBoard 700 ...
Page 88: ...Index 82 Reference Manual ReadyBoard 700 ...
Page 89: ......
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