Chapter 3
Hardware
28
Reference Manual
ReadyBoard 620
Miscellaneous
Utility Interface
•
Power-On – This control signal is provided externally through a switch by connecting ground to pin 1
on the Utility connector (J16).
•
Reset Switch – This signal is provided externally through a switch by connecting ground to pin 3 on the
Utility connector (J16). This signal line is shared with Reset Switch (SW1).
•
PC Beep Speaker – The output signals from the I/O Hub (CS5536) and the Super I/O (W83627HF) are
fed to pin 5 of the Utility connector (J16) through an OR circuit, and in conjunction with the +5V (pin
4), drives an external PC Beep speaker. The PC Beep speaker signal from the I/O Hub is also fed to the
on-board Audio CODEC to provide a PC Beep signal for the Line Out connections.
Note:
The shaded areas denote power or ground.
Reset Switch
The reset switch (SW1), located on the board edge, provides an internal reset signal (momentary ground) to
the ReadyBoard 620. The reset switch shares the reset line with pin 3 of the Utility interface (J16).
User GPIO Signals
The ReadyBoard 620 provides eight GPIO pins for custom use, and the signals are routed to the J4
connector. ADLINK has provided sample applications showing how to use the GPIO pins in the
Miscellaneous Source Code Examples on the ReadyBoard 620 Support Software DVD.
For more information about the GPIO pin operation, refer to the datasheet specifications or Programming
Manual for the Super I/O (W83627HF) controller at:
http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83627HF_F_HG_Ga.pdf
lists the GPIO pin/signals on a 10-pin, 2 rows, odd/even (1, 2) with 2 mm pin spacing.
Table 3-10. Utility Interface Pin/Signal Descriptions (J16)
Pin #
Signal
Description
1
PWRON
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
Speaker
PC Beep S Output (connect between pins 5 & 4)
Table 3-11. User GPIO Signals Pin/Signal Descriptions (J4)
Pin #
Signal
Description
1
GND
Ground
2
VCC
+5 Volts DC +/ 5%
3
GPIO4
User defined
4
GPIO5
User defined
5
GPIO6
User defined
6
GPIO7
User defined
7
GPIO0
User defined
8
GPIO1
User defined
Summary of Contents for ReadyBoard 620
Page 1: ...ReadyBoard 620 Single Board Computer Reference Manual P N 5001820B Revision B ...
Page 6: ...Contents vi Reference Manual ReadyBoard 620 ...
Page 44: ...Chapter 4 BIOS Setup Utility 38 Reference Manual ReadyBoard 620 ...
Page 46: ...Appendix A Technical Support 40 Reference Manual ReadyBoard 620 ...
Page 49: ...Index ReadyBoard 620 Reference Manual 43 references 1 weight ReadyBoard 620 12 ...