ADLINK CoreModule 435 - Manual (Page 33)

Chapter 3 Hardware
CoreModule 435 Reference Manual 27
Utility Interface
The Utility interface provides various utility and I/O signals on the module and consists of a 10-pin, 0.1"
(2.54mm) pitch header. The Vortex CPU drives the signals on the Utility interface, and Table 3-9 provides
the signal definitions.
• PS/2 Keyboard and PS/2 Mouse
• Battery
• Reset Switch
• Speaker
Keyboard
The signal lines for a PS/2 keyboard are provided from the Vortex CPU to the Utility interface.
Mouse
The signal lines for a PS/2 mouse are provided from the Vortex CPU to the Utility interface.
Battery
An external battery input connection is provided through the Utility interface to support a battery backup for
the CMOS RAM and the RTC (Real Time Clock).
Reset Switch
An external reset switch provides the reset signal through the Utility interface to a reset circuit, which drives
the Vortex CPU.
Speaker
The speaker signal provides sufficient signal strength to drive a 1W 8 Ω “Beep” speaker through the Utility
interface at an audible level. The speaker signal is driven from an on-board amplifier and the Vortex CPU.
Table 3-9 describes the pin signals of the Utility interface, which uses a 10-pin, right-angle header with 2
rows, odd/even sequence (1, 2), and 0.100" (2.54mm) pitch.
Note: The shaded table cells denote power or ground. The * symbol indicates the signal is Active Low.
Table 3-9. Utility Interface Pin Signals (J5)
Pin # Signal Description
1 SPKR Speaker Output
2 BATV- Ground return
3 RESETSW* External Reset Switch signal
4 MDATA Mouse Data input
5 KBDATA Keyboard Data input
6 KBCLK Keyboard Clock input
7 GND Ground
8 KMPWR Keyboard /Mouse power (+5V) output
9 BATV+ Real time battery voltage (3.6V Type/ 4.0V Max) input
10 MCLK Mouse Clock input