Adlink CoreModule 435 Bedienungsanleitung PDF herunterladen (Seite 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

BATV- Ground return

3 RESETSW* External Reset Switch signal

4 MDATA Mouse Data input

5 KBDATA Keyboard Data input

6 KBCLK Keyboard Clock input

GND Ground

KMPWR Keyboard /Mouse power (+5V) output

BATV+ Real time battery voltage (3.6V Type/ 4.0V Max) input

10 MCLK Mouse Clock input

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 57 58

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Adlink CoreModule 435 Bedienungsanleitung Seite 33