MSC COM EXPRESS CX-MB-EVA2 Manual de usuario descargar pdf (Pagina 42)

CX-MB-EVA2 User's Manual Hardware

Signal name

Function

VCC

Power Supply

SDO_TDO

Serial Data Out

SDI_TDI

Serial Data In

ISPEN#

Programming Enable

KEY

Keypin

MODE_TMS

Programming Mode

GND

Ground

SCLK_TCK

Serial Clock

Table 30 Pinout Lattice Programming Interface

4.24 Battery

The RTC on the COM Express module is buffered with a socketed battery on the base

board.

In order to clear the CMOS memory, the battery voltage to the COM Express module

can be disconnected via jumper J1101.

Type of battery: 2032

Battery socket: Renata SMTU2032-1

4.25 Beeper

A piezo signal generator is implemented for acoustic signals.

Type: Digisound F/DGX05P

4.26 Power Button

For switching the system on a Power push button has been implemented.

The PWR_BTN# signal is low-active and is connected directly to the corresponding pin

of the COM Express module.

Type: C&K JTP-1230F

4.27 Reset Button

There is a push button for resetting the system.

The RESET# signal is low-active and is connected to the SYS_RESET#- pin of the COM

Express module.

Type: C&K JTP-1230F

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MSC COM EXPRESS CX-MB-EVA2 Manual de usuario Pagina 42