MSC CX-MB-EVA2 user manual Battery, Beeper, Power Button, Reset Button

CX-MB-EVA2 User's ManualHardware

Pin	Signal name	Function
1	VCC	Power Supply
2	SDO_TDO	Serial Data Out
3	SDI_TDI	Serial Data In
4	ISPEN#	Programming Enable
5	KEY	Keypin
6	MODE_TMS	Programming Mode
7	GND	Ground
8	SCLK_TCK	Serial Clock

Table 30 Pinout Lattice Programming Interface

4.24Battery

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

4.25Beeper

A piezo signal generator is implemented for acoustic signals.

Type:Digisound F/DGX05P

4.26Power 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

4.27Reset 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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