User`s guide

T-MOPSlcdSA User's Guide
Keyboardand Feature Interface 24
24
11.4.5 BATT (System Battery Connection)
 This pin connects a system battery to all modules.
 The battery voltage has to be higher than 2.2V and lower than 3.5. A 3V battery is
recommended.
 A battery is not needed to hold CMOS setup data. Your configurations for hard disks,
floppy drives, and other peripherals are saved in an onboard DRAM. However, you need a
battery to save the CMOS date and time when power supply is turned off.
11.4.6 Example Connection AT-keyboard and Other Functions
(KBCLK)
6 5
(DIN41524)
FEMALE
6 PIN MINI-DIN
FEMALE
(PS/2 STYLE)
(+5V Vcc)
(+5V Vcc)
(PWRGOOD)
(/KBLOCK)
(/RESIN)
(BATT)
(Speaker)
(GND)
(KBDAT)
3
5
2
1
4
3
5 PIN DIN 180°
12
4
(KBCLK)
(GND)
(KBDAT)