Connections
CB3067
28
Version: 1.0
6.14
System connector (P1102)
A 2x12-pin connector is used for the connection of signals that are typical of the system. Power button, reset,
speaker, LEDs for hard disk and for Suspend mode are connected here along with three further status LEDs
that are controlled via GPIOs. Of these three LEDs, LED1 and LED2 are already equipped with series
resistors. The pin assignment is designed so that associated pins are located opposite or near to each other.
Fig. 16: CB3067 system connector (P1102)
Pin assignment system connector
Description
Name
Pin
Name
Description
Ground
GND
1
14
3.3 V
3.3 V supply voltage
Reset to ground
RSTBTTN#
2
14
PWRBTN#
On/Suspend button
LED Suspend / ACPI
S-LED
3
15
S3.3V
Standby supply 3.3 V
LED hard disk
SATALED
4
16
GPIOLED3
LED GPIO device 3
LED GPIO device 1
GPIOLED1
5
17
BATT
RTC Battery
LED GPIO device 2
GPIOLED2
6
18
SMBALERT# SMB Alert
SMB Clock
SMBCLKEX
7
19
SMBDATEXT SMB Data
Speaker
SPEAKER
8
20 S VCC
Standby supply 5 V
Reserved
NC
9
21 NC
Reserved
Ground
GND
10
22 VCC
5 V supply voltage
Ground
GND
11
23 VCC
5 V supply voltage
Ground
GND
12
24 VCC
5 V supply voltage
