Chapter:
Connectors
SMBus
page 34
Advanced Digital Logic
ADLS15PC
4.16 SMBus
The ADLS15PC can communicate with external devices via the SMBus protocol. The signals for this
protocol are available through a standard IDC socket connector with a spacing of 2.54 mm. A 3.3 volt
power supply is also available for these SMBus devices. Additionally, you can use this connector to
access the PWRBTN# and PS_ON# signals used for power control. If PWRBTN# is held low for four
seconds an unconditional hardware power-down event will occur. In the off state S5 both SMBALRT# and
PWRBTN# will generate a power-on event if asserted.
Pin
Name
Description
1
3.3V
3.3 volt supply
2
CS-SMB-CLK SMBus clock
3
CS-SMB-DAT SMBus data
4
SMB-ALERT# SMBus alert
5
PWRBTN#
power button
6
PS_ON#
power supply on
7
GND
ground
Summary of Contents for S15PC
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