Specifications

PL 3120/PL 3150/PL 3170 Power Line Smart Transceiver Data Book 33
V
SS
Drive Out
SERVICE~ Pin
Signal Out
Firmware
Samples
For driving a 50% duty cycle output.
Waveform is sampled for external ground condition.
20 mA
Sink
Broadcast
ID
Config
Pull-Up
LED
SERVICE~
V
DD
Three-
State
Low Low Low
Three-
State
Three-
State
PL 3120/3150 Smart Transceiver
Figure 2.11 PL Smart Transceiver SERVICE~ Circuit
Table 2.10 Service LED Behavior During Different States
Device State
0xF015
State Code Service LED
Applicationless and Unconfigured 3 On
Unconfigured (but with an Application) 2 Flashing
Configured, Hard Offline 6 Off
Configured 4 Off
PL 3150 Defective External Memory — On
The SERVICE~ pin is active low and the service pin message is sent at most once per SERVICE~ pin transition. The
service pin message goes into the next available priority or non-priority output network buffer. Devices in the
applicationless state that do not have an external pullup will transmit the SERVICE~ pin message after every reset.