CX82100 Home Network Processor Data Sheet
Table 2-10. CX82100 HNP Definitions of Recommended GPIO and Host Signals
Pin Signal
Pin No.
I/O
I/O Type
LED Indicator Interface
Signal Name/Description
LED_READY (GPIO7)
E5
O
Itpu/Ot4
READY Indicator. Active high output indicating the HNP is ready.
Connect LED_READY (GPIO7) to the LED plus terminal. Connect
the LED minus terminal to +3.3V through 100 Ω.
LAN 1 Interface
LAN1_RST# (GPIO20)
LAN2_RST# (GPIO6)
B1
D6
O
O
Itpu/Ot4
LAN 1 Reset. Active low reset asserted to reset the LAN 1 EPHY.
Connect to LAN 1 EPHY RSTB pin through 1 KΩ. Also, connect the
LAN 1 EPHY RSTB pin to +3.3V through 10 KΩ and to GND
through 0.1 µF.
LAN 2 Interface
Itpu/Ot4
LAN 2 Reset. Active low output asserted to reset the LAN 2 EPHY.
Connect to LAN 2 EPHY RSTB pin through 1 KΩ. Also, connect the
LAN 2 EPHY RSTB pin to +3.3V through 10 KΩ and to GND
through 0.1 µF.
2-20
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