User`s manual

Am186™CC Microcontroller Router Reference Design User’s Manual
B-3
INT0 TIP Ethernet Active High edge
INT7 TIP serial port 1 Active High edge
INT8 TIP serial port 0 Active High edge
INT4 DTMF 1 Active High
INT5 DTMF 2 Active High
INT1 USB Internal
Table B-4. LED Status
LED Status
CR1
1
Ethernet status - indicates a good 10BaseT connection.
Corresponds to the PCnet-ISA II LED0 signal name.
CR2
1
Ethernet status - indicates receive activity from the network.
Corresponds to the PCnet-ISA II LED1 signal name.
CR3
1
Ethernet status - indicates transmit activity from the
network. Corresponds to the PCnet-ISA II LED3 signal
name.
CR4 ISDN B1
CR5 ISDN B2
CR6 ISDN D
CR7 USB
CR8 ISDN U T7237A
CR9 High-Speed UART; transmit = green, receive = red, receive
and transmit = orange
1. These are the default functions for CR1, CR2, and CR3. Their func-
tions can be changed with the ISA bus configuration registers of the
PCnet-ISA II Ethernet controller and can be modified by software or
the EEPROM.
Table B-3. Interrupt Assignments (Continued)
Interrupt Device Polarity
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