IDT 89HPES16NT16G2 Datasheet
8 of 33 December 17, 2013
GPIO[4] I/O General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
1st Alternate function pin name: FAILOVER0
1st Alternate function pin type: Input
1st Alternate function: When this signal changes state and the correspond-
ing failover capability is enabled, a failover event is signaled.
2nd Alternate function pin name: P0LINKUPN
2nd Alternate function pin type: Output
2nd Alternate function: Port 0 Link Up Status output.
GPIO[5] I/O General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
1st Alternate function pin name: GPEN
1st Alternate function pin type: Output
1st Alternate function: Hot-plug general purpose even output.
2nd Alternate function pin name: P0ACTIVEN
2nd Alternate function pin type: Output
2nd Alternate function: Port 0 Link Active Status Output.
GPIO[6] I/O General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
1st Alternate function pin name: FAILOVER1
1st Alternate function pin type: Input
1st Alternate function: When this signal changes state and the correspond-
ing failover capability is enabled, a failover event is signaled.
2nd Alternate function pin name: FAILOVER3
2nd Alternate function pin type: Input
2nd Alternate function: When this signal changes state and the correspond-
ing failover capability is enabled, a failover event is signaled.
GPIO[7] I/O General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
1st Alternate function pin name: FAILOVER2
1st Alternate function pin type: Input
1st Alternate function: When this signal changes state and the correspond-
ing failover capability is enabled, a failover event is signaled.
2nd Alternate function pin name: P8LINKUPN
2nd Alternate function pin type: Output
2nd Alternate function: Port 8 Link Up Status output.
GPIO[8] I/O General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
1st Alternate function pin name: IOEXPINTN
1st Alternate function pin type: Input
1st Alternate function: IO expander interrupt.
2nd Alternate function pin name: P8ACTIVEN
2nd Alternate function pin type: Output
2nd Alternate function: Port 8 Link Active Status Output.
Signal Type Name/Description
STK2CFG[4:0] I Stack 2 Configuration. These pins select the configuration of stack 2.
STK3CFG[4:0] I Stack 3 Configuration. These pins select the configuration of stack 3.
Table 6 Stack Configuration Pins
Signal Type Name/Description
Table 5 General Purpose I/O Pins (Part 2 of 2)