89H64H16AG2ZCBLGI Datasheet 89H64H16AG2ZCBLGI, 89H64H16AG2ZCBL, 89H64H16AG2ZCBLI | P7-P9

7 of 62 November 28, 2011

IDT 89HPES64H16AG2 Data Sheet

PE14TP[3:0]

PE14TN[3:0]

O PCI Express Port 14 Serial Data Transmit. Differential PCI Express

transmit pairs for port 14.

PE15RP[3:0]

PE15RN[3:0]

I PCI Express Port 15 Serial Data Receive. Differential PCI Express

receive pairs for port 15. When port 14 is merged with port 15, these sig-

nals become port 14 receive pairs for lanes 4 through 7.

PE15TP[3:0]

PE15TN[3:0]

O PCI Express Port 15 Serial Data Transmit. Differential PCI Express

transmit pairs for port 15. When port 14 is merged with port 15, these sig-

nals become port 14 transmit pairs for lanes 4 through 7.

Signal Type Name/Description

GCLKN[1:0]

GCLKP[1:0]

I Global Reference Clock. Differential reference clock input pair. This clock

is used as the reference clock by on-chip PLLs to generate the clocks

required for the system logic. The frequency of the differential reference

clock is determined by the GCLKFSEL signal.

P[15:0]CLKN

P[15:0]CLKP

I Port x Reference Clock. Differential reference clock pair associated with

ports 0 through 15.

Unused port clock pins should be connected to Vss on the board.

Table 3 Reference Clock Pins

Signal Type Name/Description

MSMBADDR[4:1] I Master SMBus Address. These pins determine the SMBus address of the

serial EEPROM from which configuration information is loaded.

MSMBCLK I/O Master SMBus Clock. This bidirectional signal is used to synchronize

transfers on the master SMBus.

MSMBDAT I/O Master SMBus Data. This bidirectional signal is used for data on the mas-

ter SMBus.

SSMBADDR[5,3:1] I Slave SMBus Address. These pins determine the SMBus address to

which the slave SMBus interface responds.

SSMBCLK I/O Slave SMBus Clock. This bidirectional signal is used to synchronize trans-

fers on the slave SMBus.

SSMBDAT I/O Slave SMBus Data. This bidirectional signal is used for data on the slave

SMBus.

Table 4 SMBus Interface Pins

Signal Type Name/Description

Table 2 PCI Express Interface Pins (Part 3 of 3)

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IDT 89HPES64H16AG2 Data Sheet

Signal Type Name/Description

GPIO[0] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: PART0PERSTN

Alternate function pin type: Input

Alternate function: Assertion of this signal initiated a partition fundamental

reset in the corresponding partition.

GPIO[1] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: PART1PERSTN

Alternate function pin type: Input

Alternate function: Assertion of this signal initiated a partition fundamental

reset in the corresponding partition.

GPIO[2] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: PART2PERSTN

Alternate function pin type: Input

Alternate function: Assertion of this signal initiated a partition fundamental

reset in the corresponding partition.

GPIO[3] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: PART3PERSTN

Alternate function pin type: Input

Alternate function: Assertion of this signal initiated a partition fundamental

reset in the corresponding partition.

GPIO[4] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

1st Alternate function — Reserved

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.

GPIO[7] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

GPIO[8] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: IOEXPINTN

Alternate function pin type: Input

Alternate function: IO expander interrupt.

GPIO[9] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0APN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 0 Attention Push Button Input.

Table 5 General Purpose I/O Pins (Part 1 of 7)

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IDT 89HPES64H16AG2 Data Sheet

GPIO[10] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0PDN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 0 Presence Detect Input.

GPIO[11] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0PFN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 0 Power Fault Input.

GPIO[12] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0PWRGDN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 0 Power Good Input.

GPIO[13] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0MRLN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 0 Manually Operated Retention

Latch Input.

GPIO[14] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0AIN

Alternate function pin type: Output

Alternate function: Hot Plug Signal Group 0 Attention Indicator Output.

GPIO[15] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0PIN

Alternate function pin type: Output

Alternate function: Hot Plug Signal Group 0 Power Indicator Output.

GPIO[16] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0PEP

Alternate function pin type: Output

Alternate function: Hot Plug Signal Group 0 Power Enable Output.

GPIO[17] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP0RSTN

Alternate function pin type: Output

Alternate function: Hot Plug Signal Group 0 Reset Output.

GPIO[18] I/O General Purpose I/O.

Alternate function pin name: HP1APN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 1 Attention Push Button Input.

GPIO[19] I/O General Purpose I/O.

Alternate function pin name: HP1PDN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 1 Presence Detect Input.

GPIO[20] I/O General Purpose I/O.

This pin can be configured as a general purpose I/O pin.

Alternate function pin name: HP1PFN

Alternate function pin type: Input

Alternate function: Hot Plug Signal Group 1 Power Fault Input.

Signal Type Name/Description

Table 5 General Purpose I/O Pins (Part 2 of 7)

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P45 P46-P48 P49-P51 P52-P54 P55-P57 P58-P60 P61-P62

89H64H16AG2ZCBLGI

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PCI Interface IC PCIE GEN2 SWITCH

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